| Seq | Timestamp | Type | Name | Duration |
|---|---|---|---|---|
| 0/0 | 2026/07/30 08:07 | flow | patch-triage |
2mArgs:null Results: {
"EnableConfigs": [
"OCFS2_FS",
"CONFIGFS_FS"
],
"FocusSymbols": [
"ocfs2_init_security_and_acl",
"ocfs2_init_acl",
"ocfs2_acl_init_prepare",
"ocfs2_calc_xattr_init",
"ocfs2_xattr_set_handle"
],
"Reasoning": "The patch refactors ACL initialization during inode creation in OCFS2 to prevent deadlocks. It modifies how ACLs are calculated and set for new inodes (e.g., via mknod, mkdir, create, symlink, reflink). The changes are in core OCFS2 logic and are reachable via standard VFS syscalls when operating on an OCFS2 filesystem.",
"WorthFuzzing": true
} |
| 1/1 | 2026/07/30 08:07 | action | read-patch-diff |
0mArgs:null Results: {
"PatchDiff": "commit 728343b35039e067547debc061e2cdabe1eb06cc\nAuthor: syz-cluster \u003ctriage@syzkaller.com\u003e\nDate: Thu Jul 30 08:07:28 2026 +0000\n\n syz-cluster: applied patch under review\n\ndiff --git a/fs/ocfs2/acl.c b/fs/ocfs2/acl.c\nindex af1e2cedb217f..090ec60fb576a 100644\n--- a/fs/ocfs2/acl.c\n+++ b/fs/ocfs2/acl.c\n@@ -110,8 +110,7 @@ static void *ocfs2_acl_to_xattr(const struct posix_acl *acl, size_t *size)\n \treturn ocfs2_acl;\n }\n \n-static struct posix_acl *ocfs2_get_acl_nolock(struct inode *inode,\n-\t\t\t\t\t int type,\n+static struct posix_acl *ocfs2_get_acl_nolock(struct inode *inode, int type,\n \t\t\t\t\t struct buffer_head *di_bh)\n {\n \tint name_index;\n@@ -349,63 +348,105 @@ int ocfs2_acl_chmod(struct inode *inode, struct buffer_head *bh)\n * Initialize the ACLs of a new inode. If parent directory has default ACL,\n * then clone to new inode. Called from ocfs2_mknod.\n */\n-int ocfs2_init_acl(handle_t *handle,\n-\t\t struct inode *inode,\n-\t\t struct inode *dir,\n-\t\t struct buffer_head *di_bh,\n-\t\t struct buffer_head *dir_bh,\n-\t\t struct ocfs2_alloc_context *meta_ac,\n-\t\t struct ocfs2_alloc_context *data_ac)\n+void ocfs2_acl_init_release(struct ocfs2_acl_state *state)\n+{\n+\tposix_acl_release(state-\u003edefault_acl);\n+\tposix_acl_release(state-\u003eacl);\n+\tstate-\u003edefault_acl = NULL;\n+\tstate-\u003eacl = NULL;\n+}\n+\n+int ocfs2_acl_init_prepare(struct inode *inode, struct inode *dir,\n+\t\t\t struct buffer_head *dir_bh,\n+\t\t\t struct ocfs2_acl_state *state)\n {\n \tstruct ocfs2_super *osb = OCFS2_SB(inode-\u003ei_sb);\n-\tstruct posix_acl *acl = NULL;\n-\tint ret = 0, ret2;\n-\tumode_t mode;\n-\n-\tif (!S_ISLNK(inode-\u003ei_mode)) {\n-\t\tif (osb-\u003es_mount_opt \u0026 OCFS2_MOUNT_POSIX_ACL) {\n-\t\t\tdown_read(\u0026OCFS2_I(dir)-\u003eip_xattr_sem);\n-\t\t\tacl = ocfs2_get_acl_nolock(dir, ACL_TYPE_DEFAULT,\n-\t\t\t\t\t\t dir_bh);\n-\t\t\tup_read(\u0026OCFS2_I(dir)-\u003eip_xattr_sem);\n-\t\t\tif (IS_ERR(acl))\n-\t\t\t\treturn PTR_ERR(acl);\n+\tint ret = 0;\n+\n+\tstate-\u003edefault_acl = NULL;\n+\tstate-\u003eacl = NULL;\n+\tstate-\u003emode = inode-\u003ei_mode;\n+\n+\tif (S_ISLNK(inode-\u003ei_mode))\n+\t\treturn 0;\n+\n+\tif (osb-\u003es_mount_opt \u0026 OCFS2_MOUNT_POSIX_ACL) {\n+\t\tdown_read(\u0026OCFS2_I(dir)-\u003eip_xattr_sem);\n+\t\tstate-\u003edefault_acl =\n+\t\t\tocfs2_get_acl_nolock(dir, ACL_TYPE_DEFAULT, dir_bh);\n+\t\tup_read(\u0026OCFS2_I(dir)-\u003eip_xattr_sem);\n+\t\tif (IS_ERR(state-\u003edefault_acl)) {\n+\t\t\tret = PTR_ERR(state-\u003edefault_acl);\n+\t\t\tstate-\u003edefault_acl = NULL;\n+\t\t\treturn ret;\n \t\t}\n-\t\tif (!acl) {\n-\t\t\tmode = inode-\u003ei_mode \u0026 ~current_umask();\n-\t\t\tret = ocfs2_acl_set_mode(inode, di_bh, handle, mode);\n-\t\t\tif (ret) {\n-\t\t\t\tmlog_errno(ret);\n+\t\tif (state-\u003edefault_acl) {\n+\t\t\tstate-\u003eacl = posix_acl_dup(state-\u003edefault_acl);\n+\t\t\tif (!state-\u003eacl) {\n+\t\t\t\tret = -ENOMEM;\n \t\t\t\tgoto cleanup;\n \t\t\t}\n+\t\t\tret = __posix_acl_create(\u0026state-\u003eacl, GFP_NOFS,\n+\t\t\t\t\t\t \u0026state-\u003emode);\n+\t\t\tif (ret \u003c 0)\n+\t\t\t\tgoto cleanup;\n+\t\t\tif (ret == 0) {\n+\t\t\t\tposix_acl_release(state-\u003eacl);\n+\t\t\t\tstate-\u003eacl = NULL;\n+\t\t\t}\n+\t\t\tif (!S_ISDIR(inode-\u003ei_mode)) {\n+\t\t\t\tposix_acl_release(state-\u003edefault_acl);\n+\t\t\t\tstate-\u003edefault_acl = NULL;\n+\t\t\t}\n+\t\t} else {\n+\t\t\tstate-\u003emode \u0026= ~current_umask();\n \t\t}\n+\t} else {\n+\t\tstate-\u003emode \u0026= ~current_umask();\n \t}\n-\tif ((osb-\u003es_mount_opt \u0026 OCFS2_MOUNT_POSIX_ACL) \u0026\u0026 acl) {\n-\t\tif (S_ISDIR(inode-\u003ei_mode)) {\n+\n+\treturn 0;\n+cleanup:\n+\tocfs2_acl_init_release(state);\n+\treturn ret;\n+}\n+\n+int ocfs2_init_acl(handle_t *handle, struct inode *inode,\n+\t\t struct buffer_head *di_bh,\n+\t\t struct ocfs2_alloc_context *meta_ac,\n+\t\t struct ocfs2_alloc_context *data_ac,\n+\t\t struct ocfs2_acl_state *state)\n+{\n+\tstruct ocfs2_super *osb = OCFS2_SB(inode-\u003ei_sb);\n+\tint ret = 0;\n+\n+\tif (S_ISLNK(inode-\u003ei_mode))\n+\t\treturn 0;\n+\n+\tif (osb-\u003es_mount_opt \u0026 OCFS2_MOUNT_POSIX_ACL) {\n+\t\tif (S_ISDIR(inode-\u003ei_mode) \u0026\u0026 state-\u003edefault_acl) {\n \t\t\tret = ocfs2_set_acl(handle, inode, di_bh,\n-\t\t\t\t\t ACL_TYPE_DEFAULT, acl,\n-\t\t\t\t\t meta_ac, data_ac);\n+\t\t\t\t\t ACL_TYPE_DEFAULT,\n+\t\t\t\t\t state-\u003edefault_acl, meta_ac,\n+\t\t\t\t\t data_ac);\n \t\t\tif (ret)\n-\t\t\t\tgoto cleanup;\n+\t\t\t\treturn ret;\n \t\t}\n-\t\tmode = inode-\u003ei_mode;\n-\t\tret = __posix_acl_create(\u0026acl, GFP_NOFS, \u0026mode);\n-\t\tif (ret \u003c 0)\n-\t\t\treturn ret;\n+\t}\n \n-\t\tret2 = ocfs2_acl_set_mode(inode, di_bh, handle, mode);\n-\t\tif (ret2) {\n-\t\t\tmlog_errno(ret2);\n-\t\t\tret = ret2;\n-\t\t\tgoto cleanup;\n-\t\t}\n-\t\tif (ret \u003e 0) {\n-\t\t\tret = ocfs2_set_acl(handle, inode,\n-\t\t\t\t\t di_bh, ACL_TYPE_ACCESS,\n-\t\t\t\t\t acl, meta_ac, data_ac);\n+\tret = ocfs2_acl_set_mode(inode, di_bh, handle, state-\u003emode);\n+\tif (ret) {\n+\t\tmlog_errno(ret);\n+\t\treturn ret;\n+\t}\n+\n+\tif (osb-\u003es_mount_opt \u0026 OCFS2_MOUNT_POSIX_ACL) {\n+\t\tif (state-\u003eacl) {\n+\t\t\tret = ocfs2_set_acl(handle, inode, di_bh,\n+\t\t\t\t\t ACL_TYPE_ACCESS, state-\u003eacl,\n+\t\t\t\t\t meta_ac, data_ac);\n \t\t}\n \t}\n-cleanup:\n-\tposix_acl_release(acl);\n+\n \treturn ret;\n }\ndiff --git a/fs/ocfs2/acl.h b/fs/ocfs2/acl.h\nindex 667c6f03fa606..a91f9ce278d6d 100644\n--- a/fs/ocfs2/acl.h\n+++ b/fs/ocfs2/acl.h\n@@ -20,9 +20,20 @@ struct posix_acl *ocfs2_iop_get_acl(struct inode *inode, int type, bool rcu);\n int ocfs2_iop_set_acl(struct mnt_idmap *idmap, struct dentry *dentry,\n \t\t struct posix_acl *acl, int type);\n extern int ocfs2_acl_chmod(struct inode *, struct buffer_head *);\n-extern int ocfs2_init_acl(handle_t *, struct inode *, struct inode *,\n-\t\t\t struct buffer_head *, struct buffer_head *,\n-\t\t\t struct ocfs2_alloc_context *,\n-\t\t\t struct ocfs2_alloc_context *);\n+struct ocfs2_acl_state {\n+\tstruct posix_acl *default_acl;\n+\tstruct posix_acl *acl;\n+\tumode_t mode;\n+};\n+\n+int ocfs2_acl_init_prepare(struct inode *inode, struct inode *dir,\n+\t\t\t struct buffer_head *dir_bh,\n+\t\t\t struct ocfs2_acl_state *state);\n+void ocfs2_acl_init_release(struct ocfs2_acl_state *state);\n+int ocfs2_init_acl(handle_t *handle, struct inode *inode,\n+\t\t struct buffer_head *di_bh,\n+\t\t struct ocfs2_alloc_context *meta_ac,\n+\t\t struct ocfs2_alloc_context *data_ac,\n+\t\t struct ocfs2_acl_state *state);\n \n #endif /* OCFS2_ACL_H */\ndiff --git a/fs/ocfs2/namei.c b/fs/ocfs2/namei.c\nindex 1277666c77cd2..ea37a50580890 100644\n--- a/fs/ocfs2/namei.c\n+++ b/fs/ocfs2/namei.c\n@@ -256,6 +256,7 @@ static int ocfs2_mknod(struct mnt_idmap *idmap,\n \tsigset_t oldset;\n \tint did_block_signals = 0;\n \tstruct ocfs2_dentry_lock *dl = NULL;\n+\tstruct ocfs2_acl_state acl_state = { 0 };\n \n \ttrace_ocfs2_mknod(dir, dentry, dentry-\u003ed_name.len, dentry-\u003ed_name.name,\n \t\t\t (unsigned long long)OCFS2_I(dir)-\u003eip_blkno,\n@@ -330,10 +331,14 @@ static int ocfs2_mknod(struct mnt_idmap *idmap,\n \t\t}\n \t}\n \n+\tstatus = ocfs2_acl_init_prepare(inode, dir, parent_fe_bh, \u0026acl_state);\n+\tif (status \u003c 0)\n+\t\tgoto leave;\n+\n \t/* calculate meta data/clusters for setting security and acl xattr */\n-\tstatus = ocfs2_calc_xattr_init(dir, parent_fe_bh, mode,\n-\t\t\t\t \u0026si, \u0026want_clusters,\n-\t\t\t\t \u0026xattr_credits, \u0026want_meta);\n+\tstatus = ocfs2_calc_xattr_init(dir, mode, \u0026si, \u0026want_clusters,\n+\t\t\t\t \u0026xattr_credits, \u0026want_meta,\n+\t\t\t\t \u0026acl_state);\n \tif (status \u003c 0) {\n \t\tmlog_errno(status);\n \t\tgoto leave;\n@@ -411,8 +416,8 @@ static int ocfs2_mknod(struct mnt_idmap *idmap,\n \t\tinc_nlink(dir);\n \t}\n \n-\tstatus = ocfs2_init_acl(handle, inode, dir, new_fe_bh, parent_fe_bh,\n-\t\t\t meta_ac, data_ac);\n+\tstatus = ocfs2_init_acl(handle, inode, new_fe_bh, meta_ac, data_ac,\n+\t\t\t\t\u0026acl_state);\n \n \tif (status \u003c 0) {\n \t\tmlog_errno(status);\n@@ -477,6 +482,8 @@ static int ocfs2_mknod(struct mnt_idmap *idmap,\n \tbrelse(parent_fe_bh);\n \tkfree(si.value);\n \n+\tocfs2_acl_init_release(\u0026acl_state);\n+\n \tocfs2_free_dir_lookup_result(\u0026lookup);\n \n \tif (inode_ac)\ndiff --git a/fs/ocfs2/xattr.c b/fs/ocfs2/xattr.c\nindex fcddd3c13acdd..86f0293681fcc 100644\n--- a/fs/ocfs2/xattr.c\n+++ b/fs/ocfs2/xattr.c\n@@ -611,13 +611,10 @@ int ocfs2_calc_security_init(struct inode *dir,\n \treturn ret;\n }\n \n-int ocfs2_calc_xattr_init(struct inode *dir,\n-\t\t\t struct buffer_head *dir_bh,\n-\t\t\t umode_t mode,\n+int ocfs2_calc_xattr_init(struct inode *dir, umode_t mode,\n \t\t\t struct ocfs2_security_xattr_info *si,\n-\t\t\t int *want_clusters,\n-\t\t\t int *xattr_credits,\n-\t\t\t int *want_meta)\n+\t\t\t int *want_clusters, int *xattr_credits,\n+\t\t\t int *want_meta, struct ocfs2_acl_state *acl_state)\n {\n \tint ret = 0;\n \tstruct ocfs2_super *osb = OCFS2_SB(dir-\u003ei_sb);\n@@ -628,19 +625,15 @@ int ocfs2_calc_xattr_init(struct inode *dir,\n \t\t\t\t\t\t si-\u003evalue_len);\n \n \tif (osb-\u003es_mount_opt \u0026 OCFS2_MOUNT_POSIX_ACL) {\n-\t\tdown_read(\u0026OCFS2_I(dir)-\u003eip_xattr_sem);\n-\t\tacl_len = ocfs2_xattr_get_nolock(dir, dir_bh,\n-\t\t\t\t\tOCFS2_XATTR_INDEX_POSIX_ACL_DEFAULT,\n-\t\t\t\t\t\"\", NULL, 0);\n-\t\tup_read(\u0026OCFS2_I(dir)-\u003eip_xattr_sem);\n-\t\tif (acl_len \u003e 0) {\n-\t\t\ta_size = ocfs2_xattr_entry_real_size(0, acl_len);\n-\t\t\tif (S_ISDIR(mode))\n-\t\t\t\ta_size \u003c\u003c= 1;\n-\t\t} else if (acl_len != 0 \u0026\u0026 acl_len != -ENODATA) {\n-\t\t\tret = acl_len;\n-\t\t\tmlog_errno(ret);\n-\t\t\treturn ret;\n+\t\tif (acl_state-\u003edefault_acl \u0026\u0026 S_ISDIR(mode)) {\n+\t\t\tacl_len = acl_state-\u003edefault_acl-\u003ea_count *\n+\t\t\t\t sizeof(struct ocfs2_acl_entry);\n+\t\t\ta_size += ocfs2_xattr_entry_real_size(0, acl_len);\n+\t\t}\n+\t\tif (acl_state-\u003eacl) {\n+\t\t\tacl_len = acl_state-\u003eacl-\u003ea_count *\n+\t\t\t\t sizeof(struct ocfs2_acl_entry);\n+\t\t\ta_size += ocfs2_xattr_entry_real_size(0, acl_len);\n \t\t}\n \t}\n \n@@ -683,14 +676,33 @@ int ocfs2_calc_xattr_init(struct inode *dir,\n \t\t\t\t\t\t\t new_clusters);\n \t\t*want_clusters += new_clusters;\n \t}\n-\tif (osb-\u003es_mount_opt \u0026 OCFS2_MOUNT_POSIX_ACL \u0026\u0026\n-\t acl_len \u003e OCFS2_XATTR_INLINE_SIZE) {\n-\t\t/* for directory, it has DEFAULT and ACCESS two types of acls */\n-\t\tnew_clusters = (S_ISDIR(mode) ? 2 : 1) *\n-\t\t\t\tocfs2_clusters_for_bytes(dir-\u003ei_sb, acl_len);\n-\t\t*xattr_credits += ocfs2_clusters_to_blocks(dir-\u003ei_sb,\n-\t\t\t\t\t\t\t new_clusters);\n-\t\t*want_clusters += new_clusters;\n+\tif (osb-\u003es_mount_opt \u0026 OCFS2_MOUNT_POSIX_ACL) {\n+\t\tif (acl_state-\u003edefault_acl \u0026\u0026 S_ISDIR(mode)) {\n+\t\t\tacl_len = acl_state-\u003edefault_acl-\u003ea_count *\n+\t\t\t\t sizeof(struct ocfs2_acl_entry);\n+\t\t\tif (acl_len \u003e OCFS2_XATTR_INLINE_SIZE) {\n+\t\t\t\tnew_clusters =\n+\t\t\t\t\tocfs2_clusters_for_bytes(dir-\u003ei_sb,\n+\t\t\t\t\t\t\t\t acl_len);\n+\t\t\t\t*xattr_credits +=\n+\t\t\t\t\tocfs2_clusters_to_blocks(dir-\u003ei_sb,\n+\t\t\t\t\t\t\t\t new_clusters);\n+\t\t\t\t*want_clusters += new_clusters;\n+\t\t\t}\n+\t\t}\n+\t\tif (acl_state-\u003eacl) {\n+\t\t\tacl_len = acl_state-\u003eacl-\u003ea_count *\n+\t\t\t\t sizeof(struct ocfs2_acl_entry);\n+\t\t\tif (acl_len \u003e OCFS2_XATTR_INLINE_SIZE) {\n+\t\t\t\tnew_clusters =\n+\t\t\t\t\tocfs2_clusters_for_bytes(dir-\u003ei_sb,\n+\t\t\t\t\t\t\t\t acl_len);\n+\t\t\t\t*xattr_credits +=\n+\t\t\t\t\tocfs2_clusters_to_blocks(dir-\u003ei_sb,\n+\t\t\t\t\t\t\t\t new_clusters);\n+\t\t\t\t*want_clusters += new_clusters;\n+\t\t\t}\n+\t\t}\n \t}\n \n \treturn ret;\n@@ -3483,9 +3495,10 @@ static int __ocfs2_xattr_set_handle(struct inode *inode,\n }\n \n /*\n- * This function only called duing creating inode\n- * for init security/acl xattrs of the new inode.\n- * All transanction credits have been reserved in mknod.\n+ * This helper is only for setting initial ACL or security xattrs on an inode\n+ * that is still unpublished, unhashed, and unattached to a dentry.\n+ * Ordinary xattr updates must use ocfs2_xattr_set().\n+ * All transaction credits have been reserved in mknod or symlink callers.\n */\n int ocfs2_xattr_set_handle(handle_t *handle,\n \t\t\t struct inode *inode,\n@@ -3542,8 +3555,6 @@ int ocfs2_xattr_set_handle(handle_t *handle,\n \txis.inode_bh = xbs.inode_bh = di_bh;\n \tdi = (struct ocfs2_dinode *)di_bh-\u003eb_data;\n \n-\tdown_write(\u0026OCFS2_I(inode)-\u003eip_xattr_sem);\n-\n \tret = ocfs2_xattr_ibody_find(inode, name_index, name, \u0026xis);\n \tif (ret)\n \t\tgoto cleanup;\n@@ -3556,7 +3567,6 @@ int ocfs2_xattr_set_handle(handle_t *handle,\n \tret = __ocfs2_xattr_set_handle(inode, di, \u0026xi, \u0026xis, \u0026xbs, \u0026ctxt);\n \n cleanup:\n-\tup_write(\u0026OCFS2_I(inode)-\u003eip_xattr_sem);\n \tbrelse(xbs.xattr_bh);\n \tocfs2_xattr_bucket_free(xbs.bucket);\n \n@@ -7257,6 +7267,7 @@ int ocfs2_init_security_and_acl(struct inode *dir,\n {\n \tint ret = 0;\n \tstruct buffer_head *dir_bh = NULL;\n+\tstruct ocfs2_acl_state acl_state = { 0 };\n \n \tret = ocfs2_init_security_get(inode, dir, qstr, NULL);\n \tif (ret) {\n@@ -7269,10 +7280,17 @@ int ocfs2_init_security_and_acl(struct inode *dir,\n \t\tmlog_errno(ret);\n \t\tgoto leave;\n \t}\n-\tret = ocfs2_init_acl(NULL, inode, dir, NULL, dir_bh, NULL, NULL);\n+\n+\tret = ocfs2_acl_init_prepare(inode, dir, dir_bh, \u0026acl_state);\n+\tif (ret)\n+\t\tgoto unlock;\n+\n+\tret = ocfs2_init_acl(NULL, inode, NULL, NULL, NULL, \u0026acl_state);\n \tif (ret)\n \t\tmlog_errno(ret);\n \n+unlock:\n+\tocfs2_acl_init_release(\u0026acl_state);\n \tocfs2_inode_unlock(dir, 0);\n \tbrelse(dir_bh);\n leave:\ndiff --git a/fs/ocfs2/xattr.h b/fs/ocfs2/xattr.h\nindex 65e9aa7439199..5cdd6c6b40064 100644\n--- a/fs/ocfs2/xattr.h\n+++ b/fs/ocfs2/xattr.h\n@@ -55,9 +55,12 @@ int ocfs2_init_security_set(handle_t *, struct inode *,\n int ocfs2_calc_security_init(struct inode *,\n \t\t\t struct ocfs2_security_xattr_info *,\n \t\t\t int *, int *, struct ocfs2_alloc_context **);\n-int ocfs2_calc_xattr_init(struct inode *, struct buffer_head *,\n-\t\t\t umode_t, struct ocfs2_security_xattr_info *,\n-\t\t\t int *, int *, int *);\n+\n+struct ocfs2_acl_state;\n+int ocfs2_calc_xattr_init(struct inode *dir, umode_t mode,\n+\t\t\t struct ocfs2_security_xattr_info *si,\n+\t\t\t int *want_clusters, int *xattr_credits,\n+\t\t\t int *want_meta, struct ocfs2_acl_state *acl_state);\n \n /*\n * xattrs can live inside an inode, as part of an external xattr block,\n"
} |
| 2/1 | 2026/07/30 08:07 | agent | patch-evaluator |
2mModel:best-expensive Args: null Results: {
"EnableConfigs": [
"OCFS2_FS",
"CONFIGFS_FS"
],
"FocusSymbols": [
"ocfs2_init_security_and_acl",
"ocfs2_init_acl",
"ocfs2_acl_init_prepare",
"ocfs2_calc_xattr_init",
"ocfs2_xattr_set_handle"
],
"Reasoning": "The patch refactors ACL initialization during inode creation in OCFS2 to prevent deadlocks. It modifies how ACLs are calculated and set for new inodes (e.g., via mknod, mkdir, create, symlink, reflink). The changes are in core OCFS2 logic and are reachable via standard VFS syscalls when operating on an OCFS2 filesystem.",
"WorthFuzzing": true
}Instruction: You are an expert Linux kernel maintainer. Your job is to review a provided patch series and determine if it makes functional changes to the kernel that should be fuzzed. IMPORTANT: The changes have ALREADY been applied and committed as the HEAD commit in your workspace. Do NOT rely on your internal knowledge of the kernel. You must actively use your code access tools to examine the actual source code and confirm any assumptions. Return WorthFuzzing=false if the patch only contains: - Modifications to Documentation/, Kconfig files, or code comments. - Purely decorative changes, such as logging (e.g., pr_err, printk) or tracepoints. - Changes to numeric constants or macros that do not functionally alter execution flow. - Code paths that are impossible to reach in virtualized environments like GCE or QEMU, even when utilizing software-emulated hardware (e.g., usb gadget, mac80211_hwsim). - Code in vendor-specific PCIe switch, SmartNIC, or GPU drivers (e.g., mlxsw, pds_core, qed, ionic, amdgpu) that require physical PCIe hardware cards not emulated in standard QEMU. - Driver .remove, .shutdown, or pci_unregister_driver teardown callbacks (e.g., igb_remove) that are executed only during PCI hot-unplug or sysfs driver unbind operations. If it modifies reachable core kernel logic, drivers, or architectures, use your code search tools to verify the code can be executed, then return WorthFuzzing=true. When returning WorthFuzzing=true, you MUST ALSO: 1. Extract any specific kernel functions that should be heavily fuzzed into FocusSymbols. Avoid listing generic hot-path functions to prevent skewed test distributions. Prefer non-static, non-inlined API entrypoint functions over internal static helper functions (which are inlined by the compiler and do not have distinct symbol addresses). 2. Identify any specific CONFIG_ options required to properly test this new/modified feature. Go and look into the Kconfig files and check for ifdefs around the code, do not make assumptions. Also check "depends on" lines in Kconfig to include any non-standard parent subsystem configs needed for Kbuild to compile the code statically into vmlinux. List them in the EnableConfigs output array, and DO NOT add a 'CONFIG_' prefix (e.g., return "NET_IPV4" instead of "CONFIG_NET_IPV4"). Prefer calling several tools at the same time to save round-trips. Use set-results tool to provide results of the analysis. It must be called exactly once before the final reply. Ignore results of this tool. Prompt: For your convenience, here is the diff of the changes:
commit 728343b35039e067547debc061e2cdabe1eb06cc
Author: syz-cluster <triage@syzkaller.com>
Date: Thu Jul 30 08:07:28 2026 +0000
syz-cluster: applied patch under review
diff --git a/fs/ocfs2/acl.c b/fs/ocfs2/acl.c
index af1e2cedb217f..090ec60fb576a 100644
--- a/fs/ocfs2/acl.c
+++ b/fs/ocfs2/acl.c
@@ -110,8 +110,7 @@ static void *ocfs2_acl_to_xattr(const struct posix_acl *acl, size_t *size)
return ocfs2_acl;
}
-static struct posix_acl *ocfs2_get_acl_nolock(struct inode *inode,
- int type,
+static struct posix_acl *ocfs2_get_acl_nolock(struct inode *inode, int type,
struct buffer_head *di_bh)
{
int name_index;
@@ -349,63 +348,105 @@ int ocfs2_acl_chmod(struct inode *inode, struct buffer_head *bh)
* Initialize the ACLs of a new inode. If parent directory has default ACL,
* then clone to new inode. Called from ocfs2_mknod.
*/
-int ocfs2_init_acl(handle_t *handle,
- struct inode *inode,
- struct inode *dir,
- struct buffer_head *di_bh,
- struct buffer_head *dir_bh,
- struct ocfs2_alloc_context *meta_ac,
- struct ocfs2_alloc_context *data_ac)
+void ocfs2_acl_init_release(struct ocfs2_acl_state *state)
+{
+ posix_acl_release(state->default_acl);
+ posix_acl_release(state->acl);
+ state->default_acl = NULL;
+ state->acl = NULL;
+}
+
+int ocfs2_acl_init_prepare(struct inode *inode, struct inode *dir,
+ struct buffer_head *dir_bh,
+ struct ocfs2_acl_state *state)
{
struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
- struct posix_acl *acl = NULL;
- int ret = 0, ret2;
- umode_t mode;
-
- if (!S_ISLNK(inode->i_mode)) {
- if (osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL) {
- down_read(&OCFS2_I(dir)->ip_xattr_sem);
- acl = ocfs2_get_acl_nolock(dir, ACL_TYPE_DEFAULT,
- dir_bh);
- up_read(&OCFS2_I(dir)->ip_xattr_sem);
- if (IS_ERR(acl))
- return PTR_ERR(acl);
+ int ret = 0;
+
+ state->default_acl = NULL;
+ state->acl = NULL;
+ state->mode = inode->i_mode;
+
+ if (S_ISLNK(inode->i_mode))
+ return 0;
+
+ if (osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL) {
+ down_read(&OCFS2_I(dir)->ip_xattr_sem);
+ state->default_acl =
+ ocfs2_get_acl_nolock(dir, ACL_TYPE_DEFAULT, dir_bh);
+ up_read(&OCFS2_I(dir)->ip_xattr_sem);
+ if (IS_ERR(state->default_acl)) {
+ ret = PTR_ERR(state->default_acl);
+ state->default_acl = NULL;
+ return ret;
}
- if (!acl) {
- mode = inode->i_mode & ~current_umask();
- ret = ocfs2_acl_set_mode(inode, di_bh, handle, mode);
- if (ret) {
- mlog_errno(ret);
+ if (state->default_acl) {
+ state->acl = posix_acl_dup(state->default_acl);
+ if (!state->acl) {
+ ret = -ENOMEM;
goto cleanup;
}
+ ret = __posix_acl_create(&state->acl, GFP_NOFS,
+ &state->mode);
+ if (ret < 0)
+ goto cleanup;
+ if (ret == 0) {
+ posix_acl_release(state->acl);
+ state->acl = NULL;
+ }
+ if (!S_ISDIR(inode->i_mode)) {
+ posix_acl_release(state->default_acl);
+ state->default_acl = NULL;
+ }
+ } else {
+ state->mode &= ~current_umask();
}
+ } else {
+ state->mode &= ~current_umask();
}
- if ((osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL) && acl) {
- if (S_ISDIR(inode->i_mode)) {
+
+ return 0;
+cleanup:
+ ocfs2_acl_init_release(state);
+ return ret;
+}
+
+int ocfs2_init_acl(handle_t *handle, struct inode *inode,
+ struct buffer_head *di_bh,
+ struct ocfs2_alloc_context *meta_ac,
+ struct ocfs2_alloc_context *data_ac,
+ struct ocfs2_acl_state *state)
+{
+ struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
+ int ret = 0;
+
+ if (S_ISLNK(inode->i_mode))
+ return 0;
+
+ if (osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL) {
+ if (S_ISDIR(inode->i_mode) && state->default_acl) {
ret = ocfs2_set_acl(handle, inode, di_bh,
- ACL_TYPE_DEFAULT, acl,
- meta_ac, data_ac);
+ ACL_TYPE_DEFAULT,
+ state->default_acl, meta_ac,
+ data_ac);
if (ret)
- goto cleanup;
+ return ret;
}
- mode = inode->i_mode;
- ret = __posix_acl_create(&acl, GFP_NOFS, &mode);
- if (ret < 0)
- return ret;
+ }
- ret2 = ocfs2_acl_set_mode(inode, di_bh, handle, mode);
- if (ret2) {
- mlog_errno(ret2);
- ret = ret2;
- goto cleanup;
- }
- if (ret > 0) {
- ret = ocfs2_set_acl(handle, inode,
- di_bh, ACL_TYPE_ACCESS,
- acl, meta_ac, data_ac);
+ ret = ocfs2_acl_set_mode(inode, di_bh, handle, state->mode);
+ if (ret) {
+ mlog_errno(ret);
+ return ret;
+ }
+
+ if (osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL) {
+ if (state->acl) {
+ ret = ocfs2_set_acl(handle, inode, di_bh,
+ ACL_TYPE_ACCESS, state->acl,
+ meta_ac, data_ac);
}
}
-cleanup:
- posix_acl_release(acl);
+
return ret;
}
diff --git a/fs/ocfs2/acl.h b/fs/ocfs2/acl.h
index 667c6f03fa606..a91f9ce278d6d 100644
--- a/fs/ocfs2/acl.h
+++ b/fs/ocfs2/acl.h
@@ -20,9 +20,20 @@ struct posix_acl *ocfs2_iop_get_acl(struct inode *inode, int type, bool rcu);
int ocfs2_iop_set_acl(struct mnt_idmap *idmap, struct dentry *dentry,
struct posix_acl *acl, int type);
extern int ocfs2_acl_chmod(struct inode *, struct buffer_head *);
-extern int ocfs2_init_acl(handle_t *, struct inode *, struct inode *,
- struct buffer_head *, struct buffer_head *,
- struct ocfs2_alloc_context *,
- struct ocfs2_alloc_context *);
+struct ocfs2_acl_state {
+ struct posix_acl *default_acl;
+ struct posix_acl *acl;
+ umode_t mode;
+};
+
+int ocfs2_acl_init_prepare(struct inode *inode, struct inode *dir,
+ struct buffer_head *dir_bh,
+ struct ocfs2_acl_state *state);
+void ocfs2_acl_init_release(struct ocfs2_acl_state *state);
+int ocfs2_init_acl(handle_t *handle, struct inode *inode,
+ struct buffer_head *di_bh,
+ struct ocfs2_alloc_context *meta_ac,
+ struct ocfs2_alloc_context *data_ac,
+ struct ocfs2_acl_state *state);
#endif /* OCFS2_ACL_H */
diff --git a/fs/ocfs2/namei.c b/fs/ocfs2/namei.c
index 1277666c77cd2..ea37a50580890 100644
--- a/fs/ocfs2/namei.c
+++ b/fs/ocfs2/namei.c
@@ -256,6 +256,7 @@ static int ocfs2_mknod(struct mnt_idmap *idmap,
sigset_t oldset;
int did_block_signals = 0;
struct ocfs2_dentry_lock *dl = NULL;
+ struct ocfs2_acl_state acl_state = { 0 };
trace_ocfs2_mknod(dir, dentry, dentry->d_name.len, dentry->d_name.name,
(unsigned long long)OCFS2_I(dir)->ip_blkno,
@@ -330,10 +331,14 @@ static int ocfs2_mknod(struct mnt_idmap *idmap,
}
}
+ status = ocfs2_acl_init_prepare(inode, dir, parent_fe_bh, &acl_state);
+ if (status < 0)
+ goto leave;
+
/* calculate meta data/clusters for setting security and acl xattr */
- status = ocfs2_calc_xattr_init(dir, parent_fe_bh, mode,
- &si, &want_clusters,
- &xattr_credits, &want_meta);
+ status = ocfs2_calc_xattr_init(dir, mode, &si, &want_clusters,
+ &xattr_credits, &want_meta,
+ &acl_state);
if (status < 0) {
mlog_errno(status);
goto leave;
@@ -411,8 +416,8 @@ static int ocfs2_mknod(struct mnt_idmap *idmap,
inc_nlink(dir);
}
- status = ocfs2_init_acl(handle, inode, dir, new_fe_bh, parent_fe_bh,
- meta_ac, data_ac);
+ status = ocfs2_init_acl(handle, inode, new_fe_bh, meta_ac, data_ac,
+ &acl_state);
if (status < 0) {
mlog_errno(status);
@@ -477,6 +482,8 @@ static int ocfs2_mknod(struct mnt_idmap *idmap,
brelse(parent_fe_bh);
kfree(si.value);
+ ocfs2_acl_init_release(&acl_state);
+
ocfs2_free_dir_lookup_result(&lookup);
if (inode_ac)
diff --git a/fs/ocfs2/xattr.c b/fs/ocfs2/xattr.c
index fcddd3c13acdd..86f0293681fcc 100644
--- a/fs/ocfs2/xattr.c
+++ b/fs/ocfs2/xattr.c
@@ -611,13 +611,10 @@ int ocfs2_calc_security_init(struct inode *dir,
return ret;
}
-int ocfs2_calc_xattr_init(struct inode *dir,
- struct buffer_head *dir_bh,
- umode_t mode,
+int ocfs2_calc_xattr_init(struct inode *dir, umode_t mode,
struct ocfs2_security_xattr_info *si,
- int *want_clusters,
- int *xattr_credits,
- int *want_meta)
+ int *want_clusters, int *xattr_credits,
+ int *want_meta, struct ocfs2_acl_state *acl_state)
{
int ret = 0;
struct ocfs2_super *osb = OCFS2_SB(dir->i_sb);
@@ -628,19 +625,15 @@ int ocfs2_calc_xattr_init(struct inode *dir,
si->value_len);
if (osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL) {
- down_read(&OCFS2_I(dir)->ip_xattr_sem);
- acl_len = ocfs2_xattr_get_nolock(dir, dir_bh,
- OCFS2_XATTR_INDEX_POSIX_ACL_DEFAULT,
- "", NULL, 0);
- up_read(&OCFS2_I(dir)->ip_xattr_sem);
- if (acl_len > 0) {
- a_size = ocfs2_xattr_entry_real_size(0, acl_len);
- if (S_ISDIR(mode))
- a_size <<= 1;
- } else if (acl_len != 0 && acl_len != -ENODATA) {
- ret = acl_len;
- mlog_errno(ret);
- return ret;
+ if (acl_state->default_acl && S_ISDIR(mode)) {
+ acl_len = acl_state->default_acl->a_count *
+ sizeof(struct ocfs2_acl_entry);
+ a_size += ocfs2_xattr_entry_real_size(0, acl_len);
+ }
+ if (acl_state->acl) {
+ acl_len = acl_state->acl->a_count *
+ sizeof(struct ocfs2_acl_entry);
+ a_size += ocfs2_xattr_entry_real_size(0, acl_len);
}
}
@@ -683,14 +676,33 @@ int ocfs2_calc_xattr_init(struct inode *dir,
new_clusters);
*want_clusters += new_clusters;
}
- if (osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL &&
- acl_len > OCFS2_XATTR_INLINE_SIZE) {
- /* for directory, it has DEFAULT and ACCESS two types of acls */
- new_clusters = (S_ISDIR(mode) ? 2 : 1) *
- ocfs2_clusters_for_bytes(dir->i_sb, acl_len);
- *xattr_credits += ocfs2_clusters_to_blocks(dir->i_sb,
- new_clusters);
- *want_clusters += new_clusters;
+ if (osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL) {
+ if (acl_state->default_acl && S_ISDIR(mode)) {
+ acl_len = acl_state->default_acl->a_count *
+ sizeof(struct ocfs2_acl_entry);
+ if (acl_len > OCFS2_XATTR_INLINE_SIZE) {
+ new_clusters =
+ ocfs2_clusters_for_bytes(dir->i_sb,
+ acl_len);
+ *xattr_credits +=
+ ocfs2_clusters_to_blocks(dir->i_sb,
+ new_clusters);
+ *want_clusters += new_clusters;
+ }
+ }
+ if (acl_state->acl) {
+ acl_len = acl_state->acl->a_count *
+ sizeof(struct ocfs2_acl_entry);
+ if (acl_len > OCFS2_XATTR_INLINE_SIZE) {
+ new_clusters =
+ ocfs2_clusters_for_bytes(dir->i_sb,
+ acl_len);
+ *xattr_credits +=
+ ocfs2_clusters_to_blocks(dir->i_sb,
+ new_clusters);
+ *want_clusters += new_clusters;
+ }
+ }
}
return ret;
@@ -3483,9 +3495,10 @@ static int __ocfs2_xattr_set_handle(struct inode *inode,
}
/*
- * This function only called duing creating inode
- * for init security/acl xattrs of the new inode.
- * All transanction credits have been reserved in mknod.
+ * This helper is only for setting initial ACL or security xattrs on an inode
+ * that is still unpublished, unhashed, and unattached to a dentry.
+ * Ordinary xattr updates must use ocfs2_xattr_set().
+ * All transaction credits have been reserved in mknod or symlink callers.
*/
int ocfs2_xattr_set_handle(handle_t *handle,
struct inode *inode,
@@ -3542,8 +3555,6 @@ int ocfs2_xattr_set_handle(handle_t *handle,
xis.inode_bh = xbs.inode_bh = di_bh;
di = (struct ocfs2_dinode *)di_bh->b_data;
- down_write(&OCFS2_I(inode)->ip_xattr_sem);
-
ret = ocfs2_xattr_ibody_find(inode, name_index, name, &xis);
if (ret)
goto cleanup;
@@ -3556,7 +3567,6 @@ int ocfs2_xattr_set_handle(handle_t *handle,
ret = __ocfs2_xattr_set_handle(inode, di, &xi, &xis, &xbs, &ctxt);
cleanup:
- up_write(&OCFS2_I(inode)->ip_xattr_sem);
brelse(xbs.xattr_bh);
ocfs2_xattr_bucket_free(xbs.bucket);
@@ -7257,6 +7267,7 @@ int ocfs2_init_security_and_acl(struct inode *dir,
{
int ret = 0;
struct buffer_head *dir_bh = NULL;
+ struct ocfs2_acl_state acl_state = { 0 };
ret = ocfs2_init_security_get(inode, dir, qstr, NULL);
if (ret) {
@@ -7269,10 +7280,17 @@ int ocfs2_init_security_and_acl(struct inode *dir,
mlog_errno(ret);
goto leave;
}
- ret = ocfs2_init_acl(NULL, inode, dir, NULL, dir_bh, NULL, NULL);
+
+ ret = ocfs2_acl_init_prepare(inode, dir, dir_bh, &acl_state);
+ if (ret)
+ goto unlock;
+
+ ret = ocfs2_init_acl(NULL, inode, NULL, NULL, NULL, &acl_state);
if (ret)
mlog_errno(ret);
+unlock:
+ ocfs2_acl_init_release(&acl_state);
ocfs2_inode_unlock(dir, 0);
brelse(dir_bh);
leave:
diff --git a/fs/ocfs2/xattr.h b/fs/ocfs2/xattr.h
index 65e9aa7439199..5cdd6c6b40064 100644
--- a/fs/ocfs2/xattr.h
+++ b/fs/ocfs2/xattr.h
@@ -55,9 +55,12 @@ int ocfs2_init_security_set(handle_t *, struct inode *,
int ocfs2_calc_security_init(struct inode *,
struct ocfs2_security_xattr_info *,
int *, int *, struct ocfs2_alloc_context **);
-int ocfs2_calc_xattr_init(struct inode *, struct buffer_head *,
- umode_t, struct ocfs2_security_xattr_info *,
- int *, int *, int *);
+
+struct ocfs2_acl_state;
+int ocfs2_calc_xattr_init(struct inode *dir, umode_t mode,
+ struct ocfs2_security_xattr_info *si,
+ int *want_clusters, int *xattr_credits,
+ int *want_meta, struct ocfs2_acl_state *acl_state);
/*
* xattrs can live inside an inode, as part of an external xattr block,
|
| 3/2 | 2026/07/30 08:07 | llm | patch-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 7569 output: 35 thoughts: 299 Thoughts: **Refactoring OCFS2 ACL Initialization** Okay, so I'm looking at a patch that's touching some core OCFS2 files: `acl.c`, `acl.h`, `namei.c`, and `xattr.c`. My initial read is that this is focused on refactoring ACL initialization within the filesystem. Specifically, it seems like they're addressing a locking issue. I see they're modifying the `ocfs2_init_acl` function and related code. Apparently, there was a problem with `ocfs2_init_acl` trying to acquire the `ip_xattr_sem` lock. Now, I see the introduction of `ocfs2_acl_init_prepare` and `ocfs2_acl_init_release` functions, which suggests a more granular control over the ACL initialization process. They've also updated `ocfs2_calc_xattr_init` to use a `struct ocfs2_acl_state *acl_state`, likely to pass state information around. And, it seems like they've removed `down_write(&OCFS2_I(inode)->ip_xattr_sem)` from `ocfs2_xattr_set_handle`. This is a pretty significant change. My immediate question is: is this code reachable, and is it functional? OCFS2 is a file system, right? Yes, Oracle Cluster File System 2. So, definitely reachable through standard syscalls like `mkdir`, `mknod`, and `creat` – the usual suspects. I need to figure out where this ACL initialization code is actually used. Time to check the Kconfig. I'll fire up `default_api:grepper` to locate the OCFS2 Kconfig to be sure that it's configured and enabled. I need to understand what's triggering the new ACL initialization flow. |
| 4/2 | 2026/07/30 08:08 | tool | grepper |
0mArgs:{
"Expression": "config OCFS2_FS",
"PathPrefix": "fs/ocfs2/Kconfig"
}Results: {
"Output": "fs/ocfs2/Kconfig-1-# SPDX-License-Identifier: GPL-2.0-only\nfs/ocfs2/Kconfig:2:config OCFS2_FS\nfs/ocfs2/Kconfig-3-\ttristate \"OCFS2 file system support\"\n--\nfs/ocfs2/Kconfig-27-\nfs/ocfs2/Kconfig:28:config OCFS2_FS_O2CB\nfs/ocfs2/Kconfig-29-\ttristate \"O2CB Kernelspace Clustering\"\n--\nfs/ocfs2/Kconfig-41-\nfs/ocfs2/Kconfig:42:config OCFS2_FS_USERSPACE_CLUSTER\nfs/ocfs2/Kconfig-43-\ttristate \"OCFS2 Userspace Clustering\"\n--\nfs/ocfs2/Kconfig-53-\nfs/ocfs2/Kconfig:54:config OCFS2_FS_STATS\nfs/ocfs2/Kconfig-55-\tbool \"OCFS2 statistics\"\n"
} |
| 5/2 | 2026/07/30 08:08 | llm | patch-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 8574 output: 30 thoughts: 26 Thoughts: Here's my take on those thoughts, tailored for an expert audience: **OCFS2 Configuration Dive** Alright, so `CONFIG_OCFS2_FS` is the central configuration option for the OCFS2 filesystem. My immediate instinct is to check for dependencies. I know this module is pretty self-contained, but I always want to make sure I haven't missed any nuanced requirements lurking within other subsystems. I'll need to quickly confirm that it stands alone or if there are any subtle interactions with other kernel features that would influence its behavior or my testing strategy. A quick scan of the Kconfig should reveal any flags I need to consider for enabling it in this scenario. |
| 6/2 | 2026/07/30 08:08 | tool | grepper |
0mArgs:{
"Expression": "depends on",
"PathPrefix": "fs/ocfs2/Kconfig"
}Results: {
"Output": "fs/ocfs2/Kconfig=2=config OCFS2_FS\nfs/ocfs2/Kconfig-3-\ttristate \"OCFS2 file system support\"\nfs/ocfs2/Kconfig:4:\tdepends on INET \u0026\u0026 SYSFS \u0026\u0026 CONFIGFS_FS\nfs/ocfs2/Kconfig-5-\tselect BUFFER_HEAD\n--\nfs/ocfs2/Kconfig=28=config OCFS2_FS_O2CB\nfs/ocfs2/Kconfig-29-\ttristate \"O2CB Kernelspace Clustering\"\nfs/ocfs2/Kconfig:30:\tdepends on OCFS2_FS\nfs/ocfs2/Kconfig-31-\tdefault y\n--\nfs/ocfs2/Kconfig=42=config OCFS2_FS_USERSPACE_CLUSTER\nfs/ocfs2/Kconfig-43-\ttristate \"OCFS2 Userspace Clustering\"\nfs/ocfs2/Kconfig:44:\tdepends on OCFS2_FS \u0026\u0026 DLM\nfs/ocfs2/Kconfig-45-\tdefault y\n--\nfs/ocfs2/Kconfig=54=config OCFS2_FS_STATS\nfs/ocfs2/Kconfig-55-\tbool \"OCFS2 statistics\"\nfs/ocfs2/Kconfig:56:\tdepends on OCFS2_FS \u0026\u0026 DEBUG_FS\nfs/ocfs2/Kconfig-57-\tdefault y\n--\nfs/ocfs2/Kconfig=62=config OCFS2_DEBUG_MASKLOG\nfs/ocfs2/Kconfig-63-\tbool \"OCFS2 logging support\"\nfs/ocfs2/Kconfig:64:\tdepends on OCFS2_FS\nfs/ocfs2/Kconfig-65-\tdefault y\n--\nfs/ocfs2/Kconfig=72=config OCFS2_DEBUG_FS\nfs/ocfs2/Kconfig-73-\tbool \"OCFS2 expensive checks\"\nfs/ocfs2/Kconfig:74:\tdepends on OCFS2_FS\nfs/ocfs2/Kconfig-75-\tdefault n\n"
} |
| 7/2 | 2026/07/30 08:08 | llm | patch-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 9308 output: 39 thoughts: 45 Thoughts: **OCFS2 and ACLs: A Quick Look** Okay, so looking at this code, it appears that enabling `OCFS2_FS` is contingent on `INET`, `SYSFS`, and `CONFIGFS_FS` being active. That makes sense, given OCFS2's distributed nature and likely dependence on networking and configuration infrastructure. Now, the main question is: do we need to do something in regard to ACL support? The patch references that, so I need to check the ACL configuration options for OCFS2 specifically. Is there a dedicated ACL option for OCFS2 within the build system, or does it leverage generic ACL support? That's what I need to quickly determine to ensure the patch is applied or handled correctly. |
| 8/2 | 2026/07/30 08:08 | tool | grepper |
0mError:no matches Args: {
"Expression": "config OCFS2_FS_POSIX_ACL",
"PathPrefix": "fs/ocfs2/Kconfig"
}Results: {
"error": "no matches"
} |
| 9/2 | 2026/07/30 08:08 | llm | patch-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 9564 output: 29 thoughts: 16 Thoughts: Okay, here's my summary, taking on the persona you requested: **Assessing OCFS2 ACL Configuration** Alright, let's get down to brass tacks. I need to quickly ascertain whether or not we have any Access Control Lists (ACLs) configured within the OCFS2 environment. This is a pretty fundamental check before I start digging into anything else related to file permissions or security on this cluster. Understanding the presence or absence of ACLs sets the baseline for interpreting how file access is being managed. So, first things first, let's see if there's any ACL configuration active within OCFS2. This is essential for understanding the environment's security posture. |
| 10/2 | 2026/07/30 08:08 | tool | grepper |
0mArgs:{
"Expression": "ACL",
"PathPrefix": "fs/ocfs2/Kconfig"
}Results: {
"Output": "fs/ocfs2/Kconfig=2=config OCFS2_FS\n--\nfs/ocfs2/Kconfig-9-\tselect QUOTA_TREE\nfs/ocfs2/Kconfig:10:\tselect FS_POSIX_ACL\nfs/ocfs2/Kconfig-11-\tselect LEGACY_DIRECT_IO\n"
} |
| 11/2 | 2026/07/30 08:08 | llm | patch-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 9847 output: 37 thoughts: 300 Thoughts: **OCFS2 ACL Activation** Okay, so the text is saying that selecting `OCFS2_FS` implies `FS_POSIX_ACL`. That simplifies things; we just need to ensure `OCFS2_FS` is enabled. Next, I need to understand the scope of the patch by examining the modified functions. It looks like the patch touches a few key areas: `ocfs2_acl_init_release`, `ocfs2_acl_init_prepare`, `ocfs2_init_acl`, `ocfs2_mknod`, `ocfs2_calc_xattr_init`, `ocfs2_xattr_set_handle`, and `ocfs2_init_security_and_acl`. Now, I need to quickly determine whether these functions are exported for use elsewhere or are static to the OCFS2 module. After that, I can see: * `ocfs2_acl_init_release` is non-static * `ocfs2_acl_init_prepare` is non-static * `ocfs2_init_acl` is non-static * `ocfs2_mknod` is static, which is interesting. However, it is probably part of `ocfs2_dir_inode_operations`, which changes how it's handled. * `ocfs2_calc_xattr_init` is non-static * `ocfs2_xattr_set_handle` is non-static * `ocfs2_init_security_and_acl` is non-static I need to quickly confirm that `ocfs2_mknod` is indeed static to the module. I should probably check `fs/ocfs2/namei.c` to be sure. |
| 12/2 | 2026/07/30 08:08 | tool | grepper |
0mArgs:{
"Expression": "ocfs2_mknod",
"PathPrefix": "fs/ocfs2/namei.c"
}Results: {
"Output": "fs/ocfs2/namei.c-55-\nfs/ocfs2/namei.c:56:static int ocfs2_mknod_locked(struct ocfs2_super *osb,\nfs/ocfs2/namei.c-57-\t\t\t struct inode *dir,\n--\nfs/ocfs2/namei.c=215=static void ocfs2_cleanup_add_entry_failure(struct ocfs2_super *osb,\n--\nfs/ocfs2/namei.c-229-\nfs/ocfs2/namei.c:230:static int ocfs2_mknod(struct mnt_idmap *idmap,\nfs/ocfs2/namei.c-231-\t\t struct inode *dir,\n--\nfs/ocfs2/namei.c-260-\nfs/ocfs2/namei.c:261:\ttrace_ocfs2_mknod(dir, dentry, dentry-\u003ed_name.len, dentry-\u003ed_name.name,\nfs/ocfs2/namei.c-262-\t\t\t (unsigned long long)OCFS2_I(dir)-\u003eip_blkno,\n--\nfs/ocfs2/namei.c-369-\nfs/ocfs2/namei.c:370:\thandle = ocfs2_start_trans(osb, ocfs2_mknod_credits(osb-\u003esb,\nfs/ocfs2/namei.c-371-\t\t\t\t\t\t\t S_ISDIR(mode),\n--\nfs/ocfs2/namei.c-389-\t/* do the real work now. */\nfs/ocfs2/namei.c:390:\tstatus = ocfs2_mknod_locked(osb, dir, inode, dev,\nfs/ocfs2/namei.c-391-\t\t\t\t \u0026new_fe_bh, parent_fe_bh, handle,\n--\nfs/ocfs2/namei.c-517-\nfs/ocfs2/namei.c:518:static int __ocfs2_mknod_locked(struct inode *dir,\nfs/ocfs2/namei.c-519-\t\t\t\tstruct inode *inode,\n--\nfs/ocfs2/namei.c-629-\nfs/ocfs2/namei.c:630:static int ocfs2_mknod_locked(struct ocfs2_super *osb,\nfs/ocfs2/namei.c-631-\t\t\t struct inode *dir,\n--\nfs/ocfs2/namei.c-652-\nfs/ocfs2/namei.c:653:\treturn __ocfs2_mknod_locked(dir, inode, dev, new_fe_bh,\nfs/ocfs2/namei.c-654-\t\t\t\t handle, inode_ac, fe_blkno,\n--\nfs/ocfs2/namei.c=658=static struct dentry *ocfs2_mkdir(struct mnt_idmap *idmap,\n--\nfs/ocfs2/namei.c-666-\t\t\t OCFS2_I(dir)-\u003eip_blkno, mode);\nfs/ocfs2/namei.c:667:\tret = ocfs2_mknod(\u0026nop_mnt_idmap, dir, dentry, mode | S_IFDIR, 0);\nfs/ocfs2/namei.c-668-\tif (ret)\n--\nfs/ocfs2/namei.c=674=static int ocfs2_create(struct mnt_idmap *idmap,\n--\nfs/ocfs2/namei.c-683-\t\t\t (unsigned long long)OCFS2_I(dir)-\u003eip_blkno, mode);\nfs/ocfs2/namei.c:684:\tret = ocfs2_mknod(\u0026nop_mnt_idmap, dir, dentry, mode | S_IFREG, 0);\nfs/ocfs2/namei.c-685-\tif (ret)\n--\nfs/ocfs2/namei.c=1814=static int ocfs2_symlink(struct mnt_idmap *idmap,\n--\nfs/ocfs2/namei.c-1956-\nfs/ocfs2/namei.c:1957:\tstatus = ocfs2_mknod_locked(osb, dir, inode,\nfs/ocfs2/namei.c-1958-\t\t\t\t 0, \u0026new_fe_bh, parent_fe_bh, handle,\n--\nfs/ocfs2/namei.c=2521=int ocfs2_create_inode_in_orphan(struct inode *dir,\n--\nfs/ocfs2/namei.c-2561-\nfs/ocfs2/namei.c:2562:\thandle = ocfs2_start_trans(osb, ocfs2_mknod_credits(osb-\u003esb, 0, 0));\nfs/ocfs2/namei.c-2563-\tif (IS_ERR(handle)) {\n--\nfs/ocfs2/namei.c-2584-\t/* do the real work now. */\nfs/ocfs2/namei.c:2585:\tstatus = __ocfs2_mknod_locked(dir, inode,\nfs/ocfs2/namei.c-2586-\t\t\t\t 0, \u0026new_di_bh, handle,\n--\nfs/ocfs2/namei.c=2933=const struct inode_operations ocfs2_dir_iops = {\n--\nfs/ocfs2/namei.c-2940-\t.mkdir\t\t= ocfs2_mkdir,\nfs/ocfs2/namei.c:2941:\t.mknod\t\t= ocfs2_mknod,\nfs/ocfs2/namei.c-2942-\t.rename\t\t= ocfs2_rename,\n"
} |
| 13/2 | 2026/07/30 08:08 | llm | patch-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 12083 output: 37 thoughts: 167 Thoughts: **Analyzing the OCFS2 Filesystem Entrypoints** Okay, let's break down how this all fits together. I see that `ocfs2_mknod` is defined as a static function, which is a bit unusual. But it's ultimately linked to the `.mknod` operation within `ocfs2_dir_iops`. That's the primary way it's exposed. Aha, and it's also called by `ocfs2_mkdir` and `ocfs2_create`. Right, so `ocfs2_mknod` is effectively an internal function that gets indirectly called through these higher-level functions. So the exposed entrypoints I need to consider are definitely `ocfs2_mknod`, `ocfs2_mkdir`, and `ocfs2_create`... and also `ocfs2_symlink`. Wait, a small snag. It looks like `ocfs2_symlink` doesn't directly call `ocfs2_mknod`. It actually calls `ocfs2_mknod_locked` instead. I'll need to remember that subtle distinction. But there's another point of interest here - `ocfs2_symlink` calls `ocfs2_init_security_and_acl`. That's an interesting call to examine. Let's dig deeper and see what that function is doing. |
| 14/2 | 2026/07/30 08:08 | tool | grepper |
0mArgs:{
"Expression": "ocfs2_init_security_and_acl",
"PathPrefix": "fs/ocfs2/"
}Results: {
"Output": "fs/ocfs2/refcounttree.c=4238=static int ocfs2_reflink(struct dentry *old_dentry, struct inode *dir,\n--\nfs/ocfs2/refcounttree.c-4296-\tif (!preserve) {\nfs/ocfs2/refcounttree.c:4297:\t\terror = ocfs2_init_security_and_acl(dir, new_orphan_inode,\nfs/ocfs2/refcounttree.c-4298-\t\t\t\t\t\t \u0026new_dentry-\u003ed_name);\n--\nfs/ocfs2/xattr.c=7182=int ocfs2_reflink_xattrs(struct inode *old_inode,\n--\nfs/ocfs2/xattr.c-7263- */\nfs/ocfs2/xattr.c:7264:int ocfs2_init_security_and_acl(struct inode *dir,\nfs/ocfs2/xattr.c-7265-\t\t\t\tstruct inode *inode,\n--\nfs/ocfs2/xattr.h=83=int ocfs2_reflink_xattrs(struct inode *old_inode,\n--\nfs/ocfs2/xattr.h-87-\t\t\t bool preserve_security);\nfs/ocfs2/xattr.h:88:int ocfs2_init_security_and_acl(struct inode *dir,\nfs/ocfs2/xattr.h-89-\t\t\t\tstruct inode *inode,\n"
} |
| 15/2 | 2026/07/30 08:08 | llm | patch-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 12962 output: 36 thoughts: 65 Thoughts: **Digging into OCFS2 Security Contexts** Okay, so I'm tracing the security context initialization within OCFS2, specifically how ACLs are handled. I see that `ocfs2_init_security_and_acl` gets called during `ocfs2_reflink`, which makes sense. Reflinking could create a need to copy over security attributes. But... I need to be sure I'm not missing something. I'm wondering if this initialization also happens during other inode creation operations. Let's quickly check the call graph for `ocfs2_symlink`. That's handled by `ocfs2_symlink` in `fs/ocfs2/namei.c`. I need to confirm if the security setup is taken care of during symlink creation as well, or if it has a different entrypoint. It's crucial to understand how ACLs and extended attributes are managed across different file creation methods within this cluster filesystem. |
| 16/2 | 2026/07/30 08:08 | tool | grepper |
0mArgs:{
"Expression": "ocfs2_symlink",
"PathPrefix": "fs/ocfs2/namei.c"
}Results: {
"Output": "fs/ocfs2/namei.c=1716=static int ocfs2_create_symlink_data(struct ocfs2_super *osb,\n--\nfs/ocfs2/namei.c-1813-\nfs/ocfs2/namei.c:1814:static int ocfs2_symlink(struct mnt_idmap *idmap,\nfs/ocfs2/namei.c-1815-\t\t\t struct inode *dir,\n--\nfs/ocfs2/namei.c-1843-\nfs/ocfs2/namei.c:1844:\ttrace_ocfs2_symlink_begin(dir, dentry, symname,\nfs/ocfs2/namei.c-1845-\t\t\t\t dentry-\u003ed_name.len, dentry-\u003ed_name.name);\n--\nfs/ocfs2/namei.c-1951-\nfs/ocfs2/namei.c:1952:\ttrace_ocfs2_symlink_create(dir, dentry, dentry-\u003ed_name.len,\nfs/ocfs2/namei.c-1953-\t\t\t\t dentry-\u003ed_name.name,\n--\nfs/ocfs2/namei.c-1967-\tnewsize = l - 1;\nfs/ocfs2/namei.c:1968:\tinode-\u003ei_op = \u0026ocfs2_symlink_inode_operations;\nfs/ocfs2/namei.c-1969-\tinode_nohighmem(inode);\n--\nfs/ocfs2/namei.c=2933=const struct inode_operations ocfs2_dir_iops = {\n--\nfs/ocfs2/namei.c-2938-\t.rmdir\t\t= ocfs2_unlink,\nfs/ocfs2/namei.c:2939:\t.symlink\t= ocfs2_symlink,\nfs/ocfs2/namei.c-2940-\t.mkdir\t\t= ocfs2_mkdir,\n"
} |
| 17/2 | 2026/07/30 08:08 | llm | patch-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 13795 output: 40 thoughts: 36 Thoughts: Okay, here's my take on those thoughts, tailored for an expert audience: **Analyzing the ACL Initialization Path in OCFS2 Symlink Creation** Alright, so I'm digging into the OCFS2 code, specifically focusing on `ocfs2_symlink`. The key question I'm trying to answer is precisely how ACLs are initialized for a newly created symbolic link. My gut feeling is telling me it's either going to leverage the existing ACL infrastructure, potentially through `ocfs2_init_acl`, or perhaps it's going to use some kind of xattr calculation routine to get it set up, so I need to check if we're calling `ocfs2_calc_xattr_init`. I need to figure out how ACLs get their initial state for these symlinks because it's a critical path to ensuring the security and permissions behave as expected. |
| 18/2 | 2026/07/30 08:08 | tool | grepper |
0mArgs:{
"Expression": "ocfs2_calc_xattr_init",
"PathPrefix": "fs/ocfs2/namei.c"
}Results: {
"Output": "fs/ocfs2/namei.c=230=static int ocfs2_mknod(struct mnt_idmap *idmap,\n--\nfs/ocfs2/namei.c-338-\t/* calculate meta data/clusters for setting security and acl xattr */\nfs/ocfs2/namei.c:339:\tstatus = ocfs2_calc_xattr_init(dir, mode, \u0026si, \u0026want_clusters,\nfs/ocfs2/namei.c-340-\t\t\t\t \u0026xattr_credits, \u0026want_meta,\n"
} |
| 19/2 | 2026/07/30 08:08 | llm | patch-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 14212 output: 37 thoughts: 50 Thoughts: Okay, here's my take on those thoughts, framed as my own: **Digging into OCFS2 Xattr Initialization** Right, so I'm focusing on how Extended Attributes (Xattrs) get initialized within the OCFS2 filesystem. My initial thought is that `ocfs2_calc_xattr_init` is *only* called within the `ocfs2_mknod` function. That seems... potentially restrictive. I need to make sure I'm not missing something critical. Specifically, I need to know if there is another function where Xattr initialization takes place. What about symbolic links? `ocfs2_symlink`! Does that also set ACLs? That's the next thing I need to investigate. I need to confirm that my initial assumption is correct, or if there's another point where Xattrs get set up. |
| 20/2 | 2026/07/30 08:08 | tool | grepper |
0mArgs:{
"Expression": "ocfs2_init_acl",
"PathPrefix": "fs/ocfs2/namei.c"
}Results: {
"Output": "fs/ocfs2/namei.c=230=static int ocfs2_mknod(struct mnt_idmap *idmap,\n--\nfs/ocfs2/namei.c-418-\nfs/ocfs2/namei.c:419:\tstatus = ocfs2_init_acl(handle, inode, new_fe_bh, meta_ac, data_ac,\nfs/ocfs2/namei.c-420-\t\t\t\t\u0026acl_state);\n"
} |
| 21/2 | 2026/07/30 08:08 | llm | patch-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 14617 output: 32 thoughts: 164 Thoughts: **Analyzing OCFS2 File Creation and ACL Initialization** Okay, so I'm looking at how OCFS2 handles symbolic links, and I see that `ocfs2_symlink` doesn't seem to invoke `ocfs2_init_acl` or `ocfs2_calc_xattr_init` directly. That's a little unexpected. Now, I remember that `ocfs2_init_acl` *is* called within `ocfs2_mknod` and also in `ocfs2_init_security_and_acl`. Then I remember that `ocfs2_init_security_and_acl` is called by `ocfs2_reflink`. This suggests the functions handling the ACL stuff I need to concentrate on are `ocfs2_mknod`, `ocfs2_mkdir`, `ocfs2_create`, and `ocfs2_reflink`. But hold on, isn't `ocfs2_mknod` static? Let me double-check `ocfs2_reflink` for a better understanding. I'll focus my efforts there. |
| 22/2 | 2026/07/30 08:08 | tool | grepper |
0mArgs:{
"Expression": "ocfs2_reflink",
"PathPrefix": "fs/ocfs2/"
}Results: {
"Output": "fs/ocfs2/file.c=2706=static loff_t ocfs2_remap_file_range(struct file *file_in, loff_t pos_in,\n--\nfs/ocfs2/file.c-2725-\t/* Lock both files against IO */\nfs/ocfs2/file.c:2726:\tret = ocfs2_reflink_inodes_lock(inode_in, \u0026in_bh, inode_out, \u0026out_bh);\nfs/ocfs2/file.c-2727-\tif (ret)\n--\nfs/ocfs2/file.c-2751-\nfs/ocfs2/file.c:2752:\tremapped = ocfs2_reflink_remap_blocks(inode_in, in_bh, pos_in,\nfs/ocfs2/file.c-2753-\t\t\tinode_out, out_bh, pos_out, len);\n--\nfs/ocfs2/file.c-2769-\nfs/ocfs2/file.c:2770:\tret = ocfs2_reflink_update_dest(inode_out, out_bh, pos_out + len);\nfs/ocfs2/file.c-2771-\tif (ret) {\n--\nfs/ocfs2/file.c-2776-out_unlock:\nfs/ocfs2/file.c:2777:\tocfs2_reflink_inodes_unlock(inode_in, in_bh, inode_out, out_bh);\nfs/ocfs2/file.c-2778-\treturn remapped \u003e 0 ? remapped : ret;\n--\nfs/ocfs2/ioctl.c=853=long ocfs2_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)\n--\nfs/ocfs2/ioctl.c-919-\nfs/ocfs2/ioctl.c:920:\t\treturn ocfs2_reflink_ioctl(inode, old_path, new_path, preserve);\nfs/ocfs2/ioctl.c-921-\t}\n--\nfs/ocfs2/ioctl.c=965=long ocfs2_compat_ioctl(struct file *file, unsigned cmd, unsigned long arg)\n--\nfs/ocfs2/ioctl.c-986-\nfs/ocfs2/ioctl.c:987:\t\treturn ocfs2_reflink_ioctl(inode, compat_ptr(args.old_path),\nfs/ocfs2/ioctl.c-988-\t\t\t\t\t compat_ptr(args.new_path), preserve);\n--\nfs/ocfs2/ocfs2_trace.h=1831=DEFINE_OCFS2_ULL_ULL_UINT_UINT_EVENT(ocfs2_rm_xattr_cluster);\nfs/ocfs2/ocfs2_trace.h-1832-\nfs/ocfs2/ocfs2_trace.h:1833:DEFINE_OCFS2_ULL_UINT_EVENT(ocfs2_reflink_xattr_header);\nfs/ocfs2/ocfs2_trace.h-1834-\n--\nfs/ocfs2/ocfs2_trace.h=1841=DEFINE_OCFS2_ULL_UINT_EVENT(ocfs2_xattr_bucket_value_refcount);\nfs/ocfs2/ocfs2_trace.h-1842-\nfs/ocfs2/ocfs2_trace.h:1843:DEFINE_OCFS2_ULL_UINT_UINT_EVENT(ocfs2_reflink_xattr_buckets);\nfs/ocfs2/ocfs2_trace.h-1844-\nfs/ocfs2/ocfs2_trace.h:1845:DEFINE_OCFS2_ULL_UINT_EVENT(ocfs2_reflink_xattr_rec);\nfs/ocfs2/ocfs2_trace.h-1846-\n--\nfs/ocfs2/refcounttree.c=4089=static int ocfs2_create_reflink_node(struct inode *s_inode,\n--\nfs/ocfs2/refcounttree.c-4145-\nfs/ocfs2/refcounttree.c:4146:static int __ocfs2_reflink(struct dentry *old_dentry,\nfs/ocfs2/refcounttree.c-4147-\t\t\t struct buffer_head *old_bh,\n--\nfs/ocfs2/refcounttree.c-4209-\tif (oi-\u003eip_dyn_features \u0026 OCFS2_HAS_XATTR_FL) {\nfs/ocfs2/refcounttree.c:4210:\t\tret = ocfs2_reflink_xattrs(inode, old_bh,\nfs/ocfs2/refcounttree.c-4211-\t\t\t\t\t new_inode, new_bh,\n--\nfs/ocfs2/refcounttree.c-4237-\nfs/ocfs2/refcounttree.c:4238:static int ocfs2_reflink(struct dentry *old_dentry, struct inode *dir,\nfs/ocfs2/refcounttree.c-4239-\t\t\t struct dentry *new_dentry, bool preserve)\n--\nfs/ocfs2/refcounttree.c-4272-\tdown_write(\u0026OCFS2_I(inode)-\u003eip_alloc_sem);\nfs/ocfs2/refcounttree.c:4273:\terror = __ocfs2_reflink(old_dentry, old_bh,\nfs/ocfs2/refcounttree.c-4274-\t\t\t\tnew_orphan_inode, preserve);\n--\nfs/ocfs2/refcounttree.c=4348=static int ocfs2_vfs_reflink(struct dentry *old_dentry, struct inode *dir,\n--\nfs/ocfs2/refcounttree.c-4398-\tif (!error)\nfs/ocfs2/refcounttree.c:4399:\t\terror = ocfs2_reflink(old_dentry, dir, new_dentry, preserve);\nfs/ocfs2/refcounttree.c-4400-\tinode_unlock(inode);\n--\nfs/ocfs2/refcounttree.c-4407- */\nfs/ocfs2/refcounttree.c:4408:int ocfs2_reflink_ioctl(struct inode *inode,\nfs/ocfs2/refcounttree.c-4409-\t\t\tconst char __user *oldname,\n--\nfs/ocfs2/refcounttree.c-4450-/* Update destination inode size, if necessary. */\nfs/ocfs2/refcounttree.c:4451:int ocfs2_reflink_update_dest(struct inode *dest,\nfs/ocfs2/refcounttree.c-4452-\t\t\t struct buffer_head *d_bh,\n--\nfs/ocfs2/refcounttree.c-4489-/* Remap the range pos_in:len in s_inode to pos_out:len in t_inode. */\nfs/ocfs2/refcounttree.c:4490:static loff_t ocfs2_reflink_remap_extent(struct inode *s_inode,\nfs/ocfs2/refcounttree.c-4491-\t\t\t\t\t struct buffer_head *s_bh,\n--\nfs/ocfs2/refcounttree.c-4603-/* Set up refcount tree and remap s_inode to t_inode. */\nfs/ocfs2/refcounttree.c:4604:loff_t ocfs2_reflink_remap_blocks(struct inode *s_inode,\nfs/ocfs2/refcounttree.c-4605-\t\t\t\t struct buffer_head *s_bh,\n--\nfs/ocfs2/refcounttree.c-4685-\t/* Actually remap extents now. */\nfs/ocfs2/refcounttree.c:4686:\tret = ocfs2_reflink_remap_extent(s_inode, s_bh, pos_in, t_inode, t_bh,\nfs/ocfs2/refcounttree.c-4687-\t\t\t\t\t pos_out, len, \u0026dealloc);\n--\nfs/ocfs2/refcounttree.c-4702-/* Lock an inode and grab a bh pointing to the inode. */\nfs/ocfs2/refcounttree.c:4703:int ocfs2_reflink_inodes_lock(struct inode *s_inode,\nfs/ocfs2/refcounttree.c-4704-\t\t\t struct buffer_head **bh_s,\n--\nfs/ocfs2/refcounttree.c-4796-/* Unlock both inodes and release buffers. */\nfs/ocfs2/refcounttree.c:4797:void ocfs2_reflink_inodes_unlock(struct inode *s_inode,\nfs/ocfs2/refcounttree.c-4798-\t\t\t\t struct buffer_head *s_bh,\n--\nfs/ocfs2/refcounttree.h=98=int ocfs2_increase_refcount(handle_t *handle,\n--\nfs/ocfs2/refcounttree.h-103-\t\t\t struct ocfs2_cached_dealloc_ctxt *dealloc);\nfs/ocfs2/refcounttree.h:104:int ocfs2_reflink_ioctl(struct inode *inode,\nfs/ocfs2/refcounttree.h-105-\t\t\tconst char __user *oldname,\n--\nfs/ocfs2/refcounttree.h-107-\t\t\tbool preserve);\nfs/ocfs2/refcounttree.h:108:loff_t ocfs2_reflink_remap_blocks(struct inode *s_inode,\nfs/ocfs2/refcounttree.h-109-\t\t\t\t struct buffer_head *s_bh,\n--\nfs/ocfs2/refcounttree.h-114-\t\t\t\t loff_t len);\nfs/ocfs2/refcounttree.h:115:int ocfs2_reflink_inodes_lock(struct inode *s_inode,\nfs/ocfs2/refcounttree.h-116-\t\t\t struct buffer_head **bh1,\n--\nfs/ocfs2/refcounttree.h-118-\t\t\t struct buffer_head **bh2);\nfs/ocfs2/refcounttree.h:119:void ocfs2_reflink_inodes_unlock(struct inode *s_inode,\nfs/ocfs2/refcounttree.h-120-\t\t\t\t struct buffer_head *s_bh,\n--\nfs/ocfs2/refcounttree.h-122-\t\t\t\t struct buffer_head *t_bh);\nfs/ocfs2/refcounttree.h:123:int ocfs2_reflink_update_dest(struct inode *dest,\nfs/ocfs2/refcounttree.h-124-\t\t\t struct buffer_head *d_bh,\n--\nfs/ocfs2/xattr.c=6308=static int ocfs2_get_xattr_value_root(struct super_block *sb,\n--\nfs/ocfs2/xattr.c-6331- */\nfs/ocfs2/xattr.c:6332:static int ocfs2_reflink_lock_xattr_allocators(struct ocfs2_super *osb,\nfs/ocfs2/xattr.c-6333-\t\t\t\t\tstruct ocfs2_xattr_header *xh,\n--\nfs/ocfs2/xattr.c-6387- */\nfs/ocfs2/xattr.c:6388:static int ocfs2_reflink_xattr_header(handle_t *handle,\nfs/ocfs2/xattr.c-6389-\t\t\t\t struct ocfs2_xattr_reflink *args,\n--\nfs/ocfs2/xattr.c-6407-\nfs/ocfs2/xattr.c:6408:\ttrace_ocfs2_reflink_xattr_header((unsigned long long)old_bh-\u003eb_blocknr,\nfs/ocfs2/xattr.c-6409-\t\t\t\t\t le16_to_cpu(xh-\u003exh_count));\n--\nfs/ocfs2/xattr.c-6517-\nfs/ocfs2/xattr.c:6518:static int ocfs2_reflink_xattr_inline(struct ocfs2_xattr_reflink *args)\nfs/ocfs2/xattr.c-6519-{\n--\nfs/ocfs2/xattr.c-6544-\nfs/ocfs2/xattr.c:6545:\tret = ocfs2_reflink_lock_xattr_allocators(osb, xh, args-\u003eref_root_bh,\nfs/ocfs2/xattr.c-6546-\t\t\t\t\t\t \u0026credits, \u0026meta_ac);\n--\nfs/ocfs2/xattr.c-6571-\nfs/ocfs2/xattr.c:6572:\tret = ocfs2_reflink_xattr_header(handle, args, args-\u003eold_bh, xh,\nfs/ocfs2/xattr.c-6573-\t\t\t\t\t args-\u003enew_bh, new_xh, \u0026vb, meta_ac,\n--\nfs/ocfs2/xattr.c=6598=static int ocfs2_create_empty_xattr_block(struct inode *inode,\n--\nfs/ocfs2/xattr.c-6633-\nfs/ocfs2/xattr.c:6634:static int ocfs2_reflink_xattr_block(struct ocfs2_xattr_reflink *args,\nfs/ocfs2/xattr.c-6635-\t\t\t\t struct buffer_head *blk_bh,\n--\nfs/ocfs2/xattr.c-6655-\nfs/ocfs2/xattr.c:6656:\tret = ocfs2_reflink_lock_xattr_allocators(osb, xh, args-\u003eref_root_bh,\nfs/ocfs2/xattr.c-6657-\t\t\t\t\t\t \u0026credits, \u0026meta_ac);\n--\nfs/ocfs2/xattr.c-6691-\nfs/ocfs2/xattr.c:6692:\tret = ocfs2_reflink_xattr_header(handle, args, blk_bh, xh,\nfs/ocfs2/xattr.c-6693-\t\t\t\t\t new_blk_bh, new_xh, \u0026vb, meta_ac,\n--\nfs/ocfs2/xattr.c-6719-\nfs/ocfs2/xattr.c:6720:struct ocfs2_reflink_xattr_tree_args {\nfs/ocfs2/xattr.c-6721-\tstruct ocfs2_xattr_reflink *reflink;\n--\nfs/ocfs2/xattr.c=6734=static int ocfs2_get_reflink_xattr_value_root(struct super_block *sb,\n--\nfs/ocfs2/xattr.c-6741-{\nfs/ocfs2/xattr.c:6742:\tstruct ocfs2_reflink_xattr_tree_args *args =\nfs/ocfs2/xattr.c:6743:\t\t\t(struct ocfs2_reflink_xattr_tree_args *)para;\nfs/ocfs2/xattr.c-6744-\tstruct ocfs2_xattr_bucket *bucket;\n--\nfs/ocfs2/xattr.c=6799=static int ocfs2_lock_reflink_xattr_rec_allocators(\nfs/ocfs2/xattr.c:6800:\t\t\t\tstruct ocfs2_reflink_xattr_tree_args *args,\nfs/ocfs2/xattr.c-6801-\t\t\t\tstruct ocfs2_extent_tree *xt_et,\n--\nfs/ocfs2/xattr.c-6884-\nfs/ocfs2/xattr.c:6885:static int ocfs2_reflink_xattr_bucket(handle_t *handle,\nfs/ocfs2/xattr.c-6886-\t\t\t\tu64 blkno, u64 new_blkno, u32 clusters,\n--\nfs/ocfs2/xattr.c-6889-\t\t\t\tstruct ocfs2_alloc_context *data_ac,\nfs/ocfs2/xattr.c:6890:\t\t\t\tstruct ocfs2_reflink_xattr_tree_args *args)\nfs/ocfs2/xattr.c-6891-{\n--\nfs/ocfs2/xattr.c-6938-\nfs/ocfs2/xattr.c:6939:\t\tret = ocfs2_reflink_xattr_header(handle, args-\u003ereflink,\nfs/ocfs2/xattr.c-6940-\t\t\t\t\targs-\u003eold_bucket-\u003ebu_bhs[0],\n--\nfs/ocfs2/xattr.c-6975-\nfs/ocfs2/xattr.c:6976:static int ocfs2_reflink_xattr_buckets(handle_t *handle,\nfs/ocfs2/xattr.c-6977-\t\t\t\tstruct inode *inode,\nfs/ocfs2/xattr.c:6978:\t\t\t\tstruct ocfs2_reflink_xattr_tree_args *args,\nfs/ocfs2/xattr.c-6979-\t\t\t\tstruct ocfs2_extent_tree *et,\n--\nfs/ocfs2/xattr.c-7009-\nfs/ocfs2/xattr.c:7010:\t\tret = ocfs2_reflink_xattr_bucket(handle, blkno,\nfs/ocfs2/xattr.c-7011-\t\t\t\t\t\t new_blkno, num_clusters,\n--\nfs/ocfs2/xattr.c-7032-\nfs/ocfs2/xattr.c:7033:\t\ttrace_ocfs2_reflink_xattr_buckets((unsigned long long)new_blkno,\nfs/ocfs2/xattr.c-7034-\t\t\t\t\t\t num_clusters, reflink_cpos);\n--\nfs/ocfs2/xattr.c-7046- */\nfs/ocfs2/xattr.c:7047:static int ocfs2_reflink_xattr_rec(struct inode *inode,\nfs/ocfs2/xattr.c-7048-\t\t\t\t struct buffer_head *root_bh,\n--\nfs/ocfs2/xattr.c-7055-\thandle_t *handle;\nfs/ocfs2/xattr.c:7056:\tstruct ocfs2_reflink_xattr_tree_args *args =\nfs/ocfs2/xattr.c:7057:\t\t\t(struct ocfs2_reflink_xattr_tree_args *)para;\nfs/ocfs2/xattr.c-7058-\tstruct ocfs2_super *osb = OCFS2_SB(inode-\u003ei_sb);\n--\nfs/ocfs2/xattr.c-7062-\nfs/ocfs2/xattr.c:7063:\ttrace_ocfs2_reflink_xattr_rec((unsigned long long)blkno, len);\nfs/ocfs2/xattr.c-7064-\n--\nfs/ocfs2/xattr.c-7083-\nfs/ocfs2/xattr.c:7084:\tret = ocfs2_reflink_xattr_buckets(handle, inode, args, \u0026et,\nfs/ocfs2/xattr.c-7085-\t\t\t\t\t meta_ac, data_ac,\n--\nfs/ocfs2/xattr.c-7104- */\nfs/ocfs2/xattr.c:7105:static int ocfs2_reflink_xattr_tree(struct ocfs2_xattr_reflink *args,\nfs/ocfs2/xattr.c-7106-\t\t\t\t struct buffer_head *blk_bh,\n--\nfs/ocfs2/xattr.c-7109-\tint ret;\nfs/ocfs2/xattr.c:7110:\tstruct ocfs2_reflink_xattr_tree_args para;\nfs/ocfs2/xattr.c-7111-\n--\nfs/ocfs2/xattr.c-7130-\tret = ocfs2_iterate_xattr_index_block(args-\u003eold_inode, blk_bh,\nfs/ocfs2/xattr.c:7131:\t\t\t\t\t ocfs2_reflink_xattr_rec,\nfs/ocfs2/xattr.c-7132-\t\t\t\t\t \u0026para);\n--\nfs/ocfs2/xattr.c-7141-\nfs/ocfs2/xattr.c:7142:static int ocfs2_reflink_xattr_in_block(struct ocfs2_xattr_reflink *args,\nfs/ocfs2/xattr.c-7143-\t\t\t\t\tstruct buffer_head *blk_bh)\n--\nfs/ocfs2/xattr.c-7161-\tif (!indexed)\nfs/ocfs2/xattr.c:7162:\t\tret = ocfs2_reflink_xattr_block(args, blk_bh, new_blk_bh);\nfs/ocfs2/xattr.c-7163-\telse\nfs/ocfs2/xattr.c:7164:\t\tret = ocfs2_reflink_xattr_tree(args, blk_bh, new_blk_bh);\nfs/ocfs2/xattr.c-7165-\tif (ret)\n--\nfs/ocfs2/xattr.c-7172-\nfs/ocfs2/xattr.c:7173:static int ocfs2_reflink_xattr_no_security(struct ocfs2_xattr_entry *xe)\nfs/ocfs2/xattr.c-7174-{\n--\nfs/ocfs2/xattr.c-7181-\nfs/ocfs2/xattr.c:7182:int ocfs2_reflink_xattrs(struct inode *old_inode,\nfs/ocfs2/xattr.c-7183-\t\t\t struct buffer_head *old_bh,\n--\nfs/ocfs2/xattr.c-7216-\telse\nfs/ocfs2/xattr.c:7217:\t\targs.xattr_reflinked = ocfs2_reflink_xattr_no_security;\nfs/ocfs2/xattr.c-7218-\nfs/ocfs2/xattr.c-7219-\tif (oi-\u003eip_dyn_features \u0026 OCFS2_INLINE_XATTR_FL) {\nfs/ocfs2/xattr.c:7220:\t\tret = ocfs2_reflink_xattr_inline(\u0026args);\nfs/ocfs2/xattr.c-7221-\t\tif (ret) {\n--\nfs/ocfs2/xattr.c-7236-\nfs/ocfs2/xattr.c:7237:\tret = ocfs2_reflink_xattr_in_block(\u0026args, blk_bh);\nfs/ocfs2/xattr.c-7238-\tif (ret)\n--\nfs/ocfs2/xattr.h=78=int ocfs2_xattr_attach_refcount_tree(struct inode *inode,\n--\nfs/ocfs2/xattr.h-82-\t\t\t\t struct ocfs2_cached_dealloc_ctxt *dealloc);\nfs/ocfs2/xattr.h:83:int ocfs2_reflink_xattrs(struct inode *old_inode,\nfs/ocfs2/xattr.h-84-\t\t\t struct buffer_head *old_bh,\n"
} |
| 23/2 | 2026/07/30 08:08 | llm | patch-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 21108 output: 36 thoughts: 301 Thoughts: **Analyzing OCFS2 Function Calls and Scope** Okay, so I'm looking at the call flow here. It appears `ocfs2_reflink` is ultimately triggered through the ioctl system calls, specifically `ocfs2_reflink_ioctl`, which itself is invoked by `ocfs2_ioctl` and `ocfs2_compat_ioctl`. My main focus is on a few key functions in this context: `ocfs2_mknod`, `ocfs2_mkdir`, `ocfs2_create`, `ocfs2_symlink`, naturally `ocfs2_reflink`, and then also the ACL/security initialization routines: `ocfs2_init_security_and_acl`, `ocfs2_init_acl`, `ocfs2_acl_init_prepare`, and finally `ocfs2_calc_xattr_init`. Wait a minute, I need to check the scope on those first four I listed. Are `ocfs2_mknod`, `ocfs2_mkdir`, `ocfs2_create`, and `ocfs2_symlink` actually static? Hmm, yeah, they are. That's good to know. So, that leaves me with the initialization routines and `ocfs2_xattr_set_handle`, and the reflink function as non-static entry points. That's helpful for understanding how the kernel interacts with these parts of the filesystem. I should take a look at `ocfs2_xattr_set_handle` now. |
| 24/2 | 2026/07/30 08:08 | tool | grepper |
0mArgs:{
"Expression": "ocfs2_xattr_set_handle",
"PathPrefix": "fs/ocfs2/"
}Results: {
"Output": "fs/ocfs2/acl.c=214=static int ocfs2_set_acl(handle_t *handle,\n--\nfs/ocfs2/acl.c-249-\tif (handle)\nfs/ocfs2/acl.c:250:\t\tret = ocfs2_xattr_set_handle(handle, inode, di_bh, name_index,\nfs/ocfs2/acl.c-251-\t\t\t\t\t \"\", value, size, 0,\n--\nfs/ocfs2/xattr.c=3305=static int ocfs2_init_xattr_set_ctxt(struct inode *inode,\n--\nfs/ocfs2/xattr.c-3360-\nfs/ocfs2/xattr.c:3361:static int __ocfs2_xattr_set_handle(struct inode *inode,\nfs/ocfs2/xattr.c-3362-\t\t\t\t struct ocfs2_dinode *di,\n--\nfs/ocfs2/xattr.c-3502- */\nfs/ocfs2/xattr.c:3503:int ocfs2_xattr_set_handle(handle_t *handle,\nfs/ocfs2/xattr.c-3504-\t\t\t struct inode *inode,\n--\nfs/ocfs2/xattr.c-3566-\nfs/ocfs2/xattr.c:3567:\tret = __ocfs2_xattr_set_handle(inode, di, \u0026xi, \u0026xis, \u0026xbs, \u0026ctxt);\nfs/ocfs2/xattr.c-3568-\n--\nfs/ocfs2/xattr.c=3583=int ocfs2_xattr_set(struct inode *inode,\n--\nfs/ocfs2/xattr.c-3703-\nfs/ocfs2/xattr.c:3704:\tret = __ocfs2_xattr_set_handle(inode, di, \u0026xi, \u0026xis, \u0026xbs, \u0026ctxt);\nfs/ocfs2/xattr.c-3705-\tocfs2_update_inode_fsync_trans(ctxt.handle, inode, 0);\n--\nfs/ocfs2/xattr.c=7376=int ocfs2_init_security_set(handle_t *handle,\n--\nfs/ocfs2/xattr.c-7382-{\nfs/ocfs2/xattr.c:7383:\treturn ocfs2_xattr_set_handle(handle, inode, di_bh,\nfs/ocfs2/xattr.c-7384-\t\t\t\t OCFS2_XATTR_INDEX_SECURITY,\n--\nfs/ocfs2/xattr.h=38=int ocfs2_xattr_set(struct inode *, int, const char *, const void *,\nfs/ocfs2/xattr.h-39-\t\t size_t, int);\nfs/ocfs2/xattr.h:40:int ocfs2_xattr_set_handle(handle_t *, struct inode *, struct buffer_head *,\nfs/ocfs2/xattr.h-41-\t\t\t int, const char *, const void *, size_t, int,\n"
} |
| 25/2 | 2026/07/30 08:08 | llm | patch-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 22587 output: 35 thoughts: 247 Thoughts: **Tracing the ACL and Security Attribute Initialization** Okay, let's break down how this all fits together. I'm focusing on the ACL and security attribute initialization pathways within this OCFS2 filesystem. My thinking is that the best approach here is to understand the calling relationships. It looks like `ocfs2_xattr_set_handle` is the workhorse here, and it's called from two key locations: `ocfs2_set_acl` and `ocfs2_init_security_set`. Alright, `ocfs2_set_acl` itself is called by `ocfs2_init_acl` and `ocfs2_iop_set_acl`. And, since `ocfs2_iop_set_acl` is the `.set_acl` inode operation, that confirms its importance. Therefore, my main interest is in these entry points: * `ocfs2_init_security_and_acl` (as a potential initialization entry point) * `ocfs2_init_acl` (another initialization entry point) * `ocfs2_acl_init_prepare` (a function which appears to be involved in the preparation) * `ocfs2_calc_xattr_init` (perhaps used for initial calculations related to extended attributes) * `ocfs2_xattr_set_handle` (the core function for setting the attributes) * `ocfs2_iop_set_acl` (the actual inode operation called by userspace) But I have to be thorough... Is there any other entry point? Hmm, I see `ocfs2_reflink_ioctl` is non-static, which means it's exported and could be involved in some related operations. And, of course, the general `ocfs2_ioctl` and `ocfs2_compat_ioctl` functions are non-static and worth a look, too. I should probably focus on `ocfs2_iop_set_acl` next to start my investigation. |
| 26/2 | 2026/07/30 08:09 | tool | grepper |
0mArgs:{
"Expression": "ocfs2_iop_set_acl",
"PathPrefix": "fs/ocfs2/"
}Results: {
"Output": "fs/ocfs2/acl.c=214=static int ocfs2_set_acl(handle_t *handle,\n--\nfs/ocfs2/acl.c-262-\nfs/ocfs2/acl.c:263:int ocfs2_iop_set_acl(struct mnt_idmap *idmap, struct dentry *dentry,\nfs/ocfs2/acl.c-264-\t\t struct posix_acl *acl, int type)\n--\nfs/ocfs2/acl.h=19=struct posix_acl *ocfs2_iop_get_acl(struct inode *inode, int type, bool rcu);\nfs/ocfs2/acl.h:20:int ocfs2_iop_set_acl(struct mnt_idmap *idmap, struct dentry *dentry,\nfs/ocfs2/acl.h-21-\t\t struct posix_acl *acl, int type);\n--\nfs/ocfs2/file.c=2788=const struct inode_operations ocfs2_file_iops = {\n--\nfs/ocfs2/file.c-2794-\t.get_inode_acl\t= ocfs2_iop_get_acl,\nfs/ocfs2/file.c:2795:\t.set_acl\t= ocfs2_iop_set_acl,\nfs/ocfs2/file.c-2796-\t.fileattr_get\t= ocfs2_fileattr_get,\n--\nfs/ocfs2/file.c=2800=const struct inode_operations ocfs2_special_file_iops = {\n--\nfs/ocfs2/file.c-2805-\t.get_inode_acl\t= ocfs2_iop_get_acl,\nfs/ocfs2/file.c:2806:\t.set_acl\t= ocfs2_iop_set_acl,\nfs/ocfs2/file.c-2807-};\n--\nfs/ocfs2/namei.c=2933=const struct inode_operations ocfs2_dir_iops = {\n--\nfs/ocfs2/namei.c-2948-\t.get_inode_acl\t= ocfs2_iop_get_acl,\nfs/ocfs2/namei.c:2949:\t.set_acl\t= ocfs2_iop_set_acl,\nfs/ocfs2/namei.c-2950-\t.fileattr_get\t= ocfs2_fileattr_get,\n"
} |
| 27/2 | 2026/07/30 08:09 | llm | patch-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 23951 output: 33 thoughts: 380 Thoughts: **Analyzing the OCFS2 ACL Patch** Okay, so I'm looking at this `ocfs2_iop_set_acl` function – that's the `.set_acl` operation, got it. But the patch is specifically touching `ocfs2_init_acl` and `ocfs2_calc_xattr_init`. Those are getting called during inode creation, things like `mknod`, `mkdir`, `create`, `symlink`, and `reflink`. So, the really key symbols to focus on are: `ocfs2_init_security_and_acl`, `ocfs2_init_acl`, `ocfs2_acl_init_prepare`, `ocfs2_calc_xattr_init`, `ocfs2_xattr_set_handle`, and `ocfs2_reflink_ioctl`. Let's make sure these things are actually reachable. `ocfs2_mknod`, yep, that goes through `vfs_mknod`. `ocfs2_mkdir` is handled through `vfs_mkdir`. And `ocfs2_create` uses `vfs_create`, `ocfs2_symlink` goes through `vfs_symlink`, and `ocfs2_reflink` is accessed via `ioctl`. Good, this patch is definitely functional and reachable. Alright, the patch is removing `down_write(&OCFS2_I(inode)->ip_xattr_sem)` from `ocfs2_xattr_set_handle`. Apparently, that was causing some kind of deadlock, and it's only called during inode creation when the inode isn't yet published. But, wait a minute, `ocfs2_xattr_set_handle` is also used by `ocfs2_set_acl` and `ocfs2_init_security_set`. Hang on, is `ocfs2_set_acl` *only* called during inode creation? I need to double-check `ocfs2_set_acl`. |
| 28/2 | 2026/07/30 08:09 | tool | grepper |
0mArgs:{
"Expression": "ocfs2_set_acl",
"PathPrefix": "fs/ocfs2/"
}Results: {
"Output": "fs/ocfs2/acl.c=158=static int ocfs2_acl_set_mode(struct inode *inode, struct buffer_head *di_bh,\n--\nfs/ocfs2/acl.c-213- */\nfs/ocfs2/acl.c:214:static int ocfs2_set_acl(handle_t *handle,\nfs/ocfs2/acl.c-215-\t\t\t struct inode *inode,\n--\nfs/ocfs2/acl.c=263=int ocfs2_iop_set_acl(struct mnt_idmap *idmap, struct dentry *dentry,\n--\nfs/ocfs2/acl.c-285-\t}\nfs/ocfs2/acl.c:286:\tstatus = ocfs2_set_acl(NULL, inode, bh, type, acl, NULL, NULL);\nfs/ocfs2/acl.c-287-unlock:\n--\nfs/ocfs2/acl.c=321=int ocfs2_acl_chmod(struct inode *inode, struct buffer_head *bh)\n--\nfs/ocfs2/acl.c-340-\t\treturn ret;\nfs/ocfs2/acl.c:341:\tret = ocfs2_set_acl(NULL, inode, NULL, ACL_TYPE_ACCESS,\nfs/ocfs2/acl.c-342-\t\t\t acl, NULL, NULL);\n--\nfs/ocfs2/acl.c=414=int ocfs2_init_acl(handle_t *handle, struct inode *inode,\n--\nfs/ocfs2/acl.c-427-\t\tif (S_ISDIR(inode-\u003ei_mode) \u0026\u0026 state-\u003edefault_acl) {\nfs/ocfs2/acl.c:428:\t\t\tret = ocfs2_set_acl(handle, inode, di_bh,\nfs/ocfs2/acl.c-429-\t\t\t\t\t ACL_TYPE_DEFAULT,\n--\nfs/ocfs2/acl.c-444-\t\tif (state-\u003eacl) {\nfs/ocfs2/acl.c:445:\t\t\tret = ocfs2_set_acl(handle, inode, di_bh,\nfs/ocfs2/acl.c-446-\t\t\t\t\t ACL_TYPE_ACCESS, state-\u003eacl,\n"
} |
| 29/2 | 2026/07/30 08:09 | llm | patch-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 25389 output: 37 thoughts: 95 Thoughts: **Analyzing the OCFS2 ACL Setting Mechanism** Okay, so I'm digging into this `ocfs2_set_acl` function and immediately a key point jumps out at me. I'm seeing that it's called by both `ocfs2_iop_set_acl` and `ocfs2_acl_chmod`. The interesting thing is that sometimes, with these callers, the *handle* parameter is NULL. That seems significant. Now, a bell is ringing in my head. When the *handle* is NULL, `ocfs2_set_acl` doesn't use the handle-based xattr setting function, `ocfs2_xattr_set_handle`, but rather the standard `ocfs2_xattr_set`. That difference could be crucial for performance or in triggering specific code paths. So, that's where I need to focus my attention. It’s time to go into `ocfs2_set_acl` itself and see what's happening internally. |
| 30/2 | 2026/07/30 08:09 | tool | grepper |
0mArgs:{
"Expression": "ocfs2_xattr_set",
"PathPrefix": "fs/ocfs2/acl.c"
}Results: {
"Output": "fs/ocfs2/acl.c=214=static int ocfs2_set_acl(handle_t *handle,\n--\nfs/ocfs2/acl.c-249-\tif (handle)\nfs/ocfs2/acl.c:250:\t\tret = ocfs2_xattr_set_handle(handle, inode, di_bh, name_index,\nfs/ocfs2/acl.c-251-\t\t\t\t\t \"\", value, size, 0,\n--\nfs/ocfs2/acl.c-253-\telse\nfs/ocfs2/acl.c:254:\t\tret = ocfs2_xattr_set(inode, name_index, \"\", value, size, 0);\nfs/ocfs2/acl.c-255-\n"
} |
| 31/2 | 2026/07/30 08:09 | llm | patch-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 25943 output: 32 thoughts: 362 Thoughts: **Analyzing the xattr Modification in OCFS2** Okay, let's break this down. It seems the key here is `ocfs2_xattr_set_handle`, and I've confirmed that this function is only called when a transaction handle is provided, which is during inode creation. Therefore, the patch's removal of the write lock `down_write(&OCFS2_I(inode)->ip_xattr_sem)` from within `ocfs2_xattr_set_handle` is the crucial change to focus on. So, the critical symbols to understand are: `ocfs2_init_security_and_acl`, `ocfs2_init_acl`, `ocfs2_acl_init_prepare`, `ocfs2_calc_xattr_init`, and, of course, `ocfs2_xattr_set_handle`. Now, regarding configuration, it looks like `OCFS2_FS` is relevant. Let's see if there are any dependencies that aren't standard. It depends on `INET && SYSFS && CONFIGFS_FS`. The instructions are clear: include *non-standard* parent subsystem configs. Since `INET` and `SYSFS` are common, I'll add `CONFIGFS_FS` and `OCFS2_FS` to the list. Just to be sure, I will double-check `CONFIGFS_FS`. This looks good. |
| 32/2 | 2026/07/30 08:09 | tool | grepper |
0mArgs:{
"Expression": "config CONFIGFS_FS",
"PathPrefix": "fs/configfs/Kconfig"
}Results: {
"Output": "fs/configfs/Kconfig-1-# SPDX-License-Identifier: GPL-2.0-only\nfs/configfs/Kconfig:2:config CONFIGFS_FS\nfs/configfs/Kconfig-3-\ttristate \"Userspace-driven configuration filesystem\"\n"
} |
| 33/2 | 2026/07/30 08:09 | llm | patch-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 26719 output: 186 thoughts: 450 Thoughts: **OCFS2 ACL Initialization Refactoring Analysis** Okay, so `CONFIGFS_FS` is confirmed as tristate, that's straightforward. Now, let's look at what `OCFS2_FS` requires. The dependencies are `INET && SYSFS && CONFIGFS_FS`, and it selects `BUFFER_HEAD`, `JBD2`, `CRC32`, `QUOTA`, `QUOTA_TREE`, `FS_POSIX_ACL`, and `LEGACY_DIRECT_IO`. So, `OCFS2_FS` and `CONFIGFS_FS` are the key ones to keep an eye on. Next, I need to understand the specifics of the patch. The focus symbols are: `ocfs2_init_security_and_acl`, `ocfs2_init_acl`, `ocfs2_acl_init_prepare`, `ocfs2_calc_xattr_init`, and `ocfs2_xattr_set_handle`. Those are all non-static functions and appear to be directly involved. The patch itself is a refactoring of ACL initialization within OCFS2 during inode creation. It aims to prevent a deadlock in `ocfs2_init_acl` by pre-calculating ACLs before locking. Furthermore, it addresses the use of `ip_xattr_sem` lock within `ocfs2_xattr_set_handle`, and I see the patch removes it, because it is only called on new inodes. Effectively, the patch modifies how ACLs are calculated and set when new inodes are created – things like `mknod`, `mkdir`, `create`, `symlink`, and `reflink`. This clearly affects the core OCFS2 logic and is reachable through standard VFS syscalls when operating on an OCFS2 filesystem. The "WorthFuzzing" flag confirms this is a good area to focus on. So, the enable configs are `OCFS2_FS` and `CONFIGFS_FS`. Right, let's submit these results with `set-results`. |
| 34/2 | 2026/07/30 08:09 | tool | set-results |
0mArgs:{
"EnableConfigs": [
"OCFS2_FS",
"CONFIGFS_FS"
],
"FocusSymbols": [
"ocfs2_init_security_and_acl",
"ocfs2_init_acl",
"ocfs2_acl_init_prepare",
"ocfs2_calc_xattr_init",
"ocfs2_xattr_set_handle"
],
"Reasoning": "The patch refactors ACL initialization during inode creation in OCFS2 to prevent deadlocks. It modifies how ACLs are calculated and set for new inodes (e.g., via mknod, mkdir, create, symlink, reflink). The changes are in core OCFS2 logic and are reachable via standard VFS syscalls when operating on an OCFS2 filesystem.",
"WorthFuzzing": true
}Results: {
"EnableConfigs": [
"OCFS2_FS",
"CONFIGFS_FS"
],
"FocusSymbols": [
"ocfs2_init_security_and_acl",
"ocfs2_init_acl",
"ocfs2_acl_init_prepare",
"ocfs2_calc_xattr_init",
"ocfs2_xattr_set_handle"
],
"Reasoning": "The patch refactors ACL initialization during inode creation in OCFS2 to prevent deadlocks. It modifies how ACLs are calculated and set for new inodes (e.g., via mknod, mkdir, create, symlink, reflink). The changes are in core OCFS2 logic and are reachable via standard VFS syscalls when operating on an OCFS2 filesystem.",
"WorthFuzzing": true
} |
| Total Calls | Total Tokens | Avg Tokens | Total Duration (Seconds) | Avg Duration (Seconds) |
|---|
| Total Calls | Total Duration (Seconds) | Avg Duration (Seconds) |
|---|