AI Trajectory

null

{
  "EnableConfigs": [
    "IO_URING"
  ],
  "FocusSymbols": [
    "io_fremovexattr_prep",
    "io_fremovexattr",
    "io_flistxattr_prep",
    "io_flistxattr",
    "file_listxattr",
    "file_removexattr"
  ],
  "Reasoning": "The patch adds support for IORING_OP_FREMOVEXATTR and IORING_OP_FLISTXATTR to io_uring. It modifies core io_uring and xattr logic, making it highly functional and worth fuzzing.",
  "WorthFuzzing": true
}

null

{
  "PatchDiff": "commit 962df2ce4eddf634753572feefec39c87c65ef58\nAuthor: syz-cluster \u003ctriage@syzkaller.com\u003e\nDate:   Wed Jul 22 06:07:07 2026 +0000\n\n    syz-cluster: applied patch under review\n\ndiff --git a/fs/internal.h b/fs/internal.h\nindex 355d93f9220861..ee86b24db79ad2 100644\n--- a/fs/internal.h\n+++ b/fs/internal.h\n@@ -297,6 +297,8 @@ int filename_setxattr(int dfd, struct filename *filename,\n \t\t      unsigned int lookup_flags, struct kernel_xattr_ctx *ctx);\n int setxattr_copy(const char __user *name, struct kernel_xattr_ctx *ctx);\n int import_xattr_name(struct xattr_name *kname, const char __user *name);\n+ssize_t file_listxattr(struct file *f, char __user *list, size_t size);\n+int file_removexattr(struct file *f, struct xattr_name *kname);\n \n int may_write_xattr(struct mnt_idmap *idmap, struct inode *inode);\n \ndiff --git a/fs/xattr.c b/fs/xattr.c\nindex d5897911520075..31b8a5eeec1e8c 100644\n--- a/fs/xattr.c\n+++ b/fs/xattr.c\n@@ -953,7 +953,6 @@ listxattr(struct dentry *d, char __user *list, size_t size)\n \treturn error;\n }\n \n-static\n ssize_t file_listxattr(struct file *f, char __user *list, size_t size)\n {\n \taudit_file(f);\n@@ -1036,7 +1035,7 @@ removexattr(struct mnt_idmap *idmap, struct dentry *d, const char *name)\n \treturn vfs_removexattr(idmap, d, name);\n }\n \n-static int file_removexattr(struct file *f, struct xattr_name *kname)\n+int file_removexattr(struct file *f, struct xattr_name *kname)\n {\n \tint error = mnt_want_write_file(f);\n \ndiff --git a/include/uapi/linux/io_uring.h b/include/uapi/linux/io_uring.h\nindex 909fb7aea638eb..805f1e31f49251 100644\n--- a/include/uapi/linux/io_uring.h\n+++ b/include/uapi/linux/io_uring.h\n@@ -318,6 +318,8 @@ enum io_uring_op {\n \tIORING_OP_PIPE,\n \tIORING_OP_NOP128,\n \tIORING_OP_URING_CMD128,\n+\tIORING_OP_FREMOVEXATTR,\n+\tIORING_OP_FLISTXATTR,\n \n \t/* this goes last, obviously */\n \tIORING_OP_LAST,\ndiff --git a/io_uring/opdef.c b/io_uring/opdef.c\nindex 4e58eb1344eaa3..25d9229d8fc002 100644\n--- a/io_uring/opdef.c\n+++ b/io_uring/opdef.c\n@@ -591,6 +591,16 @@ const struct io_issue_def io_issue_defs[] = {\n \t\t.prep\t\t\t= io_uring_cmd_prep,\n \t\t.issue\t\t\t= io_uring_cmd,\n \t},\n+\t[IORING_OP_FREMOVEXATTR] = {\n+\t\t.needs_file\t\t= 1,\n+\t\t.prep\t\t\t= io_fremovexattr_prep,\n+\t\t.issue\t\t\t= io_fremovexattr,\n+\t},\n+\t[IORING_OP_FLISTXATTR] = {\n+\t\t.needs_file\t\t= 1,\n+\t\t.prep\t\t\t= io_flistxattr_prep,\n+\t\t.issue\t\t\t= io_flistxattr,\n+\t},\n };\n \n const struct io_cold_def io_cold_defs[] = {\n@@ -849,6 +859,14 @@ const struct io_cold_def io_cold_defs[] = {\n \t\t.sqe_copy\t\t= io_uring_cmd_sqe_copy,\n \t\t.cleanup\t\t= io_uring_cmd_cleanup,\n \t},\n+\t[IORING_OP_FREMOVEXATTR] = {\n+\t\t.name\t\t\t= \"FREMOVEXATTR\",\n+\t\t.cleanup\t\t= io_xattr_cleanup,\n+\t},\n+\t[IORING_OP_FLISTXATTR] = {\n+\t\t.name\t\t\t= \"FLISTXATTR\",\n+\t\t.cleanup\t\t= io_xattr_cleanup,\n+\t},\n };\n \n const char *io_uring_get_opcode(u8 opcode)\ndiff --git a/io_uring/xattr.c b/io_uring/xattr.c\nindex 5303df3f247f4b..9b410f91ef4378 100644\n--- a/io_uring/xattr.c\n+++ b/io_uring/xattr.c\n@@ -195,3 +195,77 @@ int io_setxattr(struct io_kiocb *req, unsigned int issue_flags)\n \tio_xattr_finish(req, ret);\n \treturn IOU_COMPLETE;\n }\n+\n+int io_fremovexattr_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)\n+{\n+\tstruct io_xattr *ix = io_kiocb_to_cmd(req, struct io_xattr);\n+\tconst char __user *name;\n+\tint ret;\n+\n+\tINIT_DELAYED_FILENAME(\u0026ix-\u003efilename);\n+\tname = u64_to_user_ptr(READ_ONCE(sqe-\u003eaddr));\n+\n+\tif (READ_ONCE(sqe-\u003eaddr2) || READ_ONCE(sqe-\u003elen) || READ_ONCE(sqe-\u003exattr_flags))\n+\t\treturn -EINVAL;\n+\n+\tix-\u003ectx.kname = kmalloc_obj(*ix-\u003ectx.kname);\n+\tif (!ix-\u003ectx.kname)\n+\t\treturn -ENOMEM;\n+\n+\tret = import_xattr_name(ix-\u003ectx.kname, name);\n+\tif (ret) {\n+\t\tkfree(ix-\u003ectx.kname);\n+\t\treturn ret;\n+\t}\n+\n+\treq-\u003eflags |= REQ_F_NEED_CLEANUP;\n+\treq-\u003eflags |= REQ_F_FORCE_ASYNC;\n+\treturn 0;\n+}\n+\n+int io_fremovexattr(struct io_kiocb *req, unsigned int issue_flags)\n+{\n+\tstruct io_xattr *ix = io_kiocb_to_cmd(req, struct io_xattr);\n+\tint ret;\n+\n+\tWARN_ON_ONCE(issue_flags \u0026 IO_URING_F_NONBLOCK);\n+\n+\tret = file_removexattr(req-\u003efile, ix-\u003ectx.kname);\n+\tio_xattr_finish(req, ret);\n+\treturn IOU_COMPLETE;\n+}\n+\n+int io_flistxattr_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)\n+{\n+\tstruct io_xattr *ix = io_kiocb_to_cmd(req, struct io_xattr);\n+\n+\tINIT_DELAYED_FILENAME(\u0026ix-\u003efilename);\n+\tix-\u003ectx.kname = NULL;\n+\tix-\u003ectx.kvalue = NULL;\n+\n+\tif (READ_ONCE(sqe-\u003eaddr))\n+\t\treturn -EINVAL;\n+\n+\tix-\u003ectx.value = u64_to_user_ptr(READ_ONCE(sqe-\u003eaddr2));\n+\tix-\u003ectx.size = READ_ONCE(sqe-\u003elen);\n+\tix-\u003ectx.flags = READ_ONCE(sqe-\u003exattr_flags);\n+\n+\tif (ix-\u003ectx.flags)\n+\t\treturn -EINVAL;\n+\n+\treq-\u003eflags |= REQ_F_NEED_CLEANUP;\n+\treq-\u003eflags |= REQ_F_FORCE_ASYNC;\n+\treturn 0;\n+}\n+\n+int io_flistxattr(struct io_kiocb *req, unsigned int issue_flags)\n+{\n+\tstruct io_xattr *ix = io_kiocb_to_cmd(req, struct io_xattr);\n+\tint ret;\n+\n+\tWARN_ON_ONCE(issue_flags \u0026 IO_URING_F_NONBLOCK);\n+\n+\tret = file_listxattr(req-\u003efile, ix-\u003ectx.value, ix-\u003ectx.size);\n+\tio_xattr_finish(req, ret);\n+\treturn IOU_COMPLETE;\n+}\ndiff --git a/io_uring/xattr.h b/io_uring/xattr.h\nindex 9b459d2ae90c5a..d2487b49a5d21a 100644\n--- a/io_uring/xattr.h\n+++ b/io_uring/xattr.h\n@@ -13,3 +13,9 @@ int io_fgetxattr(struct io_kiocb *req, unsigned int issue_flags);\n \n int io_getxattr_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe);\n int io_getxattr(struct io_kiocb *req, unsigned int issue_flags);\n+\n+int io_fremovexattr_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe);\n+int io_fremovexattr(struct io_kiocb *req, unsigned int issue_flags);\n+\n+int io_flistxattr_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe);\n+int io_flistxattr(struct io_kiocb *req, unsigned int issue_flags);\ndiff --git a/tools/include/uapi/linux/io_uring.h b/tools/include/uapi/linux/io_uring.h\nindex f1c16f81774200..79bf7c22009dbb 100644\n--- a/tools/include/uapi/linux/io_uring.h\n+++ b/tools/include/uapi/linux/io_uring.h\n@@ -253,6 +253,19 @@ enum io_uring_op {\n \tIORING_OP_FUTEX_WAIT,\n \tIORING_OP_FUTEX_WAKE,\n \tIORING_OP_FUTEX_WAITV,\n+\tIORING_OP_FIXED_FD_INSTALL,\n+\tIORING_OP_FTRUNCATE,\n+\tIORING_OP_BIND,\n+\tIORING_OP_LISTEN,\n+\tIORING_OP_RECV_ZC,\n+\tIORING_OP_EPOLL_WAIT,\n+\tIORING_OP_READV_FIXED,\n+\tIORING_OP_WRITEV_FIXED,\n+\tIORING_OP_PIPE,\n+\tIORING_OP_NOP128,\n+\tIORING_OP_URING_CMD128,\n+\tIORING_OP_FREMOVEXATTR,\n+\tIORING_OP_FLISTXATTR,\n \n \t/* this goes last, obviously */\n \tIORING_OP_LAST,\n"
}

best-expensive

null

{
  "EnableConfigs": [
    "IO_URING"
  ],
  "FocusSymbols": [
    "io_fremovexattr_prep",
    "io_fremovexattr",
    "io_flistxattr_prep",
    "io_flistxattr",
    "file_listxattr",
    "file_removexattr"
  ],
  "Reasoning": "The patch adds support for IORING_OP_FREMOVEXATTR and IORING_OP_FLISTXATTR to io_uring. It modifies core io_uring and xattr logic, making it highly functional and worth fuzzing.",
  "WorthFuzzing": true
}

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).

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.
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.
   Do not list too generic configs (we already have them enabled). Only list those that
   specifically cover the modified code. 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.

For your convenience, here is the diff of the changes:
commit 962df2ce4eddf634753572feefec39c87c65ef58
Author: syz-cluster <triage@syzkaller.com>
Date:   Wed Jul 22 06:07:07 2026 +0000

    syz-cluster: applied patch under review

diff --git a/fs/internal.h b/fs/internal.h
index 355d93f9220861..ee86b24db79ad2 100644
--- a/fs/internal.h
+++ b/fs/internal.h
@@ -297,6 +297,8 @@ int filename_setxattr(int dfd, struct filename *filename,
 		      unsigned int lookup_flags, struct kernel_xattr_ctx *ctx);
 int setxattr_copy(const char __user *name, struct kernel_xattr_ctx *ctx);
 int import_xattr_name(struct xattr_name *kname, const char __user *name);
+ssize_t file_listxattr(struct file *f, char __user *list, size_t size);
+int file_removexattr(struct file *f, struct xattr_name *kname);
 
 int may_write_xattr(struct mnt_idmap *idmap, struct inode *inode);
 
diff --git a/fs/xattr.c b/fs/xattr.c
index d5897911520075..31b8a5eeec1e8c 100644
--- a/fs/xattr.c
+++ b/fs/xattr.c
@@ -953,7 +953,6 @@ listxattr(struct dentry *d, char __user *list, size_t size)
 	return error;
 }
 
-static
 ssize_t file_listxattr(struct file *f, char __user *list, size_t size)
 {
 	audit_file(f);
@@ -1036,7 +1035,7 @@ removexattr(struct mnt_idmap *idmap, struct dentry *d, const char *name)
 	return vfs_removexattr(idmap, d, name);
 }
 
-static int file_removexattr(struct file *f, struct xattr_name *kname)
+int file_removexattr(struct file *f, struct xattr_name *kname)
 {
 	int error = mnt_want_write_file(f);
 
diff --git a/include/uapi/linux/io_uring.h b/include/uapi/linux/io_uring.h
index 909fb7aea638eb..805f1e31f49251 100644
--- a/include/uapi/linux/io_uring.h
+++ b/include/uapi/linux/io_uring.h
@@ -318,6 +318,8 @@ enum io_uring_op {
 	IORING_OP_PIPE,
 	IORING_OP_NOP128,
 	IORING_OP_URING_CMD128,
+	IORING_OP_FREMOVEXATTR,
+	IORING_OP_FLISTXATTR,
 
 	/* this goes last, obviously */
 	IORING_OP_LAST,
diff --git a/io_uring/opdef.c b/io_uring/opdef.c
index 4e58eb1344eaa3..25d9229d8fc002 100644
--- a/io_uring/opdef.c
+++ b/io_uring/opdef.c
@@ -591,6 +591,16 @@ const struct io_issue_def io_issue_defs[] = {
 		.prep			= io_uring_cmd_prep,
 		.issue			= io_uring_cmd,
 	},
+	[IORING_OP_FREMOVEXATTR] = {
+		.needs_file		= 1,
+		.prep			= io_fremovexattr_prep,
+		.issue			= io_fremovexattr,
+	},
+	[IORING_OP_FLISTXATTR] = {
+		.needs_file		= 1,
+		.prep			= io_flistxattr_prep,
+		.issue			= io_flistxattr,
+	},
 };
 
 const struct io_cold_def io_cold_defs[] = {
@@ -849,6 +859,14 @@ const struct io_cold_def io_cold_defs[] = {
 		.sqe_copy		= io_uring_cmd_sqe_copy,
 		.cleanup		= io_uring_cmd_cleanup,
 	},
+	[IORING_OP_FREMOVEXATTR] = {
+		.name			= "FREMOVEXATTR",
+		.cleanup		= io_xattr_cleanup,
+	},
+	[IORING_OP_FLISTXATTR] = {
+		.name			= "FLISTXATTR",
+		.cleanup		= io_xattr_cleanup,
+	},
 };
 
 const char *io_uring_get_opcode(u8 opcode)
diff --git a/io_uring/xattr.c b/io_uring/xattr.c
index 5303df3f247f4b..9b410f91ef4378 100644
--- a/io_uring/xattr.c
+++ b/io_uring/xattr.c
@@ -195,3 +195,77 @@ int io_setxattr(struct io_kiocb *req, unsigned int issue_flags)
 	io_xattr_finish(req, ret);
 	return IOU_COMPLETE;
 }
+
+int io_fremovexattr_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
+{
+	struct io_xattr *ix = io_kiocb_to_cmd(req, struct io_xattr);
+	const char __user *name;
+	int ret;
+
+	INIT_DELAYED_FILENAME(&ix->filename);
+	name = u64_to_user_ptr(READ_ONCE(sqe->addr));
+
+	if (READ_ONCE(sqe->addr2) || READ_ONCE(sqe->len) || READ_ONCE(sqe->xattr_flags))
+		return -EINVAL;
+
+	ix->ctx.kname = kmalloc_obj(*ix->ctx.kname);
+	if (!ix->ctx.kname)
+		return -ENOMEM;
+
+	ret = import_xattr_name(ix->ctx.kname, name);
+	if (ret) {
+		kfree(ix->ctx.kname);
+		return ret;
+	}
+
+	req->flags |= REQ_F_NEED_CLEANUP;
+	req->flags |= REQ_F_FORCE_ASYNC;
+	return 0;
+}
+
+int io_fremovexattr(struct io_kiocb *req, unsigned int issue_flags)
+{
+	struct io_xattr *ix = io_kiocb_to_cmd(req, struct io_xattr);
+	int ret;
+
+	WARN_ON_ONCE(issue_flags & IO_URING_F_NONBLOCK);
+
+	ret = file_removexattr(req->file, ix->ctx.kname);
+	io_xattr_finish(req, ret);
+	return IOU_COMPLETE;
+}
+
+int io_flistxattr_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
+{
+	struct io_xattr *ix = io_kiocb_to_cmd(req, struct io_xattr);
+
+	INIT_DELAYED_FILENAME(&ix->filename);
+	ix->ctx.kname = NULL;
+	ix->ctx.kvalue = NULL;
+
+	if (READ_ONCE(sqe->addr))
+		return -EINVAL;
+
+	ix->ctx.value = u64_to_user_ptr(READ_ONCE(sqe->addr2));
+	ix->ctx.size = READ_ONCE(sqe->len);
+	ix->ctx.flags = READ_ONCE(sqe->xattr_flags);
+
+	if (ix->ctx.flags)
+		return -EINVAL;
+
+	req->flags |= REQ_F_NEED_CLEANUP;
+	req->flags |= REQ_F_FORCE_ASYNC;
+	return 0;
+}
+
+int io_flistxattr(struct io_kiocb *req, unsigned int issue_flags)
+{
+	struct io_xattr *ix = io_kiocb_to_cmd(req, struct io_xattr);
+	int ret;
+
+	WARN_ON_ONCE(issue_flags & IO_URING_F_NONBLOCK);
+
+	ret = file_listxattr(req->file, ix->ctx.value, ix->ctx.size);
+	io_xattr_finish(req, ret);
+	return IOU_COMPLETE;
+}
diff --git a/io_uring/xattr.h b/io_uring/xattr.h
index 9b459d2ae90c5a..d2487b49a5d21a 100644
--- a/io_uring/xattr.h
+++ b/io_uring/xattr.h
@@ -13,3 +13,9 @@ int io_fgetxattr(struct io_kiocb *req, unsigned int issue_flags);
 
 int io_getxattr_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe);
 int io_getxattr(struct io_kiocb *req, unsigned int issue_flags);
+
+int io_fremovexattr_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe);
+int io_fremovexattr(struct io_kiocb *req, unsigned int issue_flags);
+
+int io_flistxattr_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe);
+int io_flistxattr(struct io_kiocb *req, unsigned int issue_flags);
diff --git a/tools/include/uapi/linux/io_uring.h b/tools/include/uapi/linux/io_uring.h
index f1c16f81774200..79bf7c22009dbb 100644
--- a/tools/include/uapi/linux/io_uring.h
+++ b/tools/include/uapi/linux/io_uring.h
@@ -253,6 +253,19 @@ enum io_uring_op {
 	IORING_OP_FUTEX_WAIT,
 	IORING_OP_FUTEX_WAKE,
 	IORING_OP_FUTEX_WAITV,
+	IORING_OP_FIXED_FD_INSTALL,
+	IORING_OP_FTRUNCATE,
+	IORING_OP_BIND,
+	IORING_OP_LISTEN,
+	IORING_OP_RECV_ZC,
+	IORING_OP_EPOLL_WAIT,
+	IORING_OP_READV_FIXED,
+	IORING_OP_WRITEV_FIXED,
+	IORING_OP_PIPE,
+	IORING_OP_NOP128,
+	IORING_OP_URING_CMD128,
+	IORING_OP_FREMOVEXATTR,
+	IORING_OP_FLISTXATTR,
 
 	/* this goes last, obviously */
 	IORING_OP_LAST,

gemini-3.1-pro-preview

null

null

							input: 4590
							output: 28
							thoughts: 309
						

**My Assessment of the io_uring Xattr Patch**

Okay, so we have a new patch landed for `io_uring` that’s introducing support for `IORING_OP_FREMOVEXATTR` and `IORING_OP_FLISTXATTR`. Excellent! This looks like it touches some key areas, which is what I'd expect: `fs/internal.h`, `fs/xattr.c`, the UAPI headers (`include/uapi/linux/io_uring.h` and the tool's include), and the relevant io_uring implementation files (`io_uring/opdef.c`, `io_uring/xattr.c`, `io_uring/xattr.h`). This is a good sign; we're properly expanding the interfaces here.

Essentially, these new opcodes (`IORING_OP_FREMOVEXATTR`, `IORING_OP_FLISTXATTR`) are being mapped directly to `io_fremovexattr` and `io_flistxattr` within `io_uring/xattr.c`. Looks straightforward enough, and from the description, it seems functionally complete. This is definitely something that warrants some serious fuzzing and testing.

Now, let's nail down what the key symbols are. I'm going to want to focus on these:
*   `io_fremovexattr_prep`
*   `io_fremovexattr`
*   `io_flistxattr_prep`
*   `io_flistxattr`

I need to quickly check `io_uring/xattr.c` to see if there are any other specific configurations I need to be aware of. The main one I'm expecting is `CONFIG_IO_URING`, but there may be more specific xattr-related flags that impact the behavior. Let's fire up `grepper` and see what we can find. It is a good way to see if we missed anything.

no matches

{
  "Expression": "CONFIG_.*XATTR",
  "PathPrefix": "io_uring"
}

{
  "error": "no matches"
}

gemini-3.1-pro-preview

null

null

							input: 5364
							output: 28
							thoughts: 24
						

Here's my thought process, summarized as you requested:

**Kconfig Hunt for io_uring Configuration**

Okay, so I need to find where the kernel configuration options for `io_uring` are defined. My first instinct, given the nature of `io_uring`, is to check the `io_uring/Kconfig` file. That seems like the most logical place, given its very name. However, it's also a possibility that some core initialization-related settings might be in the more general `init/Kconfig` file, so I need to consider both. I'll start with `io_uring/Kconfig` and if it is not present there, I'll then move onto `init/Kconfig`.

{
  "Expression": "CONFIG_IO_URING",
  "PathPrefix": "io_uring"
}

{
  "Output": "io_uring/Makefile=7=endif\nio_uring/Makefile-8-\nio_uring/Makefile:9:obj-$(CONFIG_IO_URING)\t\t+= io_uring.o opdef.o kbuf.o rsrc.o notif.o \\\nio_uring/Makefile-10-\t\t\t\t\ttctx.o filetable.o rw.o poll.o \\\n--\nio_uring/Makefile-18-\nio_uring/Makefile:19:obj-$(CONFIG_IO_URING_ZCRX)\t+= zcrx.o\nio_uring/Makefile-20-obj-$(CONFIG_IO_WQ)\t\t+= io-wq.o\n--\nio_uring/Makefile=25=obj-$(CONFIG_PROC_FS) += fdinfo.o\nio_uring/Makefile:26:obj-$(CONFIG_IO_URING_MOCK_FILE) += mock_file.o\nio_uring/Makefile:27:obj-$(CONFIG_IO_URING_BPF) += bpf_filter.o\nio_uring/Makefile:28:obj-$(CONFIG_IO_URING_BPF_OPS) += bpf-ops.o\n--\nio_uring/bpf-ops.h=13=struct io_uring_bpf_ops {\n--\nio_uring/bpf-ops.h-19-\nio_uring/bpf-ops.h:20:#ifdef CONFIG_IO_URING_BPF_OPS\nio_uring/bpf-ops.h-21-void io_unregister_bpf_ops(struct io_ring_ctx *ctx);\n--\nio_uring/bpf_filter.h-6-\nio_uring/bpf_filter.h:7:#ifdef CONFIG_IO_URING_BPF\nio_uring/bpf_filter.h-8-\n--\nio_uring/bpf_filter.h=42=static inline void io_bpf_filter_clone(struct io_restriction *dst,\n--\nio_uring/bpf_filter.h-45-}\nio_uring/bpf_filter.h:46:#endif /* CONFIG_IO_URING_BPF */\nio_uring/bpf_filter.h-47-\n--\nio_uring/zcrx.h=54=struct io_zcrx_ifq {\n--\nio_uring/zcrx.h-85-\nio_uring/zcrx.h:86:#if defined(CONFIG_IO_URING_ZCRX)\nio_uring/zcrx.h-87-int io_zcrx_ctrl(struct io_ring_ctx *ctx, void __user *arg, unsigned nr_arg);\n"
}

gemini-3.1-pro-preview

null

null

							input: 6217
							output: 27
							thoughts: 93
						

Okay, here's my breakdown of what I'm looking at:

**Investigating Extended Attribute (xattr) Support within the `IO_URING` Context**

Right, so the system is configured to use `IO_URING`, which is a key starting point. My primary concern right now revolves around how extended attributes are handled within this asynchronous I/O framework. Specifically, I need to get a clear picture of the xattr functionality.

I've been given a list of focus symbols: `io_fremovexattr_prep`, `io_fremovexattr`, `io_flistxattr_prep`, `io_flistxattr`, `file_listxattr`, and `file_removexattr`. These are the functions I immediately need to zero in on. They look like the core building blocks for removing and listing extended attributes on files, both in a synchronous and potentially asynchronous (`prep` suggests preperation for async). I'll need to understand their roles within the `IO_URING` ecosystem.

Before I delve into the details of these symbols, I should double check to ensure this is the *only* configuration for xattr. It would be a nightmare to assume this is the only one. Just want to make sure I am not missing a secondary setting.

{
  "Expression": "CONFIG_.*XATTR",
  "PathPrefix": "fs/"
}

{
  "Output": "fs/erofs/Makefile=4=erofs-objs := super.o inode.o data.o namei.o dir.o sysfs.o\nfs/erofs/Makefile:5:erofs-$(CONFIG_EROFS_FS_XATTR) += xattr.o\nfs/erofs/Makefile-6-erofs-$(CONFIG_EROFS_FS_ZIP) += decompressor.o zmap.o zdata.o zutil.o\n--\nfs/erofs/internal.h=87=struct erofs_sb_info {\n--\nfs/erofs/internal.h-111-\tu32 meta_blkaddr;\nfs/erofs/internal.h:112:#ifdef CONFIG_EROFS_FS_XATTR\nfs/erofs/internal.h-113-\tu32 xattr_blkaddr;\n--\nfs/erofs/super.c=250=static int erofs_read_superblock(struct super_block *sb)\n--\nfs/erofs/super.c-303-\tsbi-\u003emeta_blkaddr = le32_to_cpu(dsb-\u003emeta_blkaddr);\nfs/erofs/super.c:304:#ifdef CONFIG_EROFS_FS_XATTR\nfs/erofs/super.c-305-\tsbi-\u003exattr_blkaddr = le32_to_cpu(dsb-\u003exattr_blkaddr);\n--\nfs/erofs/super.c=374=static void erofs_default_options(struct erofs_sb_info *sbi)\n--\nfs/erofs/super.c-379-#endif\nfs/erofs/super.c:380:\tif (IS_ENABLED(CONFIG_EROFS_FS_XATTR))\nfs/erofs/super.c-381-\t\tset_opt(\u0026sbi-\u003eopt, XATTR_USER);\n--\nfs/erofs/super.c=440=static int erofs_fc_parse_param(struct fs_context *fc,\n--\nfs/erofs/super.c-453-\tcase Opt_user_xattr:\nfs/erofs/super.c:454:\t\tif (!IS_ENABLED(CONFIG_EROFS_FS_XATTR))\nfs/erofs/super.c-455-\t\t\terrorfc(fc, \"{,no}user_xattr options not supported\");\n--\nfs/erofs/super.c=1022=static int erofs_show_options(struct seq_file *seq, struct dentry *root)\n--\nfs/erofs/super.c-1026-\nfs/erofs/super.c:1027:\tif (IS_ENABLED(CONFIG_EROFS_FS_XATTR))\nfs/erofs/super.c-1028-\t\tseq_puts(seq, test_opt(opt, XATTR_USER) ?\n--\nfs/erofs/xattr.h-12-\nfs/erofs/xattr.h:13:#ifdef CONFIG_EROFS_FS_XATTR\nfs/erofs/xattr.h-14-extern const struct xattr_handler * const erofs_xattr_handlers[];\n--\nfs/erofs/xattr.h=21=static inline void erofs_xattr_prefixes_cleanup(struct super_block *sb) {}\n--\nfs/erofs/xattr.h-24-#define erofs_xattr_handlers (NULL)\nfs/erofs/xattr.h:25:#endif\t/* !CONFIG_EROFS_FS_XATTR */\nfs/erofs/xattr.h-26-\n--\nfs/ext2/Makefile=12=CFLAGS_trace.o := -I$(src)\nfs/ext2/Makefile-13-\nfs/ext2/Makefile:14:ext2-$(CONFIG_EXT2_FS_XATTR)\t += xattr.o xattr_user.o xattr_trusted.o\nfs/ext2/Makefile-15-ext2-$(CONFIG_EXT2_FS_POSIX_ACL) += acl.o\n--\nfs/ext2/ext2.h=627=struct ext2_inode_info {\n--\nfs/ext2/ext2.h-650-\t__u32\ti_dir_start_lookup;\nfs/ext2/ext2.h:651:#ifdef CONFIG_EXT2_FS_XATTR\nfs/ext2/ext2.h-652-\t/*\n--\nfs/ext2/super.c=226=static void init_once(void *foo)\n--\nfs/ext2/super.c-230-\trwlock_init(\u0026ei-\u003ei_meta_lock);\nfs/ext2/super.c:231:#ifdef CONFIG_EXT2_FS_XATTR\nfs/ext2/super.c-232-\tinit_rwsem(\u0026ei-\u003exattr_sem);\n--\nfs/ext2/super.c=261=static int ext2_show_options(struct seq_file *seq, struct dentry *root)\n--\nfs/ext2/super.c-307-\nfs/ext2/super.c:308:#ifdef CONFIG_EXT2_FS_XATTR\nfs/ext2/super.c-309-\tif (test_opt(sb, XATTR_USER))\n--\nfs/ext2/super.c=514=static int ext2_parse_param(struct fs_context *fc, struct fs_parameter *param)\n--\nfs/ext2/super.c-567-\t\tbreak;\nfs/ext2/super.c:568:#ifdef CONFIG_EXT2_FS_XATTR\nfs/ext2/super.c-569-\tcase Opt_user_xattr:\n--\nfs/ext2/super.c=809=static void ext2_set_options(struct fs_context *fc, struct ext2_sb_info *sbi)\n--\nfs/ext2/super.c-830-\nfs/ext2/super.c:831:#ifdef CONFIG_EXT2_FS_XATTR\nfs/ext2/super.c-832-\tif (!ctx_parsed_mount_opt(ctx, EXT2_MOUNT_XATTR_USER) \u0026\u0026\n--\nfs/ext2/super.c=864=static int ext2_fill_super(struct super_block *sb, struct fs_context *fc)\n--\nfs/ext2/super.c-1161-\nfs/ext2/super.c:1162:#ifdef CONFIG_EXT2_FS_XATTR\nfs/ext2/super.c-1163-\tsbi-\u003es_ea_block_cache = ext2_xattr_create_cache();\n--\nfs/ext2/xattr.h=57=struct mb_cache;\nfs/ext2/xattr.h-58-\nfs/ext2/xattr.h:59:# ifdef CONFIG_EXT2_FS_XATTR\nfs/ext2/xattr.h-60-\n--\nfs/ext2/xattr.h=75=extern const struct xattr_handler * const ext2_xattr_handlers[];\nfs/ext2/xattr.h-76-\nfs/ext2/xattr.h:77:# else  /* CONFIG_EXT2_FS_XATTR */\nfs/ext2/xattr.h-78-\n--\nfs/ext2/xattr.h=98=static inline void ext2_xattr_destroy_cache(struct mb_cache *cache)\n--\nfs/ext2/xattr.h-104-\nfs/ext2/xattr.h:105:# endif  /* CONFIG_EXT2_FS_XATTR */\nfs/ext2/xattr.h-106-\n--\nfs/f2fs/Makefile=7=f2fs-$(CONFIG_F2FS_STAT_FS) += debug.o\nfs/f2fs/Makefile:8:f2fs-$(CONFIG_F2FS_FS_XATTR) += xattr.o\nfs/f2fs/Makefile-9-f2fs-$(CONFIG_F2FS_FS_POSIX_ACL) += acl.o\n--\nfs/f2fs/super.c=790=static int f2fs_parse_param(struct fs_context *fc, struct fs_parameter *param)\n--\nfs/f2fs/super.c-828-\t\tbreak;\nfs/f2fs/super.c:829:#ifdef CONFIG_F2FS_FS_XATTR\nfs/f2fs/super.c-830-\tcase Opt_user_xattr:\n--\nfs/f2fs/super.c=2375=static int f2fs_show_options(struct seq_file *seq, struct dentry *root)\n--\nfs/f2fs/super.c-2405-\t}\nfs/f2fs/super.c:2406:#ifdef CONFIG_F2FS_FS_XATTR\nfs/f2fs/super.c-2407-\tif (test_opt(sbi, XATTR_USER))\n--\nfs/f2fs/super.c=2549=static void default_options(struct f2fs_sb_info *sbi, bool remount)\n--\nfs/f2fs/super.c-2601-\nfs/f2fs/super.c:2602:#ifdef CONFIG_F2FS_FS_XATTR\nfs/f2fs/super.c-2603-\tset_opt(sbi, XATTR_USER);\n--\nfs/f2fs/xattr.h=48=struct f2fs_xattr_entry {\n--\nfs/f2fs/xattr.h-123-\nfs/f2fs/xattr.h:124:#ifdef CONFIG_F2FS_FS_XATTR\nfs/f2fs/xattr.h-125-extern const struct xattr_handler f2fs_xattr_user_handler;\n--\nfs/jffs2/Makefile=14=jffs2-$(CONFIG_JFFS2_FS_WRITEBUFFER)\t+= wbuf.o\nfs/jffs2/Makefile:15:jffs2-$(CONFIG_JFFS2_FS_XATTR)\t\t+= xattr.o xattr_trusted.o xattr_user.o\nfs/jffs2/Makefile-16-jffs2-$(CONFIG_JFFS2_FS_SECURITY)\t+= security.o\n--\nfs/jffs2/erase.c=206=static inline void jffs2_remove_node_refs_from_ino_list(struct jffs2_sb_info *c,\n--\nfs/jffs2/erase.c-272-\tswitch (ic-\u003eclass) {\nfs/jffs2/erase.c:273:#ifdef CONFIG_JFFS2_FS_XATTR\nfs/jffs2/erase.c-274-\t\tcase RAWNODE_CLASS_XATTR_DATUM:\n--\nfs/jffs2/gc.c=124=int jffs2_garbage_collect_pass(struct jffs2_sb_info *c)\n--\nfs/jffs2/gc.c-328-\nfs/jffs2/gc.c:329:#ifdef CONFIG_JFFS2_FS_XATTR\nfs/jffs2/gc.c-330-\t/* When 'ic' refers xattr_datum/xattr_ref, this node is GCed as xattr.\n--\nfs/jffs2/jffs2_fs_sb.h=49=struct jffs2_sb_info {\n--\nfs/jffs2/jffs2_fs_sb.h-145-\nfs/jffs2/jffs2_fs_sb.h:146:#ifdef CONFIG_JFFS2_FS_XATTR\nfs/jffs2/jffs2_fs_sb.h-147-#define XATTRINDEX_HASHSIZE\t(57)\n--\nfs/jffs2/malloc.c=28=static struct kmem_cache *inode_cache_slab;\nfs/jffs2/malloc.c:29:#ifdef CONFIG_JFFS2_FS_XATTR\nfs/jffs2/malloc.c-30-static struct kmem_cache *xattr_datum_cache;\n--\nfs/jffs2/malloc.c=34=int __init jffs2_create_slab_caches(void)\n--\nfs/jffs2/malloc.c-65-\nfs/jffs2/malloc.c:66:#ifdef CONFIG_JFFS2_FS_XATTR\nfs/jffs2/malloc.c-67-\txattr_datum_cache = KMEM_CACHE(jffs2_xattr_datum, 0);\n--\nfs/jffs2/malloc.c=82=void jffs2_destroy_slab_caches(void)\n--\nfs/jffs2/malloc.c-90-\tkmem_cache_destroy(inode_cache_slab);\nfs/jffs2/malloc.c:91:#ifdef CONFIG_JFFS2_FS_XATTR\nfs/jffs2/malloc.c-92-\tkmem_cache_destroy(xattr_datum_cache);\n--\nfs/jffs2/malloc.c=254=void jffs2_free_inode_cache(struct jffs2_inode_cache *x)\n--\nfs/jffs2/malloc.c-259-\nfs/jffs2/malloc.c:260:#ifdef CONFIG_JFFS2_FS_XATTR\nfs/jffs2/malloc.c-261-struct jffs2_xattr_datum *jffs2_alloc_xattr_datum(void)\n--\nfs/jffs2/nodelist.c=457=void jffs2_del_ino_cache(struct jffs2_sb_info *c, struct jffs2_inode_cache *old)\n--\nfs/jffs2/nodelist.c-460-\nfs/jffs2/nodelist.c:461:#ifdef CONFIG_JFFS2_FS_XATTR\nfs/jffs2/nodelist.c-462-\tBUG_ON(old-\u003exref);\n--\nfs/jffs2/nodelist.h=158=struct jffs2_inode_cache {\n--\nfs/jffs2/nodelist.h-175-\tstruct jffs2_inode_cache *next;\nfs/jffs2/nodelist.h:176:#ifdef CONFIG_JFFS2_FS_XATTR\nfs/jffs2/nodelist.h-177-\tstruct jffs2_xattr_ref *xref;\n--\nfs/jffs2/nodelist.h=441=void jffs2_free_inode_cache(struct jffs2_inode_cache *);\nfs/jffs2/nodelist.h:442:#ifdef CONFIG_JFFS2_FS_XATTR\nfs/jffs2/nodelist.h-443-struct jffs2_xattr_datum *jffs2_alloc_xattr_datum(void);\n--\nfs/jffs2/nodemgmt.c=586=void jffs2_mark_node_obsolete(struct jffs2_sb_info *c, struct jffs2_raw_node_ref *ref)\n--\nfs/jffs2/nodemgmt.c-823-\t\tswitch (ic-\u003eclass) {\nfs/jffs2/nodemgmt.c:824:#ifdef CONFIG_JFFS2_FS_XATTR\nfs/jffs2/nodemgmt.c-825-\t\t\tcase RAWNODE_CLASS_XATTR_DATUM:\n--\nfs/jffs2/scan.c=312=int jffs2_scan_classify_jeb(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb)\n--\nfs/jffs2/scan.c-330-\nfs/jffs2/scan.c:331:#ifdef CONFIG_JFFS2_FS_XATTR\nfs/jffs2/scan.c-332-static int jffs2_scan_xattr_node(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb,\n--\nfs/jffs2/scan.c=447=static int jffs2_scan_eraseblock (struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb,\n--\nfs/jffs2/scan.c-835-\nfs/jffs2/scan.c:836:#ifdef CONFIG_JFFS2_FS_XATTR\nfs/jffs2/scan.c-837-\t\tcase JFFS2_NODETYPE_XATTR:\n--\nfs/jffs2/scan.c-870-\t\t\tbreak;\nfs/jffs2/scan.c:871:#endif\t/* CONFIG_JFFS2_FS_XATTR */\nfs/jffs2/scan.c-872-\n--\nfs/jffs2/summary.c=63=static int jffs2_sum_add_mem(struct jffs2_summary *s, union jffs2_sum_mem *item)\n--\nfs/jffs2/summary.c-83-\t\t\tbreak;\nfs/jffs2/summary.c:84:#ifdef CONFIG_JFFS2_FS_XATTR\nfs/jffs2/summary.c-85-\t\tcase JFFS2_NODETYPE_XATTR:\n--\nfs/jffs2/summary.c=133=int jffs2_sum_add_dirent_mem(struct jffs2_summary *s, struct jffs2_raw_dirent *rd,\n--\nfs/jffs2/summary.c-156-\nfs/jffs2/summary.c:157:#ifdef CONFIG_JFFS2_FS_XATTR\nfs/jffs2/summary.c-158-int jffs2_sum_add_xattr_mem(struct jffs2_summary *s, struct jffs2_raw_xattr *rx, uint32_t ofs)\n--\nfs/jffs2/summary.c=248=int jffs2_sum_add_kvec(struct jffs2_sb_info *c, const struct kvec *invecs,\n--\nfs/jffs2/summary.c-313-\t\t}\nfs/jffs2/summary.c:314:#ifdef CONFIG_JFFS2_FS_XATTR\nfs/jffs2/summary.c-315-\t\tcase JFFS2_NODETYPE_XATTR: {\n--\nfs/jffs2/summary.c=386=static int jffs2_sum_process_sum_data(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb,\n--\nfs/jffs2/summary.c-489-\t\t\t}\nfs/jffs2/summary.c:490:#ifdef CONFIG_JFFS2_FS_XATTR\nfs/jffs2/summary.c-491-\t\t\tcase JFFS2_NODETYPE_XATTR: {\n--\nfs/jffs2/summary.c=674=static int jffs2_sum_write_data(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb,\n--\nfs/jffs2/summary.c-754-\t\t\t}\nfs/jffs2/summary.c:755:#ifdef CONFIG_JFFS2_FS_XATTR\nfs/jffs2/summary.c-756-\t\t\tcase JFFS2_NODETYPE_XATTR: {\n--\nfs/jffs2/xattr.h=66=static inline int is_xattr_ref_dead(struct jffs2_xattr_ref *ref)\n--\nfs/jffs2/xattr.h-70-\nfs/jffs2/xattr.h:71:#ifdef CONFIG_JFFS2_FS_XATTR\nfs/jffs2/xattr.h-72-\n--\nfs/jffs2/xattr.h=101=extern ssize_t jffs2_listxattr(struct dentry *, char *, size_t);\n--\nfs/jffs2/xattr.h-116-\nfs/jffs2/xattr.h:117:#endif /* CONFIG_JFFS2_FS_XATTR */\nfs/jffs2/xattr.h-118-\n--\nfs/nilfs2/nilfs.h=40=struct nilfs_inode_info {\n--\nfs/nilfs2/nilfs.h-51-\nfs/nilfs2/nilfs.h:52:#ifdef CONFIG_NILFS_XATTR\nfs/nilfs2/nilfs.h-53-\t/*\n--\nfs/nilfs2/super.c=1314=static void nilfs_inode_init_once(void *obj)\n--\nfs/nilfs2/super.c-1318-\tINIT_LIST_HEAD(\u0026ii-\u003ei_dirty);\nfs/nilfs2/super.c:1319:#ifdef CONFIG_NILFS_XATTR\nfs/nilfs2/super.c-1320-\tinit_rwsem(\u0026ii-\u003exattr_sem);\n--\nfs/smb/client/Makefile=19=$(obj)/cifs_spnego_negtokeninit.asn1.o: $(obj)/cifs_spnego_negtokeninit.asn1.c $(obj)/cifs_spnego_negtokeninit.asn1.h\nfs/smb/client/Makefile-20-\nfs/smb/client/Makefile:21:cifs-$(CONFIG_CIFS_XATTR) += xattr.o\nfs/smb/client/Makefile-22-\n--\nfs/smb/client/cifs_debug.c=438=static int cifs_debug_data_proc_show(struct seq_file *m, void *v)\n--\nfs/smb/client/cifs_debug.c-482-#endif\nfs/smb/client/cifs_debug.c:483:#ifdef CONFIG_CIFS_XATTR\nfs/smb/client/cifs_debug.c-484-\tseq_printf(m, \",XATTR\");\n--\nfs/smb/client/cifsfs.h=132=int cifs_symlink(struct mnt_idmap *idmap, struct inode *inode,\n--\nfs/smb/client/cifsfs.h-134-\nfs/smb/client/cifsfs.h:135:#ifdef CONFIG_CIFS_XATTR\nfs/smb/client/cifsfs.h-136-extern const struct xattr_handler * const cifs_xattr_handlers[];\n--\nfs/smb/client/cifssmb.c=3085=struct inode *cifs_create_reparse_inode(struct cifs_open_info_data *data,\n--\nfs/smb/client/cifssmb.c-3115-\nfs/smb/client/cifssmb.c:3116:#ifndef CONFIG_CIFS_XATTR\nfs/smb/client/cifssmb.c-3117-\tif (xattr_iov)\n--\nfs/smb/client/cifssmb.c-3131-\nfs/smb/client/cifssmb.c:3132:#ifdef CONFIG_CIFS_XATTR\nfs/smb/client/cifssmb.c-3133-\tif (xattr_iov) {\n--\nfs/smb/client/cifssmb.c=6027=CIFSSMBUnixSetPathInfo(const unsigned int xid, struct cifs_tcon *tcon,\n--\nfs/smb/client/cifssmb.c-6101-\nfs/smb/client/cifssmb.c:6102:#ifdef CONFIG_CIFS_XATTR\nfs/smb/client/cifssmb.c-6103-/*\n--\nfs/smb/client/inode.c=721=static int cifs_sfu_mode(struct cifs_fattr *fattr, const unsigned char *path,\n--\nfs/smb/client/inode.c-723-{\nfs/smb/client/inode.c:724:#ifdef CONFIG_CIFS_XATTR\nfs/smb/client/inode.c-725-\tssize_t rc;\n--\nfs/smb/client/smb1ops.c=532=static int cifs_query_path_info(const unsigned int xid,\n--\nfs/smb/client/smb1ops.c-642-\nfs/smb/client/smb1ops.c:643:#ifdef CONFIG_CIFS_XATTR\nfs/smb/client/smb1ops.c-644-\t/*\n--\nfs/smb/client/smb1ops.c=1393=struct smb_version_operations smb1_operations = {\n--\nfs/smb/client/smb1ops.c-1469-\t.select_sectype = cifs_select_sectype,\nfs/smb/client/smb1ops.c:1470:#ifdef CONFIG_CIFS_XATTR\nfs/smb/client/smb1ops.c-1471-\t.query_all_EAs = CIFSSMBQAllEAs,\n--\nfs/smb/client/smb2ops.c=1031=static int smb2_query_file_info(const unsigned int xid, struct cifs_tcon *tcon,\n--\nfs/smb/client/smb2ops.c-1044-\nfs/smb/client/smb2ops.c:1045:#ifdef CONFIG_CIFS_XATTR\nfs/smb/client/smb2ops.c-1046-static ssize_t\n--\nfs/smb/client/smb2ops.c=5542=struct smb_version_operations smb20_operations = {\n--\nfs/smb/client/smb2ops.c-5625-\t.select_sectype = smb2_select_sectype,\nfs/smb/client/smb2ops.c:5626:#ifdef CONFIG_CIFS_XATTR\nfs/smb/client/smb2ops.c-5627-\t.query_all_EAs = smb2_query_eas,\n--\nfs/smb/client/smb2ops.c=5644=struct smb_version_operations smb21_operations = {\n--\nfs/smb/client/smb2ops.c-5730-\t.select_sectype = smb2_select_sectype,\nfs/smb/client/smb2ops.c:5731:#ifdef CONFIG_CIFS_XATTR\nfs/smb/client/smb2ops.c-5732-\t.query_all_EAs = smb2_query_eas,\n--\nfs/smb/client/smb2ops.c=5748=struct smb_version_operations smb30_operations = {\n--\nfs/smb/client/smb2ops.c-5846-\t.select_sectype = smb2_select_sectype,\nfs/smb/client/smb2ops.c:5847:#ifdef CONFIG_CIFS_XATTR\nfs/smb/client/smb2ops.c-5848-\t.query_all_EAs = smb2_query_eas,\n--\nfs/smb/client/smb2ops.c=5864=struct smb_version_operations smb311_operations = {\n--\nfs/smb/client/smb2ops.c-5962-\t.select_sectype = smb2_select_sectype,\nfs/smb/client/smb2ops.c:5963:#ifdef CONFIG_CIFS_XATTR\nfs/smb/client/smb2ops.c-5964-\t.query_all_EAs = smb2_query_eas,\n--\nfs/squashfs/Makefile=13=squashfs-$(CONFIG_SQUASHFS_DECOMP_MULTI_PERCPU) += decompressor_multi_percpu.o\nfs/squashfs/Makefile:14:squashfs-$(CONFIG_SQUASHFS_XATTR) += xattr.o xattr_id.o\nfs/squashfs/Makefile-15-squashfs-$(CONFIG_SQUASHFS_LZ4) += lz4_wrapper.o\n--\nfs/squashfs/xattr.h-10-\nfs/squashfs/xattr.h:11:#ifdef CONFIG_SQUASHFS_XATTR\nfs/squashfs/xattr.h-12-extern __le64 *squashfs_read_xattr_id_table(struct super_block *, u64,\n--\nfs/ubifs/Makefile=9=ubifs-$(CONFIG_FS_ENCRYPTION) += crypto.o\nfs/ubifs/Makefile:10:ubifs-$(CONFIG_UBIFS_FS_XATTR) += xattr.o\nfs/ubifs/Makefile-11-ubifs-$(CONFIG_UBIFS_FS_AUTHENTICATION) += auth.o\n--\nfs/ubifs/ubifs.h=2034=ssize_t ubifs_xattr_get(struct inode *host, const char *name, void *buf,\n--\nfs/ubifs/ubifs.h-2036-\nfs/ubifs/ubifs.h:2037:#ifdef CONFIG_UBIFS_FS_XATTR\nfs/ubifs/ubifs.h-2038-extern const struct xattr_handler * const ubifs_xattr_handlers[];\n"
}

gemini-3.1-pro-preview

null

null

							input: 14150
							output: 142
							thoughts: 116
						

**IO_URING XATTR Function Investigation**

Okay, so the configuration in play here is definitely `IO_URING`. My current target is understanding how extended attributes (xattrs) are handled with this specific configuration. The focus symbols give me a strong starting point: `io_fremovexattr_prep`, `io_fremovexattr`, `io_flistxattr_prep`, `io_flistxattr`, `file_listxattr`, and `file_removexattr`. These functions are central to removing and listing extended attributes, and the 'io_' prefix strongly suggests they're related to asynchronous I/O with io_uring.

Before I jump in, I'll quickly double-check for any other potentially relevant configurations. Just to be sure I'm not missing anything critical. `CONFIG_IO_URING` seems like the primary driver, but it's always good practice to eliminate any hidden dependencies or interactions.

Once I have a solid grasp on these symbols and their relationship under `IO_URING`, I'll use `set-results` to provide a clear and concise summary of my findings. This will give me a structured approach for documenting the configuration and interactions.

{
  "EnableConfigs": [
    "IO_URING"
  ],
  "FocusSymbols": [
    "io_fremovexattr_prep",
    "io_fremovexattr",
    "io_flistxattr_prep",
    "io_flistxattr",
    "file_listxattr",
    "file_removexattr"
  ],
  "Reasoning": "The patch adds support for IORING_OP_FREMOVEXATTR and IORING_OP_FLISTXATTR to io_uring. It modifies core io_uring and xattr logic, making it highly functional and worth fuzzing.",
  "WorthFuzzing": true
}

{
  "EnableConfigs": [
    "IO_URING"
  ],
  "FocusSymbols": [
    "io_fremovexattr_prep",
    "io_fremovexattr",
    "io_flistxattr_prep",
    "io_flistxattr",
    "file_listxattr",
    "file_removexattr"
  ],
  "Reasoning": "The patch adds support for IORING_OP_FREMOVEXATTR and IORING_OP_FLISTXATTR to io_uring. It modifies core io_uring and xattr logic, making it highly functional and worth fuzzing.",
  "WorthFuzzing": true
}