| Seq | Timestamp | Type | Name | Duration |
|---|---|---|---|---|
| 0/0 | 2026/09/07 17:47 | flow | patch-triage |
0mArgs:null Results: {
"EnableConfigs": null,
"FocusSymbols": [],
"KMSANReasoning": "",
"NeedsKMSAN": false,
"Reasoning": "The patch series only adds user-space man-page documentation files under the man/ directory (man/man2/file_getattr.2, man/man2/file_setattr.2, and man/man2type/file_attr.2type) and does not modify any executable kernel source code or data structures.",
"WorthFuzzing": false
} |
| 1/1 | 2026/09/07 17:47 | action | read-patch-diff |
0mArgs:null Results: {
"PatchDiff": "commit 2047dad010578689e2e6e048c7e3cbae6a6d8cdf\nAuthor: syz-cluster \u003ctriage@syzkaller.com\u003e\nDate: Mon Sep 7 17:47:32 2026 +0000\n\n syz-cluster: applied patch under review\n\ndiff --git a/man/man2/file_getattr.2 b/man/man2/file_getattr.2\nnew file mode 100644\nindex 0000000000000..f1aec2ad8c425\n--- /dev/null\n+++ b/man/man2/file_getattr.2\n@@ -0,0 +1,286 @@\n+.\\\" Copyright, the authors of the Linux man-pages project\n+.\\\"\n+.\\\" SPDX-License-Identifier: Linux-man-pages-copyleft\n+.\\\"\n+.TH file_getattr 2 (date) \"Linux man-pages (unreleased)\"\n+.SH NAME\n+file_getattr \\- get filesystem inode attributes\n+.SH SYNOPSIS\n+.nf\n+.BR \"#include \u003clinux/fcntl.h\u003e\" \" /* \" AT_* \" constants */\"\n+.BR \"#include \u003clinux/fs.h\u003e\" \" /* struct \" file_attr \" and \" FS_XFLAG_* \" constants */\"\n+.BR \"#include \u003csys/syscall.h\u003e\" \" /* \" SYS_* \" constants */\"\n+.B #include \u003cunistd.h\u003e\n+.P\n+.B long syscall(SYS_file_getattr,\n+.BI \" int \" dirfd \", const char *\" pathname ,\n+.BI \" struct file_attr *\" fattr \", size_t \" size ,\n+.BI \" unsigned int \" flags );\n+.fi\n+.P\n+.IR Note :\n+glibc provides no wrapper for\n+.BR file_getattr (),\n+use\n+.BR syscall (2)\n+instead.\n+.SH DESCRIPTION\n+The\n+.BR file_getattr ()\n+system call retrieves filesystem file attributes\n+from the file specified by\n+.IR pathname .\n+.P\n+This system call provides functionality similar to the\n+.B FS_IOC_FSGETXATTR\n+.BR ioctl (2)\n+operation,\n+but with the advantage that the file does not need to be opened.\n+By using a pathname,\n+.BR file_getattr ()\n+can retrieve filesystem file attributes\n+from all file types,\n+including special files such as FIFOs, sockets, block devices, character\n+devices, and symlinks, where opening targeted inode may not be possible.\n+.P\n+As with\n+.BR openat (2),\n+if\n+.I pathname\n+is relative,\n+then it is interpreted relative to the directory\n+referred to by the file descriptor\n+.IR dirfd .\n+The special value\n+.B AT_FDCWD\n+could be used to refer to the current working directory of the calling process.\n+If\n+.I pathname\n+is absolute,\n+then\n+.I dirfd\n+is ignored.\n+.P\n+The\n+.I fattr\n+argument is a pointer to a\n+.I file_attr\n+structure.\n+This structure will be filled with file attributes.\n+This structure is described in\n+.BR file_attr(2type) .\n+.P\n+The\n+.I size\n+argument specifies the size of the buffer pointed to by\n+.IR fattr .\n+The size indicates version of the structure in use, refer to\n+.B file_attr(2type)\n+for more information on versioning.\n+.P\n+Userspace applications should zero-initialize\n+.I struct file_attr\n+before calling\n+.BR file_getattr ()\n+to ensure that fields not filled in by older kernels\n+will have predictable values.\n+.P\n+The\n+.I flags\n+argument is a bit mask, available flags are:\n+.TP\n+.B AT_EMPTY_PATH\n+If\n+.I pathname\n+is an empty string,\n+operate on the file referred to by\n+.IR dirfd .\n+In this case,\n+.I dirfd\n+can refer to any type of file,\n+not just a directory.\n+If\n+.I dirfd\n+is\n+.BR AT_FDCWD ,\n+the call fails with the error\n+.BR EBADF .\n+.TP\n+.B AT_SYMLINK_NOFOLLOW\n+If\n+.I pathname\n+is a symbolic link,\n+do not dereference it;\n+instead get attributes of the symbolic link inode itself.\n+By default, symbolic links are dereferenced.\n+.SH RETURN VALUE\n+On success,\n+zero is returned.\n+On error,\n+\\-1 is returned,\n+and\n+.I errno\n+is set to indicate the error.\n+.SH ERRORS\n+.TP\n+.B E2BIG\n+.I size\n+is too big (larger than\n+.BR PAGE_SIZE ).\n+.TP\n+.B EACCES\n+Search permission is denied for one of the directories\n+in the path prefix of\n+.IR pathname .\n+.TP\n+.B EBADF\n+.I pathname\n+is relative but\n+.I dirfd\n+is neither\n+.B AT_FDCWD\n+nor a valid file descriptor.\n+.TP\n+.B EBADF\n+.I pathname\n+is an empty string,\n+.B AT_EMPTY_PATH\n+was specified,\n+but\n+.I dirfd\n+is an invalid file descriptor.\n+.TP\n+.B EFAULT\n+.I pathname\n+or\n+.I fattr\n+is an invalid pointer.\n+.TP\n+.B EINVAL\n+Invalid flag specified in\n+.IR flags .\n+.TP\n+.B EINVAL\n+.I size\n+is smaller than\n+.BR FILE_ATTR_SIZE_VER0 .\n+.TP\n+.B ELOOP\n+Too many symbolic links encountered while resolving\n+.IR pathname .\n+.TP\n+.B ENAMETOOLONG\n+.I pathname\n+is too long.\n+.TP\n+.B ENOENT\n+A component of\n+.I pathname\n+does not exist,\n+or\n+.I pathname\n+is an empty string and\n+.B AT_EMPTY_PATH\n+was not specified in\n+.IR flags .\n+.TP\n+.B ENOMEM\n+Insufficient kernel memory was available.\n+.TP\n+.B ENOTDIR\n+A component of the path prefix of\n+.I pathname\n+is not a directory or,\n+.I pathname\n+is relative and\n+.I dirfd\n+is a file descriptor referring to a file other than a directory.\n+.TP\n+.B EOPNOTSUPP\n+The filesystem does not support getting attributes on this type of inode.\n+.SH HISTORY\n+.SS Linux 6.17\n+This system call is introduced as a more flexible alternative to the\n+FS_IOC_FSGETXATTR\n+.BR ioctl (2)\n+which could work on any type of files.\n+.SH NOTES\n+This system call is designed to be extensible.\n+The\n+.I size\n+argument allows userspace applications to indicate\n+which version of the\n+.I file_attr\n+structure they are using,\n+enabling the kernel to support both old and new versions\n+of the structure simultaneously.\n+.P\n+If\n+.I size\n+is smaller than the structure size the kernel expects,\n+only the fields that fit within\n+.I size\n+will be filled in.\n+If\n+.I size\n+is larger than the kernel's structure size,\n+the extra bytes are zeroed.\n+.SH EXAMPLES\n+The program below demonstrates the use of\n+.BR file_getattr ()\n+to retrieve and display file attributes.\n+.P\n+.in +4n\n+.EX\n+#include \u003cfcntl.h\u003e\n+#include \u003clinux/fs.h\u003e\n+#include \u003cstdio.h\u003e\n+#include \u003cstdlib.h\u003e\n+#include \u003csys/syscall.h\u003e\n+#include \u003cunistd.h\u003e\n+\n+#ifndef SYS_file_getattr\n+#define SYS_file_getattr 467\n+#endif\n+\n+int\n+main(int argc, char *argv[])\n+{\n+ struct file_attr fa = { 0 };\n+ int dfd;\n+ long ret;\n+\n+ if (argc != 2) {\n+ fprintf(stderr, \"Usage: %s \u003cfilename\u003e\\\\n\", argv[0]);\n+ exit(EXIT_FAILURE);\n+ }\n+\n+ ret = syscall(SYS_file_getattr, AT_FDCWD, argv[1], \u0026fa, sizeof(fa), 0);\n+ if (ret == \\-1) {\n+ perror(\"file_getattr\");\n+ exit(EXIT_FAILURE);\n+ }\n+\n+ printf(\"File attributes:\\\\n\");\n+ printf(\" xflags: 0x%llx\\\\n\", (unsigned long long)fa.fa_xflags);\n+ printf(\" extsize: %u\\\\n\", fa.fa_extsize);\n+ printf(\" nextents: %u\\\\n\", fa.fa_nextents);\n+ printf(\" projid: %u\\\\n\", fa.fa_projid);\n+ printf(\" cowextsize: %u\\\\n\", fa.fa_cowextsize);\n+\n+ /*\n+ * Try setting NODUMP flag with chattr +d ./foo to see the difference\n+ */\n+ if (fa.fa_xflags \u0026 FS_XFLAG_NODUMP)\n+ printf(\" NODUMP flag is set\\\\n\");\n+\n+ exit(EXIT_SUCCESS);\n+}\n+.EE\n+.in\n+.SH SEE ALSO\n+.BR file_setattr (2),\n+.BR file_attr (2type),\n+.BR ioctl (2),\n+.BR ioctl_fs (2),\n+.BR openat (2)\ndiff --git a/man/man2/file_setattr.2 b/man/man2/file_setattr.2\nnew file mode 100644\nindex 0000000000000..596750dc79c81\n--- /dev/null\n+++ b/man/man2/file_setattr.2\n@@ -0,0 +1,340 @@\n+.\\\" Copyright, the authors of the Linux man-pages project\n+.\\\"\n+.\\\" SPDX-License-Identifier: Linux-man-pages-copyleft\n+.\\\"\n+.TH file_setattr 2 (date) \"Linux man-pages (unreleased)\"\n+.SH NAME\n+file_setattr \\- set filesystem inode attributes\n+.SH SYNOPSIS\n+.nf\n+.BR \"#include \u003clinux/fcntl.h\u003e\" \" /* Definition of \" AT_* \" constants */\"\n+.BR \"#include \u003clinux/fs.h\u003e\" \" /* Definition of \" FILE_ATTR_* \\\n+\" and \" FS_XFLAG_* \" constants */\"\n+.BR \"#include \u003csys/syscall.h\u003e\" \" /* Definition of \" SYS_* \" constants */\"\n+.B #include \u003cunistd.h\u003e\n+.P\n+.B long syscall(SYS_file_setattr,\n+.BI \" int \" dirfd \", const char *\" pathname ,\n+.BI \" struct file_attr *\" fattr \", size_t \" size ,\n+.BI \" unsigned int \" flags );\n+.fi\n+.P\n+.IR Note :\n+glibc provides no wrapper for\n+.BR file_setattr (),\n+necessitating the use of\n+.BR syscall (2).\n+.SH DESCRIPTION\n+The\n+.BR file_setattr ()\n+system call sets filesystem inode attributes\n+on the file specified by\n+.IR pathname .\n+.P\n+This system call provides functionality similar to the\n+.B FS_IOC_FSSETXATTR\n+.BR ioctl (2)\n+operation,\n+but with the advantage that the file does not need to be opened.\n+By using a pathname instead of requiring an open file descriptor,\n+.BR file_setattr ()\n+can manipulate filesystem inode attributes\n+on all file types,\n+including special files (FIFOs, sockets, block devices, character devices)\n+where opening the file may have side effects or may not be possible.\n+With\n+.BR ioctl (2),\n+it is not always possible to obtain a file descriptor that refers\n+directly to the filesystem inode for special files.\n+.P\n+As with\n+.BR openat (2),\n+if\n+.I pathname\n+is relative,\n+then it is interpreted relative to the directory\n+referred to by the file descriptor\n+.I dirfd\n+(or the current working directory of the calling process,\n+if\n+.I dirfd\n+is the special value\n+.BR AT_FDCWD ).\n+If\n+.I pathname\n+is absolute,\n+then\n+.I dirfd\n+is ignored.\n+.P\n+The\n+.I fattr\n+argument is a pointer to a\n+.I file_attr\n+structure,\n+which specifies the attributes to set on the file.\n+This structure is described in\n+.BR file_attr (2type).\n+.P\n+The\n+.I size\n+argument specifies the size of the buffer pointed to by\n+.IR fattr .\n+The size indicates version of the structure in use, refer to\n+.B file_attr(2type)\n+for more information on versioning.\n+.P\n+User-space applications should zero-initialize\n+.I struct file_attr\n+to ensure that future fields added to the structure\n+will be treated as no-ops if the structure definition is updated\n+but the application is not.\n+.P\n+The\n+.I flags\n+argument is a bit mask that can include zero or more of the following values:\n+.TP\n+.B AT_EMPTY_PATH\n+If\n+.I pathname\n+is an empty string,\n+operate on the file referred to by\n+.I dirfd\n+(which may have been obtained using the\n+.BR open (2)\n+.B O_PATH\n+flag).\n+In this case,\n+.I dirfd\n+can refer to any type of file,\n+not just a directory.\n+If\n+.I dirfd\n+is\n+.BR AT_FDCWD ,\n+the call fails with the error\n+.BR EBADF .\n+.TP\n+.B AT_SYMLINK_NOFOLLOW\n+If\n+.I pathname\n+is a symbolic link,\n+do not dereference it:\n+instead set attributes on the symbolic link itself.\n+By default (i.e., if this flag is not specified),\n+symbolic links are dereferenced.\n+.SH RETURN VALUE\n+On success,\n+zero is returned.\n+On error,\n+\\-1 is returned,\n+and\n+.I errno\n+is set to indicate the error.\n+.SH ERRORS\n+.TP\n+.B E2BIG\n+.I size\n+is larger than\n+.BR PAGE_SIZE .\n+.TP\n+.B E2BIG\n+.I size\n+indicates the version which kernel doesn't support (the size is larger than the\n+kernel expects) and new fields are non-zero.\n+.TP\n+.B EACCES\n+Search permission is denied for one of the directories\n+in the path prefix of\n+.IR pathname .\n+(See also\n+.BR path_resolution (7).)\n+.TP\n+.B EBADF\n+.I pathname\n+is relative but\n+.I dirfd\n+is neither\n+.B AT_FDCWD\n+nor a valid file descriptor.\n+.TP\n+.B EBADF\n+.I pathname\n+is an empty string,\n+.B AT_EMPTY_PATH\n+was specified in\n+.IR flags ,\n+and\n+.I dirfd\n+is an invalid file descriptor.\n+.TP\n+.B EFAULT\n+.I pathname\n+or\n+.I fattr\n+is an invalid pointer.\n+.TP\n+.B EINVAL\n+Invalid flag specified in\n+.IR flags .\n+.TP\n+.B EINVAL\n+.I size\n+is smaller than\n+.BR FILE_ATTR_SIZE_VER0 .\n+.TP\n+.B EINVAL\n+Invalid combination of parameters provided in\n+.I fattr\n+for this type of file or filesystem.\n+.TP\n+.B ELOOP\n+Too many symbolic links encountered while resolving\n+.IR pathname .\n+.TP\n+.B ENAMETOOLONG\n+.I pathname\n+is too long.\n+.TP\n+.B ENOENT\n+A component of\n+.I pathname\n+does not exist,\n+or\n+.I pathname\n+is an empty string and\n+.B AT_EMPTY_PATH\n+was not specified in\n+.IR flags .\n+.TP\n+.B ENOMEM\n+Insufficient kernel memory was available.\n+.TP\n+.B ENOTDIR\n+A component of the path prefix of\n+.I pathname\n+is not a directory or,\n+.I pathname\n+is relative and\n+.I dirfd\n+is a file descriptor referring to a file other than a directory.\n+.TP\n+.B EOPNOTSUPP\n+The filesystem does not support setting attributes on this type of inode.\n+.TP\n+.B EPERM\n+The caller does not have the necessary permissions\n+to change the file attributes.\n+.TP\n+.B EROFS\n+The file is on a read-only filesystem.\n+.SH HISTORY\n+.SS Linux 6.17\n+This system call is introduced as a more flexible alternative to the\n+FS_IOC_FSSETXATTR\n+.BR ioctl (2)\n+which could work on any type of files.\n+.SH NOTES\n+This system call is designed to be extensible.\n+The\n+.I size\n+argument allows user-space applications to indicate\n+which version of the\n+.I file_attr\n+structure they are using,\n+enabling the kernel to support both old and new versions\n+of the structure simultaneously.\n+.P\n+If\n+.I size\n+is smaller than the structure size the kernel expects,\n+the kernel treats the missing fields as having zero values\n+(which is a no-op).\n+If\n+.I size\n+is larger than expected,\n+the kernel checks that all unknown (to the kernel) fields are zero;\n+if not,\n+the call fails with\n+.BR E2BIG .\n+.SH EXAMPLES\n+The program below demonstrates the use of\n+.BR file_setattr ()\n+to set the\n+.B FS_XFLAG_NODUMP\n+flag on a file.\n+.P\n+.in +4n\n+.EX\n+#include \u003cfcntl.h\u003e\n+#include \u003clinux/fcntl.h\u003e\n+#include \u003clinux/fs.h\u003e\n+#include \u003cstdio.h\u003e\n+#include \u003cstdlib.h\u003e\n+#include \u003cstring.h\u003e\n+#include \u003csys/syscall.h\u003e\n+#include \u003cunistd.h\u003e\n+\n+#ifndef SYS_file_getattr\n+#define SYS_file_getattr 467\n+#endif\n+\n+#ifndef SYS_file_setattr\n+#define SYS_file_setattr 468\n+#endif\n+\n+int\n+main(int argc, char *argv[])\n+{\n+ struct file_attr fa = { 0 };\n+ int dfd;\n+ long ret;\n+\n+ if (argc != 2) {\n+ fprintf(stderr, \"Usage: %s \u003cfilename\u003e\\\\n\", argv[0]);\n+ exit(EXIT_FAILURE);\n+ }\n+\n+ dfd = open(argv[1], O_RDONLY);\n+ if (dfd == \\-1) {\n+ perror(\"open\");\n+ exit(EXIT_FAILURE);\n+ }\n+\n+ ret = syscall(SYS_file_getattr, dfd, \"\", \u0026fa, sizeof(fa), AT_EMPTY_PATH);\n+ if (ret == \\-1) {\n+ perror(\"file_getattr\");\n+ exit(EXIT_FAILURE);\n+ }\n+\n+ printf(\"Current flags: 0x%llx\\\\n\", (unsigned long long)fa.fa_xflags);\n+\n+ fa.fa_xflags |= FS_XFLAG_NODUMP;\n+\n+ ret = syscall(SYS_file_setattr, dfd, \"\", \u0026fa, sizeof(fa), AT_EMPTY_PATH);\n+ if (ret == \\-1) {\n+ perror(\"file_setattr\");\n+ exit(EXIT_FAILURE);\n+ }\n+\n+ ret = syscall(SYS_file_getattr, dfd, \"\", \u0026fa, sizeof(fa), AT_EMPTY_PATH);\n+ if (ret == \\-1) {\n+ perror(\"file_getattr\");\n+ exit(EXIT_FAILURE);\n+ }\n+\n+ if (fa.fa_xflags \u0026 FS_XFLAG_NODUMP)\n+ printf(\"flags 0x%llx (NODUMP flag is set)\\\\n\",\n+ (unsigned long long)fa.fa_xflags);\n+\n+ exit(EXIT_SUCCESS);\n+}\n+.EE\n+.in\n+.SH SEE ALSO\n+.BR file_getattr (2),\n+.BR ioctl (2),\n+.BR ioctl_fs (2),\n+.BR openat (2),\n+.BR file_attr (2type),\n+.BR path_resolution (7)\ndiff --git a/man/man2type/file_attr.2type b/man/man2type/file_attr.2type\nnew file mode 100644\nindex 0000000000000..fd426c19f5f0b\n--- /dev/null\n+++ b/man/man2type/file_attr.2type\n@@ -0,0 +1,187 @@\n+.\\\" Copyright, the authors of the Linux man-pages project\n+.\\\"\n+.\\\" SPDX-License-Identifier: Linux-man-pages-copyleft\n+.\\\"\n+.TH file_attr 2type (date) \"Linux man-pages (unreleased)\"\n+.SH NAME\n+file_attr \\- describe filesystem file attributes to get or set\n+.SH SYNOPSIS\n+.EX\n+.B #include \u003clinux/fs.h\u003e\n+.P\n+.B struct file_attr {\n+.BR \" u64 fa_xflags;\" \" /* Extended flags */\"\n+.BR \" u32 fa_extsize;\" \" /* Extent size hint */\"\n+.BR \" u32 fa_nextents;\" \" /* Number of extents (read-only) */\"\n+.BR \" u32 fa_projid;\" \" /* Project identifier */\"\n+.BR \" u32 fa_cowextsize;\" \" /* CoW extent size hint */\"\n+.B };\n+.EE\n+.SH DESCRIPTION\n+Describes filesystem file attributes\n+for use with the\n+.BR file_getattr (2)\n+and\n+.BR file_setattr (2)\n+system calls.\n+.P\n+The fields are as follows:\n+.TP\n+.I fa_xflags\n+This field contains file attribute flags.\n+It is a bit mask consisting of zero or more of the\n+.B FS_XFLAG_*\n+flags.\n+Refer to the section\n+.B FLAGS\n+below for a list of all flags.\n+.TP\n+.I fa_extsize\n+Extent size allocator hint in bytes.\n+This value suggests a preferred extent size\n+for new allocations to this file.\n+.TP\n+.I fa_nextents\n+Number of data extents in the file (read-only).\n+This field is filled in by\n+.BR file_getattr (2)\n+and is ignored by\n+.BR file_setattr (2).\n+.TP\n+.I fa_projid\n+Project identifier.\n+Used by quota systems to group related files.\n+.TP\n+.I fa_cowextsize\n+Copy-on-Write (CoW) extent size hint in bytes.\n+This value suggests a preferred extent size\n+for CoW operations.\n+.SH FLAGS\n+Flags can be:\n+.RS\n+.TP\n+.B FS_XFLAG_REALTIME\n+Data is stored in a realtime volume.\n+.TP\n+.B FS_XFLAG_IMMUTABLE\n+File cannot be modified.\n+.TP\n+.B FS_XFLAG_APPEND\n+All writes must append to the end of the file.\n+.TP\n+.B FS_XFLAG_SYNC\n+All writes are synchronous.\n+.TP\n+.B FS_XFLAG_NOATIME\n+Do not update file access time on reads.\n+.TP\n+.B FS_XFLAG_NODUMP\n+Do not include file in backups.\n+.TP\n+.B FS_XFLAG_DAX\n+Use Direct Access (DAX) for I/O operations.\n+.TP\n+.B FS_XFLAG_NODEFRAG\n+Exclude this file from defragmentation operations.\n+.TP\n+.B FS_XFLAG_FILESTREAM\n+Use filestream allocator for this file.\n+.TP\n+.B FS_XFLAG_EXTSIZE\n+Use the extent size hint from the\n+.I fa_extsize\n+field.\n+.TP\n+.B FS_XFLAG_COWEXTSIZE\n+Use the CoW extent size hint from the\n+.I fa_cowextsize\n+field.\n+.RE\n+.P\n+Directory only flags:\n+.RS\n+.TP\n+.B FS_XFLAG_RTINHERIT\n+New files created in this directory inherit the realtime flag.\n+.TP\n+.B FS_XFLAG_NOSYMLINKS\n+Disallow creation of symbolic links in this directory.\n+.TP\n+.B FS_XFLAG_EXTSZINHERIT\n+New files created in this directory inherit the extent size hint.\n+.TP\n+.B FS_XFLAG_PROJINHERIT\n+New files created in this directory inherit the project identifier.\n+.RE\n+.P\n+The following flags are read-only:\n+.RS\n+.TP\n+.B FS_XFLAG_PREALLOC\n+File has preallocated extents.\n+.TP\n+.B FS_XFLAG_HASATTR\n+File has extended attributes.\n+.TP\n+.B FS_XFLAG_VERITY\n+File has fs-verity enabled.\n+.TP\n+.B FS_XFLAG_CASEFOLD\n+The filesystem performs case-insensitive lookups (file and directory name\n+comparisons ignore case).\n+.TP\n+.B FS_XFLAG_CASENONPRESERVING\n+The filesystem does not preserve the case of file and directory names.\n+.RE\n+.P\n+Not all filesystems support all flags.\n+Setting unsupported flags may result in an\n+.B EINVAL\n+or\n+.B EOPNOTSUPP\n+error.\n+.SH VERSIONS\n+.SS Structure size\n+The structure size is defined by\n+.B FILE_ATTR_SIZE_VER*\n+which is also a version of the structure being used.\n+The\n+.I size\n+parameter passed to\n+.BR file_getattr (2)\n+and\n+.BR file_setattr (2)\n+indicates the version of\n+.I struct file_attr\\fP.\n+.SS FILE_ATTR_SIZE_VER0\n+Size is 24 bytes.\n+.SH HISTORY\n+.SS Linux v6.17\n+This structure is introduced.\n+The\n+.I struct file_attr\n+provides similar functionality to\n+.I struct fsxattr\n+used by the\n+.B FS_IOC_FSGETXATTR\n+and\n+.B FS_IOC_FSSETXATTR\n+.BR ioctl (2)\n+operations,\n+but is designed to be extensible through the\n+.I size\n+parameter of the system calls.\n+.P\n+Extra fields may be appended to the structure in future kernel versions.\n+The kernel will expect new fields to be zeros\n+for older versions of the structure.\n+Therefore, a user\n+.I must\n+zero-fill the structure on initialization to keep compatibility with older\n+kernels.\n+.SS Linux v7.2\n+The FS_XFLAG_CASEFOLD and FS_XFLAG_CASENONPRESERVING are introduced to enable\n+upper layers, such as NFSD, to retrieve case sensitivity information.\n+.SH SEE ALSO\n+.BR file_getattr (2),\n+.BR file_setattr (2)\n"
} |
| 2/1 | 2026/09/07 17:47 | agent | patch-evaluator |
0mModel:core Args: null Results: {
"EnableConfigs": null,
"FocusSymbols": [],
"Reasoning": "The patch series only adds user-space man-page documentation files under the man/ directory (man/man2/file_getattr.2, man/man2/file_setattr.2, and man/man2type/file_attr.2type) and does not modify any executable kernel source code or data structures.",
"WorthFuzzing": false
}Instruction: You are an expert Linux kernel maintainer and security engineer.
Your job is to review a provided patch series and evaluate whether it warrants fuzzing with syzkaller.
IMPORTANT: The changes have ALREADY been applied and committed as the HEAD commit in
your workspace. Do NOT rely on internal assumptions. You must actively use your code access
tools to inspect the actual source code, callers, and surrounding context.
================================================================================
1. CORE TRIAGE PHILOSOPHY
================================================================================
The goal of patch fuzzing is to discover crashes, regressions, exposed latent bugs,
and newly triggered assertions introduced by the patch series.
- REACHABILITY IS THE PRIMARY GATE:
Fuzzing can only discover bugs in code that can actually execute in standard virtualized
environments (GCE or QEMU, utilizing software-emulated devices like USB gadgets, netdev, tun/tap).
If the modified code is structurally unreachable (see Section 2), it MUST NOT be fuzzed,
regardless of whether it adds assertions or complex logic.
- DO NOT BLINDLY TRUST "NO FUNCTIONAL CHANGE" (NFCI) OR "REFACTORING" CLAIMS:
Patch authors routinely label changes as "cleanups", "refactorings", or state
"No functional change intended". Do NOT take these claims at face value.
Code refactorings that rearrange logic, introduce helper functions, or alter state management
in core subsystems frequently introduce subtle semantic shifts or uncover latent kernel bugs.
If reachable executable code is modified or refactored, it MUST be fuzzed.
- NEW OR MODIFIED ASSERTIONS IN REACHABLE CODE MUST BE FUZZED:
When a patch introduces or modifies runtime checks or assertions (e.g., WARN_ON*, VM_WARN_ON*,
BUG_ON*, lockdep_assert*) in reachable code paths, it enforces new or stricter invariants.
Even if the author believes the invariant always holds, fuzzing is essential to verify whether
an unusual sequence of operations can violate it.
================================================================================
2. WHEN TO RETURN WorthFuzzing=false (NEGATIVE CRITERIA)
================================================================================
Return WorthFuzzing=false ONLY IF all modified code falls strictly into one or more of these categories:
- Non-kernel and non-executable changes:
* Modifications to Documentation/, comments, or spelling fixes.
* User-space directories, self-tests, samples, or scripts (e.g., tools/, samples/, scripts/, usr/)
that do not affect the compiled kernel image (vmlinux) or kernel modules.
* Purely decorative logging (e.g., message strings in pr_err, printk, dev_info) or tracepoints
that do not alter control flow or data structures.
* Build system or Kconfig changes that do not alter compiled C logic.
- Structurally unreachable hardware:
* Vendor-specific PCIe switches, SmartNICs, or GPU drivers (e.g., mlxsw, pds_core, qed,
ionic, amdgpu) requiring physical ASIC/PCIe cards not emulated in standard QEMU.
- Unreachable execution paths:
* Driver teardown callbacks (.remove, .shutdown, pci_unregister_driver) executed only during
physical PCI hot-unplug or manual sysfs driver unbinding.
* Code paths exclusive to architectures other than the target architecture.
================================================================================
3. WHEN TO RETURN WorthFuzzing=true (POSITIVE CRITERIA)
================================================================================
Return WorthFuzzing=true whenever the patch touches reachable executable code, including:
- Core Subsystems:
* Any logic modifications in memory management (mm/), synchronization/locking (kernel/locking/),
BPF, scheduler, core networking, VFS, or syscall handling.
- Refactorings and Code Cleanups:
* Any restructuring of reachable data structures, helper abstractions, or algorithm flows.
- Runtime Assertions and Defensive Checks:
* Any introduction or alteration of assertions (WARN_ON*, VM_WARN_ON*, BUG_ON*, etc.) in reachable paths.
- Reachable Drivers and Protocols:
* Drivers accessible via virtual buses (virtio, USB gadget, loopback, netlink, binder, sockets, etc.).
================================================================================
4. EXTRACTING FocusSymbols (PREVENTING DILUTION)
================================================================================
When WorthFuzzing=true, you must extract specific kernel functions into FocusSymbols to guide the fuzzer:
- AVOID UBIQUITOUS LIFECYCLE HOT-PATHS:
Do NOT list generic, ubiquitous functions called by almost every program in the corpus
(including, but not limited to: general memory allocators and deallocators, page fault
and trap handlers, or core synchronization primitives; this is not an exhaustive list).
Listing ubiquitous functions causes the fuzzer to classify thousands of unrelated tests as "focused",
which severely dilutes fuzzing effort away from the actual changes.
- TARGET SPECIFIC FEATURE LOGIC AND ENTRYPOINTS:
List functions that specifically implement the logic being added or altered, or direct API entrypoints
for the subsystem feature under review.
- HANDLING STATIC INLINE FUNCTIONS IN HEADERS (.h):
Compiler-inlined static functions (such as static inlines in mm/*.h or include/linux/*.h) lack
distinct symbol addresses in vmlinux and cannot be targeted directly by symbol coverage filters.
If the changes are primarily in static inline helpers, identify non-static, feature-specific caller
functions in .c files that exercise them (avoiding ubiquitous lifecycle wrappers).
================================================================================
5. IDENTIFYING EnableConfigs
================================================================================
Identify any specific CONFIG_ options required to properly compile and reach the modified code:
- Inspect Kconfig files and #ifdef guards; do not make assumptions.
- Check "depends on" lines in Kconfig to include any non-standard parent subsystem configs needed.
- Strip any '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: Target architecture: amd64
For your convenience, here is the diff of the changes:
commit 2047dad010578689e2e6e048c7e3cbae6a6d8cdf
Author: syz-cluster <triage@syzkaller.com>
Date: Mon Sep 7 17:47:32 2026 +0000
syz-cluster: applied patch under review
diff --git a/man/man2/file_getattr.2 b/man/man2/file_getattr.2
new file mode 100644
index 0000000000000..f1aec2ad8c425
--- /dev/null
+++ b/man/man2/file_getattr.2
@@ -0,0 +1,286 @@
+.\" Copyright, the authors of the Linux man-pages project
+.\"
+.\" SPDX-License-Identifier: Linux-man-pages-copyleft
+.\"
+.TH file_getattr 2 (date) "Linux man-pages (unreleased)"
+.SH NAME
+file_getattr \- get filesystem inode attributes
+.SH SYNOPSIS
+.nf
+.BR "#include <linux/fcntl.h>" " /* " AT_* " constants */"
+.BR "#include <linux/fs.h>" " /* struct " file_attr " and " FS_XFLAG_* " constants */"
+.BR "#include <sys/syscall.h>" " /* " SYS_* " constants */"
+.B #include <unistd.h>
+.P
+.B long syscall(SYS_file_getattr,
+.BI " int " dirfd ", const char *" pathname ,
+.BI " struct file_attr *" fattr ", size_t " size ,
+.BI " unsigned int " flags );
+.fi
+.P
+.IR Note :
+glibc provides no wrapper for
+.BR file_getattr (),
+use
+.BR syscall (2)
+instead.
+.SH DESCRIPTION
+The
+.BR file_getattr ()
+system call retrieves filesystem file attributes
+from the file specified by
+.IR pathname .
+.P
+This system call provides functionality similar to the
+.B FS_IOC_FSGETXATTR
+.BR ioctl (2)
+operation,
+but with the advantage that the file does not need to be opened.
+By using a pathname,
+.BR file_getattr ()
+can retrieve filesystem file attributes
+from all file types,
+including special files such as FIFOs, sockets, block devices, character
+devices, and symlinks, where opening targeted inode may not be possible.
+.P
+As with
+.BR openat (2),
+if
+.I pathname
+is relative,
+then it is interpreted relative to the directory
+referred to by the file descriptor
+.IR dirfd .
+The special value
+.B AT_FDCWD
+could be used to refer to the current working directory of the calling process.
+If
+.I pathname
+is absolute,
+then
+.I dirfd
+is ignored.
+.P
+The
+.I fattr
+argument is a pointer to a
+.I file_attr
+structure.
+This structure will be filled with file attributes.
+This structure is described in
+.BR file_attr(2type) .
+.P
+The
+.I size
+argument specifies the size of the buffer pointed to by
+.IR fattr .
+The size indicates version of the structure in use, refer to
+.B file_attr(2type)
+for more information on versioning.
+.P
+Userspace applications should zero-initialize
+.I struct file_attr
+before calling
+.BR file_getattr ()
+to ensure that fields not filled in by older kernels
+will have predictable values.
+.P
+The
+.I flags
+argument is a bit mask, available flags are:
+.TP
+.B AT_EMPTY_PATH
+If
+.I pathname
+is an empty string,
+operate on the file referred to by
+.IR dirfd .
+In this case,
+.I dirfd
+can refer to any type of file,
+not just a directory.
+If
+.I dirfd
+is
+.BR AT_FDCWD ,
+the call fails with the error
+.BR EBADF .
+.TP
+.B AT_SYMLINK_NOFOLLOW
+If
+.I pathname
+is a symbolic link,
+do not dereference it;
+instead get attributes of the symbolic link inode itself.
+By default, symbolic links are dereferenced.
+.SH RETURN VALUE
+On success,
+zero is returned.
+On error,
+\-1 is returned,
+and
+.I errno
+is set to indicate the error.
+.SH ERRORS
+.TP
+.B E2BIG
+.I size
+is too big (larger than
+.BR PAGE_SIZE ).
+.TP
+.B EACCES
+Search permission is denied for one of the directories
+in the path prefix of
+.IR pathname .
+.TP
+.B EBADF
+.I pathname
+is relative but
+.I dirfd
+is neither
+.B AT_FDCWD
+nor a valid file descriptor.
+.TP
+.B EBADF
+.I pathname
+is an empty string,
+.B AT_EMPTY_PATH
+was specified,
+but
+.I dirfd
+is an invalid file descriptor.
+.TP
+.B EFAULT
+.I pathname
+or
+.I fattr
+is an invalid pointer.
+.TP
+.B EINVAL
+Invalid flag specified in
+.IR flags .
+.TP
+.B EINVAL
+.I size
+is smaller than
+.BR FILE_ATTR_SIZE_VER0 .
+.TP
+.B ELOOP
+Too many symbolic links encountered while resolving
+.IR pathname .
+.TP
+.B ENAMETOOLONG
+.I pathname
+is too long.
+.TP
+.B ENOENT
+A component of
+.I pathname
+does not exist,
+or
+.I pathname
+is an empty string and
+.B AT_EMPTY_PATH
+was not specified in
+.IR flags .
+.TP
+.B ENOMEM
+Insufficient kernel memory was available.
+.TP
+.B ENOTDIR
+A component of the path prefix of
+.I pathname
+is not a directory or,
+.I pathname
+is relative and
+.I dirfd
+is a file descriptor referring to a file other than a directory.
+.TP
+.B EOPNOTSUPP
+The filesystem does not support getting attributes on this type of inode.
+.SH HISTORY
+.SS Linux 6.17
+This system call is introduced as a more flexible alternative to the
+FS_IOC_FSGETXATTR
+.BR ioctl (2)
+which could work on any type of files.
+.SH NOTES
+This system call is designed to be extensible.
+The
+.I size
+argument allows userspace applications to indicate
+which version of the
+.I file_attr
+structure they are using,
+enabling the kernel to support both old and new versions
+of the structure simultaneously.
+.P
+If
+.I size
+is smaller than the structure size the kernel expects,
+only the fields that fit within
+.I size
+will be filled in.
+If
+.I size
+is larger than the kernel's structure size,
+the extra bytes are zeroed.
+.SH EXAMPLES
+The program below demonstrates the use of
+.BR file_getattr ()
+to retrieve and display file attributes.
+.P
+.in +4n
+.EX
+#include <fcntl.h>
+#include <linux/fs.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/syscall.h>
+#include <unistd.h>
+
+#ifndef SYS_file_getattr
+#define SYS_file_getattr 467
+#endif
+
+int
+main(int argc, char *argv[])
+{
+ struct file_attr fa = { 0 };
+ int dfd;
+ long ret;
+
+ if (argc != 2) {
+ fprintf(stderr, "Usage: %s <filename>\\n", argv[0]);
+ exit(EXIT_FAILURE);
+ }
+
+ ret = syscall(SYS_file_getattr, AT_FDCWD, argv[1], &fa, sizeof(fa), 0);
+ if (ret == \-1) {
+ perror("file_getattr");
+ exit(EXIT_FAILURE);
+ }
+
+ printf("File attributes:\\n");
+ printf(" xflags: 0x%llx\\n", (unsigned long long)fa.fa_xflags);
+ printf(" extsize: %u\\n", fa.fa_extsize);
+ printf(" nextents: %u\\n", fa.fa_nextents);
+ printf(" projid: %u\\n", fa.fa_projid);
+ printf(" cowextsize: %u\\n", fa.fa_cowextsize);
+
+ /*
+ * Try setting NODUMP flag with chattr +d ./foo to see the difference
+ */
+ if (fa.fa_xflags & FS_XFLAG_NODUMP)
+ printf(" NODUMP flag is set\\n");
+
+ exit(EXIT_SUCCESS);
+}
+.EE
+.in
+.SH SEE ALSO
+.BR file_setattr (2),
+.BR file_attr (2type),
+.BR ioctl (2),
+.BR ioctl_fs (2),
+.BR openat (2)
diff --git a/man/man2/file_setattr.2 b/man/man2/file_setattr.2
new file mode 100644
index 0000000000000..596750dc79c81
--- /dev/null
+++ b/man/man2/file_setattr.2
@@ -0,0 +1,340 @@
+.\" Copyright, the authors of the Linux man-pages project
+.\"
+.\" SPDX-License-Identifier: Linux-man-pages-copyleft
+.\"
+.TH file_setattr 2 (date) "Linux man-pages (unreleased)"
+.SH NAME
+file_setattr \- set filesystem inode attributes
+.SH SYNOPSIS
+.nf
+.BR "#include <linux/fcntl.h>" " /* Definition of " AT_* " constants */"
+.BR "#include <linux/fs.h>" " /* Definition of " FILE_ATTR_* \
+" and " FS_XFLAG_* " constants */"
+.BR "#include <sys/syscall.h>" " /* Definition of " SYS_* " constants */"
+.B #include <unistd.h>
+.P
+.B long syscall(SYS_file_setattr,
+.BI " int " dirfd ", const char *" pathname ,
+.BI " struct file_attr *" fattr ", size_t " size ,
+.BI " unsigned int " flags );
+.fi
+.P
+.IR Note :
+glibc provides no wrapper for
+.BR file_setattr (),
+necessitating the use of
+.BR syscall (2).
+.SH DESCRIPTION
+The
+.BR file_setattr ()
+system call sets filesystem inode attributes
+on the file specified by
+.IR pathname .
+.P
+This system call provides functionality similar to the
+.B FS_IOC_FSSETXATTR
+.BR ioctl (2)
+operation,
+but with the advantage that the file does not need to be opened.
+By using a pathname instead of requiring an open file descriptor,
+.BR file_setattr ()
+can manipulate filesystem inode attributes
+on all file types,
+including special files (FIFOs, sockets, block devices, character devices)
+where opening the file may have side effects or may not be possible.
+With
+.BR ioctl (2),
+it is not always possible to obtain a file descriptor that refers
+directly to the filesystem inode for special files.
+.P
+As with
+.BR openat (2),
+if
+.I pathname
+is relative,
+then it is interpreted relative to the directory
+referred to by the file descriptor
+.I dirfd
+(or the current working directory of the calling process,
+if
+.I dirfd
+is the special value
+.BR AT_FDCWD ).
+If
+.I pathname
+is absolute,
+then
+.I dirfd
+is ignored.
+.P
+The
+.I fattr
+argument is a pointer to a
+.I file_attr
+structure,
+which specifies the attributes to set on the file.
+This structure is described in
+.BR file_attr (2type).
+.P
+The
+.I size
+argument specifies the size of the buffer pointed to by
+.IR fattr .
+The size indicates version of the structure in use, refer to
+.B file_attr(2type)
+for more information on versioning.
+.P
+User-space applications should zero-initialize
+.I struct file_attr
+to ensure that future fields added to the structure
+will be treated as no-ops if the structure definition is updated
+but the application is not.
+.P
+The
+.I flags
+argument is a bit mask that can include zero or more of the following values:
+.TP
+.B AT_EMPTY_PATH
+If
+.I pathname
+is an empty string,
+operate on the file referred to by
+.I dirfd
+(which may have been obtained using the
+.BR open (2)
+.B O_PATH
+flag).
+In this case,
+.I dirfd
+can refer to any type of file,
+not just a directory.
+If
+.I dirfd
+is
+.BR AT_FDCWD ,
+the call fails with the error
+.BR EBADF .
+.TP
+.B AT_SYMLINK_NOFOLLOW
+If
+.I pathname
+is a symbolic link,
+do not dereference it:
+instead set attributes on the symbolic link itself.
+By default (i.e., if this flag is not specified),
+symbolic links are dereferenced.
+.SH RETURN VALUE
+On success,
+zero is returned.
+On error,
+\-1 is returned,
+and
+.I errno
+is set to indicate the error.
+.SH ERRORS
+.TP
+.B E2BIG
+.I size
+is larger than
+.BR PAGE_SIZE .
+.TP
+.B E2BIG
+.I size
+indicates the version which kernel doesn't support (the size is larger than the
+kernel expects) and new fields are non-zero.
+.TP
+.B EACCES
+Search permission is denied for one of the directories
+in the path prefix of
+.IR pathname .
+(See also
+.BR path_resolution (7).)
+.TP
+.B EBADF
+.I pathname
+is relative but
+.I dirfd
+is neither
+.B AT_FDCWD
+nor a valid file descriptor.
+.TP
+.B EBADF
+.I pathname
+is an empty string,
+.B AT_EMPTY_PATH
+was specified in
+.IR flags ,
+and
+.I dirfd
+is an invalid file descriptor.
+.TP
+.B EFAULT
+.I pathname
+or
+.I fattr
+is an invalid pointer.
+.TP
+.B EINVAL
+Invalid flag specified in
+.IR flags .
+.TP
+.B EINVAL
+.I size
+is smaller than
+.BR FILE_ATTR_SIZE_VER0 .
+.TP
+.B EINVAL
+Invalid combination of parameters provided in
+.I fattr
+for this type of file or filesystem.
+.TP
+.B ELOOP
+Too many symbolic links encountered while resolving
+.IR pathname .
+.TP
+.B ENAMETOOLONG
+.I pathname
+is too long.
+.TP
+.B ENOENT
+A component of
+.I pathname
+does not exist,
+or
+.I pathname
+is an empty string and
+.B AT_EMPTY_PATH
+was not specified in
+.IR flags .
+.TP
+.B ENOMEM
+Insufficient kernel memory was available.
+.TP
+.B ENOTDIR
+A component of the path prefix of
+.I pathname
+is not a directory or,
+.I pathname
+is relative and
+.I dirfd
+is a file descriptor referring to a file other than a directory.
+.TP
+.B EOPNOTSUPP
+The filesystem does not support setting attributes on this type of inode.
+.TP
+.B EPERM
+The caller does not have the necessary permissions
+to change the file attributes.
+.TP
+.B EROFS
+The file is on a read-only filesystem.
+.SH HISTORY
+.SS Linux 6.17
+This system call is introduced as a more flexible alternative to the
+FS_IOC_FSSETXATTR
+.BR ioctl (2)
+which could work on any type of files.
+.SH NOTES
+This system call is designed to be extensible.
+The
+.I size
+argument allows user-space applications to indicate
+which version of the
+.I file_attr
+structure they are using,
+enabling the kernel to support both old and new versions
+of the structure simultaneously.
+.P
+If
+.I size
+is smaller than the structure size the kernel expects,
+the kernel treats the missing fields as having zero values
+(which is a no-op).
+If
+.I size
+is larger than expected,
+the kernel checks that all unknown (to the kernel) fields are zero;
+if not,
+the call fails with
+.BR E2BIG .
+.SH EXAMPLES
+The program below demonstrates the use of
+.BR file_setattr ()
+to set the
+.B FS_XFLAG_NODUMP
+flag on a file.
+.P
+.in +4n
+.EX
+#include <fcntl.h>
+#include <linux/fcntl.h>
+#include <linux/fs.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/syscall.h>
+#include <unistd.h>
+
+#ifndef SYS_file_getattr
+#define SYS_file_getattr 467
+#endif
+
+#ifndef SYS_file_setattr
+#define SYS_file_setattr 468
+#endif
+
+int
+main(int argc, char *argv[])
+{
+ struct file_attr fa = { 0 };
+ int dfd;
+ long ret;
+
+ if (argc != 2) {
+ fprintf(stderr, "Usage: %s <filename>\\n", argv[0]);
+ exit(EXIT_FAILURE);
+ }
+
+ dfd = open(argv[1], O_RDONLY);
+ if (dfd == \-1) {
+ perror("open");
+ exit(EXIT_FAILURE);
+ }
+
+ ret = syscall(SYS_file_getattr, dfd, "", &fa, sizeof(fa), AT_EMPTY_PATH);
+ if (ret == \-1) {
+ perror("file_getattr");
+ exit(EXIT_FAILURE);
+ }
+
+ printf("Current flags: 0x%llx\\n", (unsigned long long)fa.fa_xflags);
+
+ fa.fa_xflags |= FS_XFLAG_NODUMP;
+
+ ret = syscall(SYS_file_setattr, dfd, "", &fa, sizeof(fa), AT_EMPTY_PATH);
+ if (ret == \-1) {
+ perror("file_setattr");
+ exit(EXIT_FAILURE);
+ }
+
+ ret = syscall(SYS_file_getattr, dfd, "", &fa, sizeof(fa), AT_EMPTY_PATH);
+ if (ret == \-1) {
+ perror("file_getattr");
+ exit(EXIT_FAILURE);
+ }
+
+ if (fa.fa_xflags & FS_XFLAG_NODUMP)
+ printf("flags 0x%llx (NODUMP flag is set)\\n",
+ (unsigned long long)fa.fa_xflags);
+
+ exit(EXIT_SUCCESS);
+}
+.EE
+.in
+.SH SEE ALSO
+.BR file_getattr (2),
+.BR ioctl (2),
+.BR ioctl_fs (2),
+.BR openat (2),
+.BR file_attr (2type),
+.BR path_resolution (7)
diff --git a/man/man2type/file_attr.2type b/man/man2type/file_attr.2type
new file mode 100644
index 0000000000000..fd426c19f5f0b
--- /dev/null
+++ b/man/man2type/file_attr.2type
@@ -0,0 +1,187 @@
+.\" Copyright, the authors of the Linux man-pages project
+.\"
+.\" SPDX-License-Identifier: Linux-man-pages-copyleft
+.\"
+.TH file_attr 2type (date) "Linux man-pages (unreleased)"
+.SH NAME
+file_attr \- describe filesystem file attributes to get or set
+.SH SYNOPSIS
+.EX
+.B #include <linux/fs.h>
+.P
+.B struct file_attr {
+.BR " u64 fa_xflags;" " /* Extended flags */"
+.BR " u32 fa_extsize;" " /* Extent size hint */"
+.BR " u32 fa_nextents;" " /* Number of extents (read-only) */"
+.BR " u32 fa_projid;" " /* Project identifier */"
+.BR " u32 fa_cowextsize;" " /* CoW extent size hint */"
+.B };
+.EE
+.SH DESCRIPTION
+Describes filesystem file attributes
+for use with the
+.BR file_getattr (2)
+and
+.BR file_setattr (2)
+system calls.
+.P
+The fields are as follows:
+.TP
+.I fa_xflags
+This field contains file attribute flags.
+It is a bit mask consisting of zero or more of the
+.B FS_XFLAG_*
+flags.
+Refer to the section
+.B FLAGS
+below for a list of all flags.
+.TP
+.I fa_extsize
+Extent size allocator hint in bytes.
+This value suggests a preferred extent size
+for new allocations to this file.
+.TP
+.I fa_nextents
+Number of data extents in the file (read-only).
+This field is filled in by
+.BR file_getattr (2)
+and is ignored by
+.BR file_setattr (2).
+.TP
+.I fa_projid
+Project identifier.
+Used by quota systems to group related files.
+.TP
+.I fa_cowextsize
+Copy-on-Write (CoW) extent size hint in bytes.
+This value suggests a preferred extent size
+for CoW operations.
+.SH FLAGS
+Flags can be:
+.RS
+.TP
+.B FS_XFLAG_REALTIME
+Data is stored in a realtime volume.
+.TP
+.B FS_XFLAG_IMMUTABLE
+File cannot be modified.
+.TP
+.B FS_XFLAG_APPEND
+All writes must append to the end of the file.
+.TP
+.B FS_XFLAG_SYNC
+All writes are synchronous.
+.TP
+.B FS_XFLAG_NOATIME
+Do not update file access time on reads.
+.TP
+.B FS_XFLAG_NODUMP
+Do not include file in backups.
+.TP
+.B FS_XFLAG_DAX
+Use Direct Access (DAX) for I/O operations.
+.TP
+.B FS_XFLAG_NODEFRAG
+Exclude this file from defragmentation operations.
+.TP
+.B FS_XFLAG_FILESTREAM
+Use filestream allocator for this file.
+.TP
+.B FS_XFLAG_EXTSIZE
+Use the extent size hint from the
+.I fa_extsize
+field.
+.TP
+.B FS_XFLAG_COWEXTSIZE
+Use the CoW extent size hint from the
+.I fa_cowextsize
+field.
+.RE
+.P
+Directory only flags:
+.RS
+.TP
+.B FS_XFLAG_RTINHERIT
+New files created in this directory inherit the realtime flag.
+.TP
+.B FS_XFLAG_NOSYMLINKS
+Disallow creation of symbolic links in this directory.
+.TP
+.B FS_XFLAG_EXTSZINHERIT
+New files created in this directory inherit the extent size hint.
+.TP
+.B FS_XFLAG_PROJINHERIT
+New files created in this directory inherit the project identifier.
+.RE
+.P
+The following flags are read-only:
+.RS
+.TP
+.B FS_XFLAG_PREALLOC
+File has preallocated extents.
+.TP
+.B FS_XFLAG_HASATTR
+File has extended attributes.
+.TP
+.B FS_XFLAG_VERITY
+File has fs-verity enabled.
+.TP
+.B FS_XFLAG_CASEFOLD
+The filesystem performs case-insensitive lookups (file and directory name
+comparisons ignore case).
+.TP
+.B FS_XFLAG_CASENONPRESERVING
+The filesystem does not preserve the case of file and directory names.
+.RE
+.P
+Not all filesystems support all flags.
+Setting unsupported flags may result in an
+.B EINVAL
+or
+.B EOPNOTSUPP
+error.
+.SH VERSIONS
+.SS Structure size
+The structure size is defined by
+.B FILE_ATTR_SIZE_VER*
+which is also a version of the structure being used.
+The
+.I size
+parameter passed to
+.BR file_getattr (2)
+and
+.BR file_setattr (2)
+indicates the version of
+.I struct file_attr\fP.
+.SS FILE_ATTR_SIZE_VER0
+Size is 24 bytes.
+.SH HISTORY
+.SS Linux v6.17
+This structure is introduced.
+The
+.I struct file_attr
+provides similar functionality to
+.I struct fsxattr
+used by the
+.B FS_IOC_FSGETXATTR
+and
+.B FS_IOC_FSSETXATTR
+.BR ioctl (2)
+operations,
+but is designed to be extensible through the
+.I size
+parameter of the system calls.
+.P
+Extra fields may be appended to the structure in future kernel versions.
+The kernel will expect new fields to be zeros
+for older versions of the structure.
+Therefore, a user
+.I must
+zero-fill the structure on initialization to keep compatibility with older
+kernels.
+.SS Linux v7.2
+The FS_XFLAG_CASEFOLD and FS_XFLAG_CASENONPRESERVING are introduced to enable
+upper layers, such as NFSD, to retrieve case sensitivity information.
+.SH SEE ALSO
+.BR file_getattr (2),
+.BR file_setattr (2)
|
| 3/2 | 2026/09/07 17:47 | llm | patch-evaluator |
0mModel:gemini-3.7-flash Args: null Results: null Tokens: input: 9087 output: 17 thoughts: 123 Thoughts: **Analyzing This Patch** Okay, let's dive into this patch. My initial assessment based on this diff is that we've got a documentation update, specifically new man pages. I see the addition of `man/man2/file_getattr.2`, `man/man2/file_setattr.2`, and `man/man2type/file_attr.2type`. Interesting. But I need to be *sure* this is just documentation. My gut says it probably is, but I can't be complacent. I need to quickly and comprehensively confirm that these are the only changes related to file attributes. So, before I sign off on this, I'm going to run a quick check. I'll need to use `git` to look at the commit, or perhaps jump over to a codesearch/grepper to search the entire codebase. I'm looking for any other modifications related to file attribute handling or any dependencies that might have been impacted. I need a clean bill of health before I move on. No surprises. |
| 4/2 | 2026/09/07 17:47 | tool | grepper |
0mArgs:{
"Expression": "file_getattr"
}Results: {
"Output": "Documentation/filesystems/fsverity.rst=350=parameters. See FS_IOC_ENABLE_VERITY.\nDocumentation/filesystems/fsverity.rst-351-\nDocumentation/filesystems/fsverity.rst:352:file_getattr\nDocumentation/filesystems/fsverity.rst-353-------------\nDocumentation/filesystems/fsverity.rst-354-\nDocumentation/filesystems/fsverity.rst:355:Since Linux v7.0, the file_getattr() syscall sets FS_XFLAG_VERITY (0x00020000)\nDocumentation/filesystems/fsverity.rst-356-in the returned flags when the file has verity enabled. Note that this attribute\n--\narch/alpha/kernel/syscalls/syscall.tbl-509-577\tcommon\topen_tree_attr\t\t\tsys_open_tree_attr\narch/alpha/kernel/syscalls/syscall.tbl:510:578\tcommon\tfile_getattr\t\t\tsys_file_getattr\narch/alpha/kernel/syscalls/syscall.tbl-511-579\tcommon\tfile_setattr\t\t\tsys_file_setattr\n--\narch/arm/tools/syscall.tbl-484-467\tcommon\topen_tree_attr\t\t\tsys_open_tree_attr\narch/arm/tools/syscall.tbl:485:468\tcommon\tfile_getattr\t\t\tsys_file_getattr\narch/arm/tools/syscall.tbl-486-469\tcommon\tfile_setattr\t\t\tsys_file_setattr\n--\narch/arm64/tools/syscall_32.tbl-481-467\tcommon\topen_tree_attr\t\t\tsys_open_tree_attr\narch/arm64/tools/syscall_32.tbl:482:468\tcommon\tfile_getattr\t\t\tsys_file_getattr\narch/arm64/tools/syscall_32.tbl-483-469\tcommon\tfile_setattr\t\t\tsys_file_setattr\n--\narch/m68k/kernel/syscalls/syscall.tbl-469-467\tcommon\topen_tree_attr\t\t\tsys_open_tree_attr\narch/m68k/kernel/syscalls/syscall.tbl:470:468\tcommon\tfile_getattr\t\t\tsys_file_getattr\narch/m68k/kernel/syscalls/syscall.tbl-471-469\tcommon\tfile_setattr\t\t\tsys_file_setattr\n--\narch/microblaze/kernel/syscalls/syscall.tbl-475-467\tcommon\topen_tree_attr\t\t\tsys_open_tree_attr\narch/microblaze/kernel/syscalls/syscall.tbl:476:468\tcommon\tfile_getattr\t\t\tsys_file_getattr\narch/microblaze/kernel/syscalls/syscall.tbl-477-469\tcommon\tfile_setattr\t\t\tsys_file_setattr\n--\narch/mips/kernel/syscalls/syscall_n32.tbl-408-467\tn32\topen_tree_attr\t\t\tsys_open_tree_attr\narch/mips/kernel/syscalls/syscall_n32.tbl:409:468\tn32\tfile_getattr\t\t\tsys_file_getattr\narch/mips/kernel/syscalls/syscall_n32.tbl-410-469\tn32\tfile_setattr\t\t\tsys_file_setattr\n--\narch/mips/kernel/syscalls/syscall_n64.tbl-384-467\tn64\topen_tree_attr\t\t\tsys_open_tree_attr\narch/mips/kernel/syscalls/syscall_n64.tbl:385:468\tn64\tfile_getattr\t\t\tsys_file_getattr\narch/mips/kernel/syscalls/syscall_n64.tbl-386-469\tn64\tfile_setattr\t\t\tsys_file_setattr\n--\narch/mips/kernel/syscalls/syscall_o32.tbl-457-467\to32\topen_tree_attr\t\t\tsys_open_tree_attr\narch/mips/kernel/syscalls/syscall_o32.tbl:458:468\to32\tfile_getattr\t\t\tsys_file_getattr\narch/mips/kernel/syscalls/syscall_o32.tbl-459-469\to32\tfile_setattr\t\t\tsys_file_setattr\n--\narch/parisc/kernel/syscalls/syscall.tbl-468-467\tcommon\topen_tree_attr\t\t\tsys_open_tree_attr\narch/parisc/kernel/syscalls/syscall.tbl:469:468\tcommon\tfile_getattr\t\t\tsys_file_getattr\narch/parisc/kernel/syscalls/syscall.tbl-470-469\tcommon\tfile_setattr\t\t\tsys_file_setattr\n--\narch/powerpc/kernel/syscalls/syscall.tbl-560-467\tcommon\topen_tree_attr\t\t\tsys_open_tree_attr\narch/powerpc/kernel/syscalls/syscall.tbl:561:468\tcommon\tfile_getattr\t\t\tsys_file_getattr\narch/powerpc/kernel/syscalls/syscall.tbl-562-469\tcommon\tfile_setattr\t\t\tsys_file_setattr\n--\narch/s390/kernel/syscalls/syscall.tbl-396-467\tcommon\topen_tree_attr\t\t\tsys_open_tree_attr\narch/s390/kernel/syscalls/syscall.tbl:397:468\tcommon\tfile_getattr\t\t\tsys_file_getattr\narch/s390/kernel/syscalls/syscall.tbl-398-469\tcommon\tfile_setattr\t\t\tsys_file_setattr\n--\narch/sh/kernel/syscalls/syscall.tbl-473-467\tcommon\topen_tree_attr\t\t\tsys_open_tree_attr\narch/sh/kernel/syscalls/syscall.tbl:474:468\tcommon\tfile_getattr\t\t\tsys_file_getattr\narch/sh/kernel/syscalls/syscall.tbl-475-469\tcommon\tfile_setattr\t\t\tsys_file_setattr\n--\narch/sparc/kernel/syscalls/syscall.tbl-515-467\tcommon\topen_tree_attr\t\t\tsys_open_tree_attr\narch/sparc/kernel/syscalls/syscall.tbl:516:468\tcommon\tfile_getattr\t\t\tsys_file_getattr\narch/sparc/kernel/syscalls/syscall.tbl-517-469\tcommon\tfile_setattr\t\t\tsys_file_setattr\n--\narch/x86/entry/syscalls/syscall_32.tbl-475-467\ti386\topen_tree_attr\t\tsys_open_tree_attr\narch/x86/entry/syscalls/syscall_32.tbl:476:468\ti386\tfile_getattr\t\tsys_file_getattr\narch/x86/entry/syscalls/syscall_32.tbl-477-469\ti386\tfile_setattr\t\tsys_file_setattr\n--\narch/x86/entry/syscalls/syscall_64.tbl-394-467\tcommon\topen_tree_attr\t\tsys_open_tree_attr\narch/x86/entry/syscalls/syscall_64.tbl:395:468\tcommon\tfile_getattr\t\tsys_file_getattr\narch/x86/entry/syscalls/syscall_64.tbl-396-469\tcommon\tfile_setattr\t\tsys_file_setattr\n--\narch/xtensa/kernel/syscalls/syscall.tbl-440-467\tcommon\topen_tree_attr\t\t\tsys_open_tree_attr\narch/xtensa/kernel/syscalls/syscall.tbl:441:468\tcommon\tfile_getattr\t\t\tsys_file_getattr\narch/xtensa/kernel/syscalls/syscall.tbl-442-469\tcommon\tfile_setattr\t\t\tsys_file_setattr\n--\nfs/ext4/ext4.h=3188=extern void ext4_clear_inode(struct inode *);\nfs/ext4/ext4.h:3189:extern int ext4_file_getattr(struct mnt_idmap *, const struct path *,\nfs/ext4/ext4.h-3190-\t\t\t struct kstat *, u32, unsigned int);\n--\nfs/ext4/file.c=1058=const struct inode_operations ext4_file_inode_operations = {\nfs/ext4/file.c-1059-\t.setattr\t= ext4_setattr,\nfs/ext4/file.c:1060:\t.getattr\t= ext4_file_getattr,\nfs/ext4/file.c-1061-\t.listxattr\t= ext4_listxattr,\n--\nfs/ext4/inode.c=6266=int ext4_getattr(struct mnt_idmap *idmap, const struct path *path,\n--\nfs/ext4/inode.c-6334-\nfs/ext4/inode.c:6335:int ext4_file_getattr(struct mnt_idmap *idmap,\nfs/ext4/inode.c-6336-\t\t const struct path *path, struct kstat *stat,\n--\nfs/file_attr.c=86=int vfs_fileattr_get(struct dentry *dentry, struct file_kattr *fa)\n--\nfs/file_attr.c-93-\nfs/file_attr.c:94:\terror = security_inode_file_getattr(dentry, fa);\nfs/file_attr.c-95-\tif (error)\n--\nfs/file_attr.c=356=int ioctl_fssetxattr(struct file *file, void __user *argp)\n--\nfs/file_attr.c-373-\nfs/file_attr.c:374:SYSCALL_DEFINE5(file_getattr, int, dfd, const char __user *, filename,\nfs/file_attr.c-375-\t\tstruct file_attr __user *, ufattr, size_t, usize,\n--\ninclude/asm-generic/audit_read.h=22=__NR_readlinkat,\ninclude/asm-generic/audit_read.h-23-#endif\ninclude/asm-generic/audit_read.h:24:#ifdef __NR_file_getattr\ninclude/asm-generic/audit_read.h:25:__NR_file_getattr,\ninclude/asm-generic/audit_read.h-26-#endif\n--\ninclude/linux/lsm_hook_defs.h=160=LSM_HOOK(int, 0, inode_file_setattr, struct dentry *dentry, struct file_kattr *fa)\ninclude/linux/lsm_hook_defs.h:161:LSM_HOOK(int, 0, inode_file_getattr, struct dentry *dentry, struct file_kattr *fa)\ninclude/linux/lsm_hook_defs.h-162-LSM_HOOK(int, 0, inode_set_acl, struct mnt_idmap *idmap,\n--\ninclude/linux/security.h=452=int security_inode_file_setattr(struct dentry *dentry,\ninclude/linux/security.h-453-\t\t\t struct file_kattr *fa);\ninclude/linux/security.h:454:int security_inode_file_getattr(struct dentry *dentry,\ninclude/linux/security.h-455-\t\t\t struct file_kattr *fa);\n--\ninclude/linux/security.h=1064=static inline int security_inode_file_setattr(struct dentry *dentry,\n--\ninclude/linux/security.h-1069-\ninclude/linux/security.h:1070:static inline int security_inode_file_getattr(struct dentry *dentry,\ninclude/linux/security.h-1071-\t\t\t\t\t struct file_kattr *fa)\n--\ninclude/linux/syscalls.h=378=asmlinkage long sys_fremovexattr(int fd, const char __user *name);\ninclude/linux/syscalls.h:379:asmlinkage long sys_file_getattr(int dfd, const char __user *filename,\ninclude/linux/syscalls.h-380-\t\t\t\t struct file_attr __user *attr, size_t usize,\n--\ninclude/uapi/asm-generic/unistd.h=853=__SYSCALL(__NR_open_tree_attr, sys_open_tree_attr)\n--\ninclude/uapi/asm-generic/unistd.h-855-/* fs/inode.c */\ninclude/uapi/asm-generic/unistd.h:856:#define __NR_file_getattr 468\ninclude/uapi/asm-generic/unistd.h:857:__SYSCALL(__NR_file_getattr, sys_file_getattr)\ninclude/uapi/asm-generic/unistd.h-858-#define __NR_file_setattr 469\n--\nman/man2/file_getattr.2-4-.\\\"\nman/man2/file_getattr.2:5:.TH file_getattr 2 (date) \"Linux man-pages (unreleased)\"\nman/man2/file_getattr.2-6-.SH NAME\nman/man2/file_getattr.2:7:file_getattr \\- get filesystem inode attributes\nman/man2/file_getattr.2-8-.SH SYNOPSIS\n--\nman/man2/file_getattr.2-14-.P\nman/man2/file_getattr.2:15:.B long syscall(SYS_file_getattr,\nman/man2/file_getattr.2-16-.BI \" int \" dirfd \", const char *\" pathname ,\n--\nman/man2/file_getattr.2=22=glibc provides no wrapper for\nman/man2/file_getattr.2:23:.BR file_getattr (),\nman/man2/file_getattr.2-24-use\n--\nman/man2/file_getattr.2=28=The\nman/man2/file_getattr.2:29:.BR file_getattr ()\nman/man2/file_getattr.2-30-system call retrieves filesystem file attributes\n--\nman/man2/file_getattr.2=39=By using a pathname,\nman/man2/file_getattr.2:40:.BR file_getattr ()\nman/man2/file_getattr.2-41-can retrieve filesystem file attributes\n--\nman/man2/file_getattr.2=83=before calling\nman/man2/file_getattr.2:84:.BR file_getattr ()\nman/man2/file_getattr.2-85-to ensure that fields not filled in by older kernels\n--\nman/man2/file_getattr.2=229=The program below demonstrates the use of\nman/man2/file_getattr.2:230:.BR file_getattr ()\nman/man2/file_getattr.2-231-to retrieve and display file attributes.\n--\nman/man2/file_getattr.2-241-\nman/man2/file_getattr.2:242:#ifndef SYS_file_getattr\nman/man2/file_getattr.2:243:#define SYS_file_getattr 467\nman/man2/file_getattr.2-244-#endif\n--\nman/man2/file_getattr.2=247=main(int argc, char *argv[])\n--\nman/man2/file_getattr.2-257-\nman/man2/file_getattr.2:258: ret = syscall(SYS_file_getattr, AT_FDCWD, argv[1], \u0026fa, sizeof(fa), 0);\nman/man2/file_getattr.2-259- if (ret == \\-1) {\nman/man2/file_getattr.2:260: perror(\"file_getattr\");\nman/man2/file_getattr.2-261- exit(EXIT_FAILURE);\n--\nman/man2/file_setattr.2=265=flag on a file.\n--\nman/man2/file_setattr.2-277-\nman/man2/file_setattr.2:278:#ifndef SYS_file_getattr\nman/man2/file_setattr.2:279:#define SYS_file_getattr 467\nman/man2/file_setattr.2-280-#endif\n--\nman/man2/file_setattr.2=287=main(int argc, char *argv[])\n--\nman/man2/file_setattr.2-303-\nman/man2/file_setattr.2:304: ret = syscall(SYS_file_getattr, dfd, \"\", \u0026fa, sizeof(fa), AT_EMPTY_PATH);\nman/man2/file_setattr.2-305- if (ret == \\-1) {\nman/man2/file_setattr.2:306: perror(\"file_getattr\");\nman/man2/file_setattr.2-307- exit(EXIT_FAILURE);\n--\nman/man2/file_setattr.2-319-\nman/man2/file_setattr.2:320: ret = syscall(SYS_file_getattr, dfd, \"\", \u0026fa, sizeof(fa), AT_EMPTY_PATH);\nman/man2/file_setattr.2-321- if (ret == \\-1) {\nman/man2/file_setattr.2:322: perror(\"file_getattr\");\nman/man2/file_setattr.2-323- exit(EXIT_FAILURE);\n--\nman/man2/file_setattr.2-334-.SH SEE ALSO\nman/man2/file_setattr.2:335:.BR file_getattr (2),\nman/man2/file_setattr.2-336-.BR ioctl (2),\n--\nman/man2type/file_attr.2type=22=for use with the\nman/man2type/file_attr.2type:23:.BR file_getattr (2)\nman/man2type/file_attr.2type-24-and\n--\nman/man2type/file_attr.2type=46=This field is filled in by\nman/man2type/file_attr.2type:47:.BR file_getattr (2)\nman/man2type/file_attr.2type-48-and is ignored by\n--\nman/man2type/file_attr.2type=150=parameter passed to\nman/man2type/file_attr.2type:151:.BR file_getattr (2)\nman/man2type/file_attr.2type-152-and\n--\nman/man2type/file_attr.2type=184=upper layers, such as NFSD, to retrieve case sensitivity information.\nman/man2type/file_attr.2type-185-.SH SEE ALSO\nman/man2type/file_attr.2type:186:.BR file_getattr (2),\nman/man2type/file_attr.2type-187-.BR file_setattr (2)\n--\nscripts/syscall.tbl-410-467\tcommon\topen_tree_attr\t\t\tsys_open_tree_attr\nscripts/syscall.tbl:411:468\tcommon\tfile_getattr\t\t\tsys_file_getattr\nscripts/syscall.tbl-412-469\tcommon\tfile_setattr\t\t\tsys_file_setattr\n--\nsecurity/security.c=2153=int security_inode_file_setattr(struct dentry *dentry, struct file_kattr *fa)\n--\nsecurity/security.c-2158-/**\nsecurity/security.c:2159: * security_inode_file_getattr() - check if retrieving fsxattr is allowed\nsecurity/security.c-2160- * @dentry: file to retrieve filesystem extended attributes from\n--\nsecurity/security.c-2162- *\nsecurity/security.c:2163: * Called when file_getattr() syscall or FS_IOC_FSGETXATTR ioctl() is called on\nsecurity/security.c-2164- * inode\n--\nsecurity/security.c-2167- */\nsecurity/security.c:2168:int security_inode_file_getattr(struct dentry *dentry, struct file_kattr *fa)\nsecurity/security.c-2169-{\nsecurity/security.c:2170:\treturn call_int_hook(inode_file_getattr, dentry, fa);\nsecurity/security.c-2171-}\n--\nsecurity/selinux/hooks.c=3544=static int selinux_inode_file_setattr(struct dentry *dentry,\n--\nsecurity/selinux/hooks.c-3549-\nsecurity/selinux/hooks.c:3550:static int selinux_inode_file_getattr(struct dentry *dentry,\nsecurity/selinux/hooks.c-3551-\t\t\t\t struct file_kattr *fa)\n--\nsecurity/selinux/hooks.c=7560=static struct security_hook_list selinux_hooks[] __ro_after_init = {\n--\nsecurity/selinux/hooks.c-7619-\tLSM_HOOK_INIT(inode_removexattr, selinux_inode_removexattr),\nsecurity/selinux/hooks.c:7620:\tLSM_HOOK_INIT(inode_file_getattr, selinux_inode_file_getattr),\nsecurity/selinux/hooks.c-7621-\tLSM_HOOK_INIT(inode_file_setattr, selinux_inode_file_setattr),\n--\ntools/include/uapi/asm-generic/unistd.h=853=__SYSCALL(__NR_open_tree_attr, sys_open_tree_attr)\n--\ntools/include/uapi/asm-generic/unistd.h-855-/* fs/inode.c */\ntools/include/uapi/asm-generic/unistd.h:856:#define __NR_file_getattr 468\ntools/include/uapi/asm-generic/unistd.h:857:__SYSCALL(__NR_file_getattr, sys_file_getattr)\ntools/include/uapi/asm-generic/unistd.h-858-#define __NR_file_setattr 469\n--\ntools/perf/arch/arm/entry/syscalls/syscall.tbl-484-467\tcommon\topen_tree_attr\t\t\tsys_open_tree_attr\ntools/perf/arch/arm/entry/syscalls/syscall.tbl:485:468\tcommon\tfile_getattr\t\t\tsys_file_getattr\ntools/perf/arch/arm/entry/syscalls/syscall.tbl-486-469\tcommon\tfile_setattr\t\t\tsys_file_setattr\n--\ntools/perf/arch/mips/entry/syscalls/syscall_n64.tbl-384-467\tn64\topen_tree_attr\t\t\tsys_open_tree_attr\ntools/perf/arch/mips/entry/syscalls/syscall_n64.tbl:385:468\tn64\tfile_getattr\t\t\tsys_file_getattr\ntools/perf/arch/mips/entry/syscalls/syscall_n64.tbl-386-469\tn64\tfile_setattr\t\t\tsys_file_setattr\n--\ntools/perf/arch/powerpc/entry/syscalls/syscall.tbl-560-467\tcommon\topen_tree_attr\t\t\tsys_open_tree_attr\ntools/perf/arch/powerpc/entry/syscalls/syscall.tbl:561:468\tcommon\tfile_getattr\t\t\tsys_file_getattr\ntools/perf/arch/powerpc/entry/syscalls/syscall.tbl-562-469\tcommon\tfile_setattr\t\t\tsys_file_setattr\n--\ntools/perf/arch/s390/entry/syscalls/syscall.tbl-396-467\tcommon\topen_tree_attr\t\t\tsys_open_tree_attr\ntools/perf/arch/s390/entry/syscalls/syscall.tbl:397:468\tcommon\tfile_getattr\t\t\tsys_file_getattr\ntools/perf/arch/s390/entry/syscalls/syscall.tbl-398-469\tcommon\tfile_setattr\t\t\tsys_file_setattr\n--\ntools/perf/arch/sh/entry/syscalls/syscall.tbl-473-467\tcommon\topen_tree_attr\t\t\tsys_open_tree_attr\ntools/perf/arch/sh/entry/syscalls/syscall.tbl:474:468\tcommon\tfile_getattr\t\t\tsys_file_getattr\ntools/perf/arch/sh/entry/syscalls/syscall.tbl-475-469\tcommon\tfile_setattr\t\t\tsys_file_setattr\n--\ntools/perf/arch/sparc/entry/syscalls/syscall.tbl-515-467\tcommon\topen_tree_attr\t\t\tsys_open_tree_attr\ntools/perf/arch/sparc/entry/syscalls/syscall.tbl:516:468\tcommon\tfile_getattr\t\t\tsys_file_getattr\ntools/perf/arch/sparc/entry/syscalls/syscall.tbl-517-469\tcommon\tfile_setattr\t\t\tsys_file_setattr\n--\ntools/perf/arch/x86/entry/syscalls/syscall_32.tbl-475-467\ti386\topen_tree_attr\t\tsys_open_tree_attr\ntools/perf/arch/x86/entry/syscalls/syscall_32.tbl:476:468\ti386\tfile_getattr\t\tsys_file_getattr\ntools/perf/arch/x86/entry/syscalls/syscall_32.tbl-477-469\ti386\tfile_setattr\t\tsys_file_setattr\n--\ntools/perf/arch/x86/entry/syscalls/syscall_64.tbl-394-467\tcommon\topen_tree_attr\t\tsys_open_tree_attr\ntools/perf/arch/x86/entry/syscalls/syscall_64.tbl:395:468\tcommon\tfile_getattr\t\tsys_file_getattr\ntools/perf/arch/x86/entry/syscalls/syscall_64.tbl-396-469\tcommon\tfile_setattr\t\tsys_file_setattr\n--\ntools/perf/arch/xtensa/entry/syscalls/syscall.tbl-440-467\tcommon\topen_tree_attr\t\t\tsys_open_tree_attr\ntools/perf/arch/xtensa/entry/syscalls/syscall.tbl:441:468\tcommon\tfile_getattr\t\t\tsys_file_getattr\ntools/perf/arch/xtensa/entry/syscalls/syscall.tbl-442-469\tcommon\tfile_setattr\t\t\tsys_file_setattr\n--\ntools/scripts/syscall.tbl-410-467\tcommon\topen_tree_attr\t\t\tsys_open_tree_attr\ntools/scripts/syscall.tbl:411:468\tcommon\tfile_getattr\t\t\tsys_file_getattr\ntools/scripts/syscall.tbl-412-469\tcommon\tfile_setattr\t\t\tsys_file_setattr\n"
} |
| 5/2 | 2026/09/07 17:47 | llm | patch-evaluator |
0mModel:gemini-3.7-flash Args: null Results: null Tokens: input: 16344 output: 100 thoughts: 512 Thoughts: **WorthFuzzing Decision: A Quick Review** Okay, let's take a look at this commit's diff to be absolutely certain. *Checks diff*: Right, it's just adding new man pages: `file_getattr.2`, `file_setattr.2`, and `file_attr.2type`. All within the `man/` directory. No changes to actual code, just documentation. Now, let's run through Section 2's negative criteria. *Reads Section 2*: Hmm, "Non-kernel and non-executable changes..." Okay, that section covers "Modifications to Documentation," and "User-space directories... that do not affect the compiled kernel image..." Bingo! This patch falls squarely into that category. It's *purely* adding documentation; no executable code is touched, and certainly no kernel code. Therefore, `WorthFuzzing` has to be `false`. No need to enable any specific configs (`EnableConfigs = []`), and there are no focal symbols to track (`FocusSymbols = []`). The reasoning is straightforward: this is documentation, plain and simple, and it doesn't affect the kernel's runtime behavior. *Determines*: `Reasoning: The patch only adds man pages (documentation) in man/man2/ and man/man2type/ and does not modify any kernel source code.` Alright, time to execute `set-results`. |
| 6/2 | 2026/09/07 17:47 | tool | set-results |
0mArgs:{
"EnableConfigs": [],
"FocusSymbols": [],
"Reasoning": "The patch series only adds user-space man-page documentation files under the man/ directory (man/man2/file_getattr.2, man/man2/file_setattr.2, and man/man2type/file_attr.2type) and does not modify any executable kernel source code or data structures.",
"WorthFuzzing": false
}Results: {
"EnableConfigs": null,
"FocusSymbols": [],
"Reasoning": "The patch series only adds user-space man-page documentation files under the man/ directory (man/man2/file_getattr.2, man/man2/file_setattr.2, and man/man2type/file_attr.2type) and does not modify any executable kernel source code or data structures.",
"WorthFuzzing": false
} |
| 7/1 | 2026/09/07 17:47 | action | If |
0mArgs:{
"WorthFuzzing": false
}Results: null |
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