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tools/include: Sync filesystem headers with the kernel sources
To pick up changes from:0f9ca80fa4fs: Add initial atomic write support info to statxf9af549d1ffs: export mount options via statmount()0a3deb1185fs: Allow listmount() in foreign mount namespace09b31295f8fs: export the mount ns id via statmountd04bccd8c1listmount: allow listing in reverse orderbfc69fd05efs/procfs: add build ID fetching to PROCMAP_QUERY APIed5d583a88fs/procfs: implement efficient VMA querying API for /proc/<pid>/maps This should be used to beautify FS syscall arguments and it addresses these tools/perf build warnings: Warning: Kernel ABI header differences: diff -u tools/include/uapi/linux/stat.h include/uapi/linux/stat.h diff -u tools/perf/trace/beauty/include/uapi/linux/fs.h include/uapi/linux/fs.h diff -u tools/perf/trace/beauty/include/uapi/linux/mount.h include/uapi/linux/mount.h diff -u tools/perf/trace/beauty/include/uapi/linux/stat.h include/uapi/linux/stat.h Please see tools/include/uapi/README for details (it's in the first patch of this series). Cc: Alexander Viro <viro@zeniv.linux.org.uk> Cc: Christian Brauner <brauner@kernel.org> Cc: Jan Kara <jack@suse.cz> Cc: linux-fsdevel@vger.kernel.org Signed-off-by: Namhyung Kim <namhyung@kernel.org>
This commit is contained in:
Namhyung Kim
parent
ed86525f1f
commit
845295f400
@ -126,9 +126,15 @@ struct statx {
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__u64 stx_mnt_id;
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__u32 stx_dio_mem_align; /* Memory buffer alignment for direct I/O */
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__u32 stx_dio_offset_align; /* File offset alignment for direct I/O */
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__u64 stx_subvol; /* Subvolume identifier */
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/* 0xa0 */
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__u64 __spare3[11]; /* Spare space for future expansion */
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__u64 stx_subvol; /* Subvolume identifier */
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__u32 stx_atomic_write_unit_min; /* Min atomic write unit in bytes */
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__u32 stx_atomic_write_unit_max; /* Max atomic write unit in bytes */
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/* 0xb0 */
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__u32 stx_atomic_write_segments_max; /* Max atomic write segment count */
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__u32 __spare1[1];
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/* 0xb8 */
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__u64 __spare3[9]; /* Spare space for future expansion */
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/* 0x100 */
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};
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@ -157,6 +163,7 @@ struct statx {
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#define STATX_DIOALIGN 0x00002000U /* Want/got direct I/O alignment info */
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#define STATX_MNT_ID_UNIQUE 0x00004000U /* Want/got extended stx_mount_id */
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#define STATX_SUBVOL 0x00008000U /* Want/got stx_subvol */
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#define STATX_WRITE_ATOMIC 0x00010000U /* Want/got atomic_write_* fields */
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#define STATX__RESERVED 0x80000000U /* Reserved for future struct statx expansion */
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@ -192,6 +199,7 @@ struct statx {
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#define STATX_ATTR_MOUNT_ROOT 0x00002000 /* Root of a mount */
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#define STATX_ATTR_VERITY 0x00100000 /* [I] Verity protected file */
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#define STATX_ATTR_DAX 0x00200000 /* File is currently in DAX state */
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#define STATX_ATTR_WRITE_ATOMIC 0x00400000 /* File supports atomic write operations */
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#endif /* _UAPI_LINUX_STAT_H */
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@ -329,12 +329,17 @@ typedef int __bitwise __kernel_rwf_t;
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/* per-IO negation of O_APPEND */
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#define RWF_NOAPPEND ((__force __kernel_rwf_t)0x00000020)
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/* Atomic Write */
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#define RWF_ATOMIC ((__force __kernel_rwf_t)0x00000040)
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/* mask of flags supported by the kernel */
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#define RWF_SUPPORTED (RWF_HIPRI | RWF_DSYNC | RWF_SYNC | RWF_NOWAIT |\
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RWF_APPEND | RWF_NOAPPEND)
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RWF_APPEND | RWF_NOAPPEND | RWF_ATOMIC)
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#define PROCFS_IOCTL_MAGIC 'f'
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/* Pagemap ioctl */
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#define PAGEMAP_SCAN _IOWR('f', 16, struct pm_scan_arg)
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#define PAGEMAP_SCAN _IOWR(PROCFS_IOCTL_MAGIC, 16, struct pm_scan_arg)
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/* Bitmasks provided in pm_scan_args masks and reported in page_region.categories. */
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#define PAGE_IS_WPALLOWED (1 << 0)
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@ -393,4 +398,158 @@ struct pm_scan_arg {
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__u64 return_mask;
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};
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/* /proc/<pid>/maps ioctl */
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#define PROCMAP_QUERY _IOWR(PROCFS_IOCTL_MAGIC, 17, struct procmap_query)
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enum procmap_query_flags {
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/*
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* VMA permission flags.
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*
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* Can be used as part of procmap_query.query_flags field to look up
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* only VMAs satisfying specified subset of permissions. E.g., specifying
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* PROCMAP_QUERY_VMA_READABLE only will return both readable and read/write VMAs,
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* while having PROCMAP_QUERY_VMA_READABLE | PROCMAP_QUERY_VMA_WRITABLE will only
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* return read/write VMAs, though both executable/non-executable and
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* private/shared will be ignored.
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*
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* PROCMAP_QUERY_VMA_* flags are also returned in procmap_query.vma_flags
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* field to specify actual VMA permissions.
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*/
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PROCMAP_QUERY_VMA_READABLE = 0x01,
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PROCMAP_QUERY_VMA_WRITABLE = 0x02,
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PROCMAP_QUERY_VMA_EXECUTABLE = 0x04,
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PROCMAP_QUERY_VMA_SHARED = 0x08,
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/*
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* Query modifier flags.
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*
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* By default VMA that covers provided address is returned, or -ENOENT
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* is returned. With PROCMAP_QUERY_COVERING_OR_NEXT_VMA flag set, closest
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* VMA with vma_start > addr will be returned if no covering VMA is
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* found.
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*
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* PROCMAP_QUERY_FILE_BACKED_VMA instructs query to consider only VMAs that
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* have file backing. Can be combined with PROCMAP_QUERY_COVERING_OR_NEXT_VMA
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* to iterate all VMAs with file backing.
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*/
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PROCMAP_QUERY_COVERING_OR_NEXT_VMA = 0x10,
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PROCMAP_QUERY_FILE_BACKED_VMA = 0x20,
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};
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/*
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* Input/output argument structured passed into ioctl() call. It can be used
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* to query a set of VMAs (Virtual Memory Areas) of a process.
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*
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* Each field can be one of three kinds, marked in a short comment to the
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* right of the field:
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* - "in", input argument, user has to provide this value, kernel doesn't modify it;
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* - "out", output argument, kernel sets this field with VMA data;
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* - "in/out", input and output argument; user provides initial value (used
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* to specify maximum allowable buffer size), and kernel sets it to actual
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* amount of data written (or zero, if there is no data).
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*
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* If matching VMA is found (according to criterias specified by
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* query_addr/query_flags, all the out fields are filled out, and ioctl()
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* returns 0. If there is no matching VMA, -ENOENT will be returned.
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* In case of any other error, negative error code other than -ENOENT is
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* returned.
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*
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* Most of the data is similar to the one returned as text in /proc/<pid>/maps
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* file, but procmap_query provides more querying flexibility. There are no
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* consistency guarantees between subsequent ioctl() calls, but data returned
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* for matched VMA is self-consistent.
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*/
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struct procmap_query {
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/* Query struct size, for backwards/forward compatibility */
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__u64 size;
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/*
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* Query flags, a combination of enum procmap_query_flags values.
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* Defines query filtering and behavior, see enum procmap_query_flags.
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*
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* Input argument, provided by user. Kernel doesn't modify it.
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*/
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__u64 query_flags; /* in */
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/*
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* Query address. By default, VMA that covers this address will
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* be looked up. PROCMAP_QUERY_* flags above modify this default
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* behavior further.
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*
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* Input argument, provided by user. Kernel doesn't modify it.
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*/
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__u64 query_addr; /* in */
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/* VMA starting (inclusive) and ending (exclusive) address, if VMA is found. */
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__u64 vma_start; /* out */
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__u64 vma_end; /* out */
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/* VMA permissions flags. A combination of PROCMAP_QUERY_VMA_* flags. */
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__u64 vma_flags; /* out */
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/* VMA backing page size granularity. */
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__u64 vma_page_size; /* out */
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/*
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* VMA file offset. If VMA has file backing, this specifies offset
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* within the file that VMA's start address corresponds to.
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* Is set to zero if VMA has no backing file.
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*/
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__u64 vma_offset; /* out */
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/* Backing file's inode number, or zero, if VMA has no backing file. */
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__u64 inode; /* out */
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/* Backing file's device major/minor number, or zero, if VMA has no backing file. */
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__u32 dev_major; /* out */
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__u32 dev_minor; /* out */
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/*
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* If set to non-zero value, signals the request to return VMA name
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* (i.e., VMA's backing file's absolute path, with " (deleted)" suffix
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* appended, if file was unlinked from FS) for matched VMA. VMA name
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* can also be some special name (e.g., "[heap]", "[stack]") or could
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* be even user-supplied with prctl(PR_SET_VMA, PR_SET_VMA_ANON_NAME).
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*
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* Kernel will set this field to zero, if VMA has no associated name.
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* Otherwise kernel will return actual amount of bytes filled in
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* user-supplied buffer (see vma_name_addr field below), including the
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* terminating zero.
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*
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* If VMA name is longer that user-supplied maximum buffer size,
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* -E2BIG error is returned.
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*
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* If this field is set to non-zero value, vma_name_addr should point
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* to valid user space memory buffer of at least vma_name_size bytes.
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* If set to zero, vma_name_addr should be set to zero as well
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*/
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__u32 vma_name_size; /* in/out */
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/*
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* If set to non-zero value, signals the request to extract and return
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* VMA's backing file's build ID, if the backing file is an ELF file
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* and it contains embedded build ID.
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*
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* Kernel will set this field to zero, if VMA has no backing file,
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* backing file is not an ELF file, or ELF file has no build ID
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* embedded.
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*
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* Build ID is a binary value (not a string). Kernel will set
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* build_id_size field to exact number of bytes used for build ID.
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* If build ID is requested and present, but needs more bytes than
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* user-supplied maximum buffer size (see build_id_addr field below),
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* -E2BIG error will be returned.
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*
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* If this field is set to non-zero value, build_id_addr should point
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* to valid user space memory buffer of at least build_id_size bytes.
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* If set to zero, build_id_addr should be set to zero as well
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*/
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__u32 build_id_size; /* in/out */
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/*
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* User-supplied address of a buffer of at least vma_name_size bytes
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* for kernel to fill with matched VMA's name (see vma_name_size field
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* description above for details).
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*
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* Should be set to zero if VMA name should not be returned.
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*/
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__u64 vma_name_addr; /* in */
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/*
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* User-supplied address of a buffer of at least build_id_size bytes
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* for kernel to fill with matched VMA's ELF build ID, if available
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* (see build_id_size field description above for details).
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*
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* Should be set to zero if build ID should not be returned.
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*/
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__u64 build_id_addr; /* in */
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};
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#endif /* _UAPI_LINUX_FS_H */
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@ -154,7 +154,7 @@ struct mount_attr {
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*/
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struct statmount {
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__u32 size; /* Total size, including strings */
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__u32 __spare1;
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__u32 mnt_opts; /* [str] Mount options of the mount */
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__u64 mask; /* What results were written */
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__u32 sb_dev_major; /* Device ID */
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__u32 sb_dev_minor;
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@ -172,7 +172,8 @@ struct statmount {
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__u64 propagate_from; /* Propagation from in current namespace */
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__u32 mnt_root; /* [str] Root of mount relative to root of fs */
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__u32 mnt_point; /* [str] Mountpoint relative to current root */
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__u64 __spare2[50];
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__u64 mnt_ns_id; /* ID of the mount namespace */
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__u64 __spare2[49];
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char str[]; /* Variable size part containing strings */
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};
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@ -188,10 +189,12 @@ struct mnt_id_req {
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__u32 spare;
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__u64 mnt_id;
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__u64 param;
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__u64 mnt_ns_id;
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};
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/* List of all mnt_id_req versions. */
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#define MNT_ID_REQ_SIZE_VER0 24 /* sizeof first published struct */
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#define MNT_ID_REQ_SIZE_VER1 32 /* sizeof second published struct */
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/*
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* @mask bits for statmount(2)
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@ -202,10 +205,13 @@ struct mnt_id_req {
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#define STATMOUNT_MNT_ROOT 0x00000008U /* Want/got mnt_root */
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#define STATMOUNT_MNT_POINT 0x00000010U /* Want/got mnt_point */
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#define STATMOUNT_FS_TYPE 0x00000020U /* Want/got fs_type */
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#define STATMOUNT_MNT_NS_ID 0x00000040U /* Want/got mnt_ns_id */
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#define STATMOUNT_MNT_OPTS 0x00000080U /* Want/got mnt_opts */
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/*
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* Special @mnt_id values that can be passed to listmount
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*/
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#define LSMT_ROOT 0xffffffffffffffff /* root mount */
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#define LISTMOUNT_REVERSE (1 << 0) /* List later mounts first */
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#endif /* _UAPI_LINUX_MOUNT_H */
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@ -126,9 +126,15 @@ struct statx {
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__u64 stx_mnt_id;
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__u32 stx_dio_mem_align; /* Memory buffer alignment for direct I/O */
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__u32 stx_dio_offset_align; /* File offset alignment for direct I/O */
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__u64 stx_subvol; /* Subvolume identifier */
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/* 0xa0 */
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__u64 __spare3[11]; /* Spare space for future expansion */
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__u64 stx_subvol; /* Subvolume identifier */
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__u32 stx_atomic_write_unit_min; /* Min atomic write unit in bytes */
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__u32 stx_atomic_write_unit_max; /* Max atomic write unit in bytes */
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/* 0xb0 */
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__u32 stx_atomic_write_segments_max; /* Max atomic write segment count */
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__u32 __spare1[1];
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/* 0xb8 */
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__u64 __spare3[9]; /* Spare space for future expansion */
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/* 0x100 */
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};
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@ -157,6 +163,7 @@ struct statx {
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#define STATX_DIOALIGN 0x00002000U /* Want/got direct I/O alignment info */
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#define STATX_MNT_ID_UNIQUE 0x00004000U /* Want/got extended stx_mount_id */
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#define STATX_SUBVOL 0x00008000U /* Want/got stx_subvol */
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#define STATX_WRITE_ATOMIC 0x00010000U /* Want/got atomic_write_* fields */
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#define STATX__RESERVED 0x80000000U /* Reserved for future struct statx expansion */
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@ -192,6 +199,7 @@ struct statx {
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#define STATX_ATTR_MOUNT_ROOT 0x00002000 /* Root of a mount */
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#define STATX_ATTR_VERITY 0x00100000 /* [I] Verity protected file */
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#define STATX_ATTR_DAX 0x00200000 /* File is currently in DAX state */
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#define STATX_ATTR_WRITE_ATOMIC 0x00400000 /* File supports atomic write operations */
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#endif /* _UAPI_LINUX_STAT_H */
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