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| author | Brian Foster <bfoster@redhat.com> | 2012-11-07 18:21:12 +0100 |
|---|---|---|
| committer | Ben Myers <bpm@sgi.com> | 2012-11-08 22:27:49 +0100 |
| commit | 8ca149de80478441352a8622ea15fae7de703ced (patch) | |
| tree | d98cd5200aa1180b01925a400fe6e4155e0e5a0b /fs/xfs/xfs_fs.h | |
| parent | xfs: create function to scan and clear EOFBLOCKS inodes (diff) | |
| download | linux-8ca149de80478441352a8622ea15fae7de703ced.tar.xz linux-8ca149de80478441352a8622ea15fae7de703ced.zip | |
xfs: add XFS_IOC_FREE_EOFBLOCKS ioctl
The XFS_IOC_FREE_EOFBLOCKS ioctl allows users to invoke an EOFBLOCKS
scan. The xfs_eofblocks structure is defined to support the command
parameters (scan mode).
Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Mark Tinguely <tinguely@sgi.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
Diffstat (limited to 'fs/xfs/xfs_fs.h')
| -rw-r--r-- | fs/xfs/xfs_fs.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/fs/xfs/xfs_fs.h b/fs/xfs/xfs_fs.h index 0948c043443b..0cfa30813b16 100644 --- a/fs/xfs/xfs_fs.h +++ b/fs/xfs/xfs_fs.h @@ -340,6 +340,22 @@ typedef struct xfs_error_injection { /* + * Speculative preallocation trimming. + */ +#define XFS_EOFBLOCKS_VERSION 1 +struct xfs_eofblocks { + __u32 eof_version; + __u32 eof_flags; + __u64 pad[15]; +}; + +/* eof_flags values */ +#define XFS_EOF_FLAGS_SYNC (1 << 0) /* sync/wait mode scan */ +#define XFS_EOF_FLAGS_VALID \ + (XFS_EOF_FLAGS_SYNC) + + +/* * The user-level Handle Request interface structure. */ typedef struct xfs_fsop_handlereq { @@ -457,6 +473,7 @@ typedef struct xfs_handle { /* XFS_IOC_GETBIOSIZE ---- deprecated 47 */ #define XFS_IOC_GETBMAPX _IOWR('X', 56, struct getbmap) #define XFS_IOC_ZERO_RANGE _IOW ('X', 57, struct xfs_flock64) +#define XFS_IOC_FREE_EOFBLOCKS _IOR ('X', 58, struct xfs_eofblocks) /* * ioctl commands that replace IRIX syssgi()'s |