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| author | Brian Foster <bfoster@redhat.com> | 2012-11-07 12:21:13 -0500 |
|---|---|---|
| committer | Ben Myers <bpm@sgi.com> | 2012-11-08 15:29:14 -0600 |
| commit | 3e3f9f5863548e870edfcc72e7617ac8ddcad44a (patch) | |
| tree | ab1952acea4c3cad7048d6c168987ba7b7e73552 | |
| parent | 8ca149de80478441352a8622ea15fae7de703ced (diff) | |
| download | linux-3e3f9f5863548e870edfcc72e7617ac8ddcad44a.tar.gz | |
xfs: add inode id filtering to eofblocks scan
Support inode ID filtering in the eofblocks scan. The caller must set the associated XFS_EOF_FLAGS_*ID bit and ID field. 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>
| -rw-r--r-- | fs/xfs/xfs_fs.h | 14 | ||||
| -rw-r--r-- | fs/xfs/xfs_icache.c | 22 | ||||
| -rw-r--r-- | fs/xfs/xfs_ioctl.c | 3 |
3 files changed, 36 insertions, 3 deletions
diff --git a/fs/xfs/xfs_fs.h b/fs/xfs/xfs_fs.h index 0cfa30813b16..a19f9b205c15 100644 --- a/fs/xfs/xfs_fs.h +++ b/fs/xfs/xfs_fs.h @@ -346,13 +346,23 @@ typedef struct xfs_error_injection { struct xfs_eofblocks { __u32 eof_version; __u32 eof_flags; - __u64 pad[15]; + uid_t eof_uid; + gid_t eof_gid; + prid_t eof_prid; + __u32 pad32; + __u64 pad64[13]; }; /* eof_flags values */ #define XFS_EOF_FLAGS_SYNC (1 << 0) /* sync/wait mode scan */ +#define XFS_EOF_FLAGS_UID (1 << 1) /* filter by uid */ +#define XFS_EOF_FLAGS_GID (1 << 2) /* filter by gid */ +#define XFS_EOF_FLAGS_PRID (1 << 3) /* filter by project id */ #define XFS_EOF_FLAGS_VALID \ - (XFS_EOF_FLAGS_SYNC) + (XFS_EOF_FLAGS_SYNC | \ + XFS_EOF_FLAGS_UID | \ + XFS_EOF_FLAGS_GID | \ + XFS_EOF_FLAGS_PRID) /* diff --git a/fs/xfs/xfs_icache.c b/fs/xfs/xfs_icache.c index fbb74c715266..b239da91c43b 100644 --- a/fs/xfs/xfs_icache.c +++ b/fs/xfs/xfs_icache.c @@ -1171,6 +1171,21 @@ xfs_reclaim_inodes_count( } STATIC int +xfs_inode_match_id( + struct xfs_inode *ip, + struct xfs_eofblocks *eofb) +{ + if (eofb->eof_flags & XFS_EOF_FLAGS_UID) + return ip->i_d.di_uid == eofb->eof_uid; + else if (eofb->eof_flags & XFS_EOF_FLAGS_GID) + return ip->i_d.di_gid == eofb->eof_gid; + else if (eofb->eof_flags & XFS_EOF_FLAGS_PRID) + return xfs_get_projid(ip) == eofb->eof_prid; + + return 0; +} + +STATIC int xfs_inode_free_eofblocks( struct xfs_inode *ip, struct xfs_perag *pag, @@ -1178,6 +1193,7 @@ xfs_inode_free_eofblocks( void *args) { int ret; + struct xfs_eofblocks *eofb = args; if (!xfs_can_free_eofblocks(ip, false)) { /* inode could be preallocated or append-only */ @@ -1194,6 +1210,12 @@ xfs_inode_free_eofblocks( mapping_tagged(VFS_I(ip)->i_mapping, PAGECACHE_TAG_DIRTY)) return 0; + if (eofb && + (eofb->eof_flags & (XFS_EOF_FLAGS_UID|XFS_EOF_FLAGS_GID| + XFS_EOF_FLAGS_PRID)) && + !xfs_inode_match_id(ip, eofb)) + return 0; + ret = xfs_free_eofblocks(ip->i_mount, ip, true); /* don't revisit the inode if we're not waiting */ diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c index 5b20ab0b4f9d..c1c3ef88a260 100644 --- a/fs/xfs/xfs_ioctl.c +++ b/fs/xfs/xfs_ioctl.c @@ -1615,7 +1615,8 @@ xfs_file_ioctl( if (eofb.eof_flags & ~XFS_EOF_FLAGS_VALID) return -XFS_ERROR(EINVAL); - if (memchr_inv(eofb.pad, 0, sizeof(eofb.pad))) + if (memchr_inv(&eofb.pad32, 0, sizeof(eofb.pad32)) || + memchr_inv(eofb.pad64, 0, sizeof(eofb.pad64))) return -XFS_ERROR(EINVAL); error = xfs_icache_free_eofblocks(mp, &eofb); |