diff options
Diffstat (limited to 'fs/xfs')
| -rw-r--r-- | fs/xfs/xfs_fs.h | 3 | ||||
| -rw-r--r-- | fs/xfs/xfs_icache.c | 31 |
2 files changed, 33 insertions, 1 deletions
diff --git a/fs/xfs/xfs_fs.h b/fs/xfs/xfs_fs.h index d34703dbcb42..ffdabc687852 100644 --- a/fs/xfs/xfs_fs.h +++ b/fs/xfs/xfs_fs.h @@ -375,6 +375,9 @@ struct xfs_fs_eofblocks { #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_MINFILESIZE (1 << 4) /* filter by min file size */ +#define XFS_EOF_FLAGS_UNION (1 << 5) /* union filter algorithm; + * kernel only, not included in + * valid mask */ #define XFS_EOF_FLAGS_VALID \ (XFS_EOF_FLAGS_SYNC | \ XFS_EOF_FLAGS_UID | \ diff --git a/fs/xfs/xfs_icache.c b/fs/xfs/xfs_icache.c index 6e522ff5a006..43452081b705 100644 --- a/fs/xfs/xfs_icache.c +++ b/fs/xfs/xfs_icache.c @@ -1203,6 +1203,30 @@ xfs_inode_match_id( return 1; } +/* + * A union-based inode filtering algorithm. Process the inode if any of the + * criteria match. This is for global/internal scans only. + */ +STATIC int +xfs_inode_match_id_union( + struct xfs_inode *ip, + struct xfs_eofblocks *eofb) +{ + if ((eofb->eof_flags & XFS_EOF_FLAGS_UID) && + uid_eq(VFS_I(ip)->i_uid, eofb->eof_uid)) + return 1; + + if ((eofb->eof_flags & XFS_EOF_FLAGS_GID) && + gid_eq(VFS_I(ip)->i_gid, eofb->eof_gid)) + return 1; + + if ((eofb->eof_flags & XFS_EOF_FLAGS_PRID) && + xfs_get_projid(ip) == eofb->eof_prid) + return 1; + + return 0; +} + STATIC int xfs_inode_free_eofblocks( struct xfs_inode *ip, @@ -1212,6 +1236,7 @@ xfs_inode_free_eofblocks( int ret; struct xfs_eofblocks *eofb = args; bool need_iolock = true; + int match; ASSERT(!eofb || (eofb && eofb->eof_scan_owner != 0)); @@ -1231,7 +1256,11 @@ xfs_inode_free_eofblocks( return 0; if (eofb) { - if (!xfs_inode_match_id(ip, eofb)) + if (eofb->eof_flags & XFS_EOF_FLAGS_UNION) + match = xfs_inode_match_id_union(ip, eofb); + else + match = xfs_inode_match_id(ip, eofb); + if (!match) return 0; /* skip the inode if the file size is too small */ |