diff options
Diffstat (limited to 'fs/xfs/libxfs')
-rw-r--r-- | fs/xfs/libxfs/xfs_attr.c | 4 | ||||
-rw-r--r-- | fs/xfs/libxfs/xfs_bmap.c | 21 | ||||
-rw-r--r-- | fs/xfs/libxfs/xfs_btree.c | 6 | ||||
-rw-r--r-- | fs/xfs/libxfs/xfs_dir2_data.c | 4 | ||||
-rw-r--r-- | fs/xfs/libxfs/xfs_quota_defs.h | 2 | ||||
-rw-r--r-- | fs/xfs/libxfs/xfs_refcount.c | 4 |
6 files changed, 36 insertions, 5 deletions
diff --git a/fs/xfs/libxfs/xfs_attr.c b/fs/xfs/libxfs/xfs_attr.c index ef8a1c75a467..de7b9bd30bec 100644 --- a/fs/xfs/libxfs/xfs_attr.c +++ b/fs/xfs/libxfs/xfs_attr.c @@ -114,12 +114,14 @@ xfs_inode_hasattr( * Overall external interface routines. *========================================================================*/ -/* Retrieve an extended attribute and its value. Must have iolock. */ +/* Retrieve an extended attribute and its value. Must have ilock. */ int xfs_attr_get_ilocked( struct xfs_inode *ip, struct xfs_da_args *args) { + ASSERT(xfs_isilocked(ip, XFS_ILOCK_SHARED | XFS_ILOCK_EXCL)); + if (!xfs_inode_hasattr(ip)) return -ENOATTR; else if (ip->i_d.di_aformat == XFS_DINODE_FMT_LOCAL) diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c index 0a9880777c9c..c09c16b1ad3b 100644 --- a/fs/xfs/libxfs/xfs_bmap.c +++ b/fs/xfs/libxfs/xfs_bmap.c @@ -5435,6 +5435,7 @@ __xfs_bunmapi( xfs_fsblock_t sum; xfs_filblks_t len = *rlen; /* length to unmap in file */ xfs_fileoff_t max_len; + xfs_agnumber_t prev_agno = NULLAGNUMBER, agno; trace_xfs_bunmap(ip, bno, len, flags, _RET_IP_); @@ -5534,6 +5535,17 @@ __xfs_bunmapi( */ del = got; wasdel = isnullstartblock(del.br_startblock); + + /* + * Make sure we don't touch multiple AGF headers out of order + * in a single transaction, as that could cause AB-BA deadlocks. + */ + if (!wasdel) { + agno = XFS_FSB_TO_AGNO(mp, del.br_startblock); + if (prev_agno != NULLAGNUMBER && prev_agno > agno) + break; + prev_agno = agno; + } if (got.br_startoff < start) { del.br_startoff = start; del.br_blockcount -= start - got.br_startoff; @@ -6499,6 +6511,15 @@ xfs_bmap_finish_one( xfs_fsblock_t firstfsb; int error = 0; + /* + * firstfsb is tied to the transaction lifetime and is used to + * ensure correct AG locking order and schedule work item + * continuations. XFS_BUI_MAX_FAST_EXTENTS (== 1) restricts us + * to only making one bmap call per transaction, so it should + * be safe to have it as a local variable here. + */ + firstfsb = NULLFSBLOCK; + trace_xfs_bmap_deferred(tp->t_mountp, XFS_FSB_TO_AGNO(tp->t_mountp, startblock), type, XFS_FSB_TO_AGBNO(tp->t_mountp, startblock), diff --git a/fs/xfs/libxfs/xfs_btree.c b/fs/xfs/libxfs/xfs_btree.c index 4da85fff69ad..e0bcc4a59efd 100644 --- a/fs/xfs/libxfs/xfs_btree.c +++ b/fs/xfs/libxfs/xfs_btree.c @@ -728,7 +728,8 @@ xfs_btree_firstrec( * Get the block pointer for this level. */ block = xfs_btree_get_block(cur, level, &bp); - xfs_btree_check_block(cur, block, level, bp); + if (xfs_btree_check_block(cur, block, level, bp)) + return 0; /* * It's empty, there is no such record. */ @@ -757,7 +758,8 @@ xfs_btree_lastrec( * Get the block pointer for this level. */ block = xfs_btree_get_block(cur, level, &bp); - xfs_btree_check_block(cur, block, level, bp); + if (xfs_btree_check_block(cur, block, level, bp)) + return 0; /* * It's empty, there is no such record. */ diff --git a/fs/xfs/libxfs/xfs_dir2_data.c b/fs/xfs/libxfs/xfs_dir2_data.c index d478065b9544..8727a43115ef 100644 --- a/fs/xfs/libxfs/xfs_dir2_data.c +++ b/fs/xfs/libxfs/xfs_dir2_data.c @@ -136,6 +136,8 @@ __xfs_dir3_data_check( */ if (be16_to_cpu(dup->freetag) == XFS_DIR2_DATA_FREE_TAG) { XFS_WANT_CORRUPTED_RETURN(mp, lastfree == 0); + XFS_WANT_CORRUPTED_RETURN(mp, endp >= + p + be16_to_cpu(dup->length)); XFS_WANT_CORRUPTED_RETURN(mp, be16_to_cpu(*xfs_dir2_data_unused_tag_p(dup)) == (char *)dup - (char *)hdr); @@ -164,6 +166,8 @@ __xfs_dir3_data_check( XFS_WANT_CORRUPTED_RETURN(mp, dep->namelen != 0); XFS_WANT_CORRUPTED_RETURN(mp, !xfs_dir_ino_validate(mp, be64_to_cpu(dep->inumber))); + XFS_WANT_CORRUPTED_RETURN(mp, endp >= + p + ops->data_entsize(dep->namelen)); XFS_WANT_CORRUPTED_RETURN(mp, be16_to_cpu(*ops->data_entry_tag_p(dep)) == (char *)dep - (char *)hdr); diff --git a/fs/xfs/libxfs/xfs_quota_defs.h b/fs/xfs/libxfs/xfs_quota_defs.h index 2834574cb6e7..d69c772271cb 100644 --- a/fs/xfs/libxfs/xfs_quota_defs.h +++ b/fs/xfs/libxfs/xfs_quota_defs.h @@ -136,8 +136,6 @@ typedef uint16_t xfs_qwarncnt_t; */ #define XFS_QMOPT_INHERIT 0x1000000 -#define XFS_QMOPT_NOLOCK 0x2000000 /* don't ilock during dqget */ - /* * flags to xfs_trans_mod_dquot. */ diff --git a/fs/xfs/libxfs/xfs_refcount.c b/fs/xfs/libxfs/xfs_refcount.c index 900ea231f9a3..45b1c3b4e047 100644 --- a/fs/xfs/libxfs/xfs_refcount.c +++ b/fs/xfs/libxfs/xfs_refcount.c @@ -1638,6 +1638,10 @@ xfs_refcount_recover_cow_leftovers( error = xfs_alloc_read_agf(mp, tp, agno, 0, &agbp); if (error) goto out_trans; + if (!agbp) { + error = -ENOMEM; + goto out_trans; + } cur = xfs_refcountbt_init_cursor(mp, tp, agbp, agno, NULL); /* Find all the leftover CoW staging extents. */ |