diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2018-08-14 08:56:02 -0700 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-08-14 08:56:02 -0700 |
commit | 781fca5b104693bc9242199cc47c690dcaf6a4cb (patch) | |
tree | d216d4299ae5715331a535c84bab390a907bebd6 /fs/xfs/libxfs/xfs_da_btree.c | |
parent | Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 (diff) | |
parent | xfs: fix a null pointer dereference in xfs_bmap_extents_to_btree (diff) | |
download | linux-dev-781fca5b104693bc9242199cc47c690dcaf6a4cb.tar.xz linux-dev-781fca5b104693bc9242199cc47c690dcaf6a4cb.zip |
Merge tag 'xfs-4.19-merge-6' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull xfs updates from Darrick Wong:
"This is the second part of the XFS changes for 4.19.
The biggest changes are the removal of buffer heads frm XFS, a massive
reworking of the deferred transaction operations handling code, the
removal of the long defunct barrier/nobarrier mount options, and the
addition of a few more online repair functions.
Summary:
- Use extent maps to track pagecache page status instead of
bufferhead state.
- Refactor pagecache read and write paths to use the new iomap
library functions, which enable us to drop the old bufferhead code
for pagesize == blocksize filesystems.
- Set up parallel per-block-per-page metadata to track subpage
information that was tracked by buffer heads, which enables us to
drop the old bufferhead code for pagesize > blocksize filesystems.
- Tie a deferred ops control structure to a transaction so that we
can take advantage of an upper-level dfops without having to plumb
pointer passing through the code.
- Refactor the deferred ops code to track deferred ops as part of the
transaction structure (instead of as a separate data structure) so
that we can simplify the scoping rules around defer_ops.
- Refactor twisty delwri buffer submission code to avoid deadlocks.
- Shorten and fix indenting problems in the scrub code.
- Detect obviously bad summary counts at mount and fix them.
- Directly associate deferred ops control structure with a
transaction so that callers no longer have to manage it themselves.
- Remove a couple of IRIX-era inode macros.
- Remove the long-deprecated 'barrier' and 'nobarrier' mount options.
- Clean up the inode fork structure a bit.
- Check for bad fs summary counter values in the superblock.
- Reduce COW fork lookups during writeback.
- Refactor the deferred ops control structures into the transaction
structure, thereby eliminating the need for transaction users to
handle the deferred ops as a separate data structure.
- Add the ability to repair AG headers online.
- Fix a crash due to insufficient return value checking.
- Various fixes and cleanups"
* tag 'xfs-4.19-merge-6' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: (155 commits)
xfs: fix a null pointer dereference in xfs_bmap_extents_to_btree
xfs: remove b_last_holder & associated macros
iomap: Switch to offset_in_page for clarity
xfs: Close race between direct IO and xfs_break_layouts()
xfs: repair the AGI
xfs: repair the AGFL
xfs: repair the AGF
xfs: remove dead error handling code in xfs_dquot_disk_alloc()
xfs: use WRITE_ONCE to update if_seq
xfs: fix a comment in xfs_log_reserve
xfs: only validate summary counts on primary superblock
xfs: substitute spaces with tabs
xfs: fold dfops into the transaction
xfs: always defer agfl block frees
xfs: pass transaction to xfs_defer_add()
xfs: replace xfs_defer_ops ->dop_pending with on-stack list
xfs: cancel dfops on xfs_defer_finish() error
xfs: clean out superfluous dfops dop params/vars
xfs: drop dop param from xfs_defer_op_type ->finish_item() callback
xfs: automatic dfops inode relogging
...
Diffstat (limited to 'fs/xfs/libxfs/xfs_da_btree.c')
-rw-r--r-- | fs/xfs/libxfs/xfs_da_btree.c | 37 |
1 files changed, 18 insertions, 19 deletions
diff --git a/fs/xfs/libxfs/xfs_da_btree.c b/fs/xfs/libxfs/xfs_da_btree.c index 8a301402bbc4..376bee94b5dd 100644 --- a/fs/xfs/libxfs/xfs_da_btree.c +++ b/fs/xfs/libxfs/xfs_da_btree.c @@ -1481,6 +1481,7 @@ xfs_da3_node_lookup_int( int error; int retval; unsigned int expected_level = 0; + uint16_t magic; struct xfs_inode *dp = state->args->dp; args = state->args; @@ -1505,25 +1506,27 @@ xfs_da3_node_lookup_int( return error; } curr = blk->bp->b_addr; - blk->magic = be16_to_cpu(curr->magic); + magic = be16_to_cpu(curr->magic); - if (blk->magic == XFS_ATTR_LEAF_MAGIC || - blk->magic == XFS_ATTR3_LEAF_MAGIC) { + if (magic == XFS_ATTR_LEAF_MAGIC || + magic == XFS_ATTR3_LEAF_MAGIC) { blk->magic = XFS_ATTR_LEAF_MAGIC; blk->hashval = xfs_attr_leaf_lasthash(blk->bp, NULL); break; } - if (blk->magic == XFS_DIR2_LEAFN_MAGIC || - blk->magic == XFS_DIR3_LEAFN_MAGIC) { + if (magic == XFS_DIR2_LEAFN_MAGIC || + magic == XFS_DIR3_LEAFN_MAGIC) { blk->magic = XFS_DIR2_LEAFN_MAGIC; blk->hashval = xfs_dir2_leaf_lasthash(args->dp, blk->bp, NULL); break; } - blk->magic = XFS_DA_NODE_MAGIC; + if (magic != XFS_DA_NODE_MAGIC && magic != XFS_DA3_NODE_MAGIC) + return -EFSCORRUPTED; + blk->magic = XFS_DA_NODE_MAGIC; /* * Search an intermediate node for a match. @@ -2059,11 +2062,9 @@ xfs_da_grow_inode_int( * Try mapping it in one filesystem block. */ nmap = 1; - ASSERT(args->firstblock != NULL); error = xfs_bmapi_write(tp, dp, *bno, count, xfs_bmapi_aflag(w)|XFS_BMAPI_METADATA|XFS_BMAPI_CONTIG, - args->firstblock, args->total, &map, &nmap, - args->dfops); + args->total, &map, &nmap); if (error) return error; @@ -2085,8 +2086,7 @@ xfs_da_grow_inode_int( c = (int)(*bno + count - b); error = xfs_bmapi_write(tp, dp, b, c, xfs_bmapi_aflag(w)|XFS_BMAPI_METADATA, - args->firstblock, args->total, - &mapp[mapi], &nmap, args->dfops); + args->total, &mapp[mapi], &nmap); if (error) goto out_free_map; if (nmap < 1) @@ -2375,13 +2375,13 @@ done: */ int xfs_da_shrink_inode( - xfs_da_args_t *args, - xfs_dablk_t dead_blkno, - struct xfs_buf *dead_buf) + struct xfs_da_args *args, + xfs_dablk_t dead_blkno, + struct xfs_buf *dead_buf) { - xfs_inode_t *dp; - int done, error, w, count; - xfs_trans_t *tp; + struct xfs_inode *dp; + int done, error, w, count; + struct xfs_trans *tp; trace_xfs_da_shrink_inode(args); @@ -2395,8 +2395,7 @@ xfs_da_shrink_inode( * the last block to the place we want to kill. */ error = xfs_bunmapi(tp, dp, dead_blkno, count, - xfs_bmapi_aflag(w), 0, args->firstblock, - args->dfops, &done); + xfs_bmapi_aflag(w), 0, &done); if (error == -ENOSPC) { if (w != XFS_DATA_FORK) break; |