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author | Linus Torvalds <torvalds@linux-foundation.org> | 2018-08-14 18:56:02 +0300 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-08-14 18:56:02 +0300 |
commit | 781fca5b104693bc9242199cc47c690dcaf6a4cb (patch) | |
tree | d216d4299ae5715331a535c84bab390a907bebd6 /fs/xfs/libxfs/xfs_attr_leaf.c | |
parent | 10f3e23f07cb0c20f9bcb77a5b5a7eb2a1b2a2fe (diff) | |
parent | 01239d77b9dd978863d1a75f0d095ab942a1fe66 (diff) | |
download | linux-781fca5b104693bc9242199cc47c690dcaf6a4cb.tar.xz |
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_attr_leaf.c')
-rw-r--r-- | fs/xfs/libxfs/xfs_attr_leaf.c | 70 |
1 files changed, 40 insertions, 30 deletions
diff --git a/fs/xfs/libxfs/xfs_attr_leaf.c b/fs/xfs/libxfs/xfs_attr_leaf.c index 76e90046731c..6fc5425b1474 100644 --- a/fs/xfs/libxfs/xfs_attr_leaf.c +++ b/fs/xfs/libxfs/xfs_attr_leaf.c @@ -242,8 +242,9 @@ xfs_attr3_leaf_verify( struct xfs_attr3_icleaf_hdr ichdr; struct xfs_mount *mp = bp->b_target->bt_mount; struct xfs_attr_leafblock *leaf = bp->b_addr; - struct xfs_perag *pag = bp->b_pag; struct xfs_attr_leaf_entry *entries; + uint16_t end; + int i; xfs_attr3_leaf_hdr_from_disk(mp->m_attr_geo, &ichdr, leaf); @@ -268,7 +269,7 @@ xfs_attr3_leaf_verify( * because we may have transitioned an empty shortform attr to a leaf * if the attr didn't fit in shortform. */ - if (pag && pag->pagf_init && ichdr.count == 0) + if (!xfs_log_in_recovery(mp) && ichdr.count == 0) return __this_address; /* @@ -289,6 +290,26 @@ xfs_attr3_leaf_verify( /* XXX: need to range check rest of attr header values */ /* XXX: hash order check? */ + /* + * Quickly check the freemap information. Attribute data has to be + * aligned to 4-byte boundaries, and likewise for the free space. + */ + for (i = 0; i < XFS_ATTR_LEAF_MAPSIZE; i++) { + if (ichdr.freemap[i].base > mp->m_attr_geo->blksize) + return __this_address; + if (ichdr.freemap[i].base & 0x3) + return __this_address; + if (ichdr.freemap[i].size > mp->m_attr_geo->blksize) + return __this_address; + if (ichdr.freemap[i].size & 0x3) + return __this_address; + end = ichdr.freemap[i].base + ichdr.freemap[i].size; + if (end < ichdr.freemap[i].base) + return __this_address; + if (end > mp->m_attr_geo->blksize) + return __this_address; + } + return NULL; } @@ -506,7 +527,7 @@ xfs_attr_shortform_create(xfs_da_args_t *args) { xfs_attr_sf_hdr_t *hdr; xfs_inode_t *dp; - xfs_ifork_t *ifp; + struct xfs_ifork *ifp; trace_xfs_attr_sf_create(args); @@ -541,7 +562,7 @@ xfs_attr_shortform_add(xfs_da_args_t *args, int forkoff) int i, offset, size; xfs_mount_t *mp; xfs_inode_t *dp; - xfs_ifork_t *ifp; + struct xfs_ifork *ifp; trace_xfs_attr_sf_add(args); @@ -682,7 +703,7 @@ xfs_attr_shortform_lookup(xfs_da_args_t *args) xfs_attr_shortform_t *sf; xfs_attr_sf_entry_t *sfe; int i; - xfs_ifork_t *ifp; + struct xfs_ifork *ifp; trace_xfs_attr_sf_lookup(args); @@ -747,18 +768,18 @@ xfs_attr_shortform_getvalue(xfs_da_args_t *args) */ int xfs_attr_shortform_to_leaf( - struct xfs_da_args *args, - struct xfs_buf **leaf_bp) + struct xfs_da_args *args, + struct xfs_buf **leaf_bp) { - xfs_inode_t *dp; - xfs_attr_shortform_t *sf; - xfs_attr_sf_entry_t *sfe; - xfs_da_args_t nargs; - char *tmpbuffer; - int error, i, size; - xfs_dablk_t blkno; - struct xfs_buf *bp; - xfs_ifork_t *ifp; + struct xfs_inode *dp; + struct xfs_attr_shortform *sf; + struct xfs_attr_sf_entry *sfe; + struct xfs_da_args nargs; + char *tmpbuffer; + int error, i, size; + xfs_dablk_t blkno; + struct xfs_buf *bp; + struct xfs_ifork *ifp; trace_xfs_attr_sf_to_leaf(args); @@ -802,8 +823,6 @@ xfs_attr_shortform_to_leaf( memset((char *)&nargs, 0, sizeof(nargs)); nargs.dp = dp; nargs.geo = args->geo; - nargs.firstblock = args->firstblock; - nargs.dfops = args->dfops; nargs.total = args->total; nargs.whichfork = XFS_ATTR_FORK; nargs.trans = args->trans; @@ -1006,8 +1025,6 @@ xfs_attr3_leaf_to_shortform( memset((char *)&nargs, 0, sizeof(nargs)); nargs.geo = args->geo; nargs.dp = dp; - nargs.firstblock = args->firstblock; - nargs.dfops = args->dfops; nargs.total = args->total; nargs.whichfork = XFS_ATTR_FORK; nargs.trans = args->trans; @@ -1570,17 +1587,10 @@ xfs_attr3_leaf_rebalance( */ swap = 0; if (xfs_attr3_leaf_order(blk1->bp, &ichdr1, blk2->bp, &ichdr2)) { - struct xfs_da_state_blk *tmp_blk; - struct xfs_attr3_icleaf_hdr tmp_ichdr; - - tmp_blk = blk1; - blk1 = blk2; - blk2 = tmp_blk; + swap(blk1, blk2); - /* struct copies to swap them rather than reconverting */ - tmp_ichdr = ichdr1; - ichdr1 = ichdr2; - ichdr2 = tmp_ichdr; + /* swap structures rather than reconverting them */ + swap(ichdr1, ichdr2); leaf1 = blk1->bp->b_addr; leaf2 = blk2->bp->b_addr; |