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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/xfs_symlink.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/xfs_symlink.c')
-rw-r--r-- | fs/xfs/xfs_symlink.c | 51 |
1 files changed, 11 insertions, 40 deletions
diff --git a/fs/xfs/xfs_symlink.c b/fs/xfs/xfs_symlink.c index 3783afcb68d2..a3e98c64b6e3 100644 --- a/fs/xfs/xfs_symlink.c +++ b/fs/xfs/xfs_symlink.c @@ -163,8 +163,6 @@ xfs_symlink( struct xfs_inode *ip = NULL; int error = 0; int pathlen; - struct xfs_defer_ops dfops; - xfs_fsblock_t first_block; bool unlock_dp_on_error = false; xfs_fileoff_t first_fsb; xfs_filblks_t fs_blocks; @@ -243,13 +241,6 @@ xfs_symlink( goto out_trans_cancel; /* - * Initialize the bmap freelist prior to calling either - * bmapi or the directory create code. - */ - xfs_defer_init(&dfops, &first_block); - tp->t_agfl_dfops = &dfops; - - /* * Allocate an inode for the symlink. */ error = xfs_dir_ialloc(&tp, dp, S_IFLNK | (mode & ~S_IFMT), 1, 0, @@ -290,10 +281,9 @@ xfs_symlink( nmaps = XFS_SYMLINK_MAPS; error = xfs_bmapi_write(tp, ip, first_fsb, fs_blocks, - XFS_BMAPI_METADATA, &first_block, resblks, - mval, &nmaps, &dfops); + XFS_BMAPI_METADATA, resblks, mval, &nmaps); if (error) - goto out_bmap_cancel; + goto out_trans_cancel; if (resblks) resblks -= fs_blocks; @@ -311,7 +301,7 @@ xfs_symlink( BTOBB(byte_cnt), 0); if (!bp) { error = -ENOMEM; - goto out_bmap_cancel; + goto out_trans_cancel; } bp->b_ops = &xfs_symlink_buf_ops; @@ -338,10 +328,9 @@ xfs_symlink( /* * Create the directory entry for the symlink. */ - error = xfs_dir_createname(tp, dp, link_name, ip->i_ino, - &first_block, &dfops, resblks); + error = xfs_dir_createname(tp, dp, link_name, ip->i_ino, resblks); if (error) - goto out_bmap_cancel; + goto out_trans_cancel; xfs_trans_ichgtime(tp, dp, XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG); xfs_trans_log_inode(tp, dp, XFS_ILOG_CORE); @@ -354,10 +343,6 @@ xfs_symlink( xfs_trans_set_sync(tp); } - error = xfs_defer_finish(&tp, &dfops); - if (error) - goto out_bmap_cancel; - error = xfs_trans_commit(tp); if (error) goto out_release_inode; @@ -369,8 +354,6 @@ xfs_symlink( *ipp = ip; return 0; -out_bmap_cancel: - xfs_defer_cancel(&dfops); out_trans_cancel: xfs_trans_cancel(tp); out_release_inode: @@ -381,7 +364,7 @@ out_release_inode: */ if (ip) { xfs_finish_inode_setup(ip); - IRELE(ip); + xfs_irele(ip); } xfs_qm_dqrele(udqp); @@ -403,8 +386,6 @@ xfs_inactive_symlink_rmt( xfs_buf_t *bp; int done; int error; - xfs_fsblock_t first_block; - struct xfs_defer_ops dfops; int i; xfs_mount_t *mp; xfs_bmbt_irec_t mval[XFS_SYMLINK_MAPS]; @@ -443,7 +424,6 @@ xfs_inactive_symlink_rmt( * Find the block(s) so we can inval and unmap them. */ done = 0; - xfs_defer_init(&dfops, &first_block); nmaps = ARRAY_SIZE(mval); error = xfs_bmapi_read(ip, 0, xfs_symlink_blocks(mp, size), mval, &nmaps, 0); @@ -458,28 +438,21 @@ xfs_inactive_symlink_rmt( XFS_FSB_TO_BB(mp, mval[i].br_blockcount), 0); if (!bp) { error = -ENOMEM; - goto error_bmap_cancel; + goto error_trans_cancel; } xfs_trans_binval(tp, bp); } /* * Unmap the dead block(s) to the dfops. */ - error = xfs_bunmapi(tp, ip, 0, size, 0, nmaps, - &first_block, &dfops, &done); + error = xfs_bunmapi(tp, ip, 0, size, 0, nmaps, &done); if (error) - goto error_bmap_cancel; + goto error_trans_cancel; ASSERT(done); - /* - * Commit the first transaction. This logs the EFI and the inode. - */ - xfs_defer_ijoin(&dfops, ip); - error = xfs_defer_finish(&tp, &dfops); - if (error) - goto error_bmap_cancel; /* - * Commit the transaction containing extent freeing and EFDs. + * Commit the transaction. This first logs the EFI and the inode, then + * rolls and commits the transaction that frees the extents. */ xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE); error = xfs_trans_commit(tp); @@ -498,8 +471,6 @@ xfs_inactive_symlink_rmt( xfs_iunlock(ip, XFS_ILOCK_EXCL); return 0; -error_bmap_cancel: - xfs_defer_cancel(&dfops); error_trans_cancel: xfs_trans_cancel(tp); error_unlock: |