diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2017-09-06 12:19:23 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-09-06 12:19:23 -0700 |
commit | 5791577963426c5a2db51fff57e9fcd72061e2c3 (patch) | |
tree | 1f09165197317f1761dfba7189b01c3e5aae3e70 /fs/xfs/xfs_inode_item.c | |
parent | 77d0ab600af4bf5152bc98d0ac1edbc34c1e5fdf (diff) | |
parent | 6c370590cfe0c36bcd62d548148aa65c984540b7 (diff) |
Merge tag 'xfs-4.14-merge-7' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull XFS updates from Darrick Wong:
"Here are the changes for xfs for 4.14. Most of these are cleanups and
fixes for bad behavior, as we're mostly focusing on improving
reliablity this cycle (read: there's potentially a lot of stuff on the
horizon for 4.15 so better to spend a few weeks killing other bugs
now).
Summary:
- Write unmount record for a ro mount to avoid unnecessary log replay
- Clean up orphaned inodes when mounting fs readonly
- Resubmit inode log items when buffer writeback fails to avoid
umount hang
- Fix log recovery corruption problems when log headers wrap around
the end
- Avoid infinite loop searching for free inodes when inode counters
are wrong
- Evict inodes involved with log redo so that we don't leak them
later
- Fix a potential race between reclaim and inode cluster freeing
- Refactor the inode joining code w.r.t. transaction rolling &
deferred ops
- Fix a bug where the log doesn't properly deal with dirty buffers
that are about to become ordered buffers
- Fix the extent swap code to deal with making dirty buffers ordered
properly
- Consolidate page fault handlers
- Refactor the incore extent manipulation functions to use the iext
abstractions instead of directly modifying with extent data
- Disable crashy chattr +/-x until we fix it
- Don't allow us to set S_DAX for v2 inodes
- Various cleanups
- Clarify some documentation
- Fix a problem where fsync and a log commit race to send the disk a
flush command, resulting in a small window where power fail data
loss could occur
- Simplify some rmap operations in the fcollapse code
- Fix some use-after-free problems in async writeback"
* tag 'xfs-4.14-merge-7' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: (44 commits)
xfs: use kmem_free to free return value of kmem_zalloc
xfs: open code end_buffer_async_write in xfs_finish_page_writeback
xfs: don't set v3 xflags for v2 inodes
xfs: fix compiler warnings
fsmap: fix documentation of FMR_OF_LAST
xfs: simplify the rmap code in xfs_bmse_merge
xfs: remove unused flags arg from xfs_file_iomap_begin_delay
xfs: fix incorrect log_flushed on fsync
xfs: disable per-inode DAX flag
xfs: replace xfs_qm_get_rtblks with a direct call to xfs_bmap_count_leaves
xfs: rewrite xfs_bmap_count_leaves using xfs_iext_get_extent
xfs: use xfs_iext_*_extent helpers in xfs_bmap_split_extent_at
xfs: use xfs_iext_*_extent helpers in xfs_bmap_shift_extents
xfs: move some code around inside xfs_bmap_shift_extents
xfs: use xfs_iext_get_extent in xfs_bmap_first_unused
xfs: switch xfs_bmap_local_to_extents to use xfs_iext_insert
xfs: add a xfs_iext_update_extent helper
xfs: consolidate the various page fault handlers
iomap: return VM_FAULT_* codes from iomap_page_mkwrite
xfs: relog dirty buffers during swapext bmbt owner change
...
Diffstat (limited to 'fs/xfs/xfs_inode_item.c')
-rw-r--r-- | fs/xfs/xfs_inode_item.c | 47 |
1 files changed, 43 insertions, 4 deletions
diff --git a/fs/xfs/xfs_inode_item.c b/fs/xfs/xfs_inode_item.c index 013cc78d7daf..6d0f74ec31e8 100644 --- a/fs/xfs/xfs_inode_item.c +++ b/fs/xfs/xfs_inode_item.c @@ -27,6 +27,7 @@ #include "xfs_error.h" #include "xfs_trace.h" #include "xfs_trans_priv.h" +#include "xfs_buf_item.h" #include "xfs_log.h" @@ -475,6 +476,23 @@ xfs_inode_item_unpin( wake_up_bit(&ip->i_flags, __XFS_IPINNED_BIT); } +/* + * Callback used to mark a buffer with XFS_LI_FAILED when items in the buffer + * have been failed during writeback + * + * This informs the AIL that the inode is already flush locked on the next push, + * and acquires a hold on the buffer to ensure that it isn't reclaimed before + * dirty data makes it to disk. + */ +STATIC void +xfs_inode_item_error( + struct xfs_log_item *lip, + struct xfs_buf *bp) +{ + ASSERT(xfs_isiflocked(INODE_ITEM(lip)->ili_inode)); + xfs_set_li_failed(lip, bp); +} + STATIC uint xfs_inode_item_push( struct xfs_log_item *lip, @@ -484,13 +502,28 @@ xfs_inode_item_push( { struct xfs_inode_log_item *iip = INODE_ITEM(lip); struct xfs_inode *ip = iip->ili_inode; - struct xfs_buf *bp = NULL; + struct xfs_buf *bp = lip->li_buf; uint rval = XFS_ITEM_SUCCESS; int error; if (xfs_ipincount(ip) > 0) return XFS_ITEM_PINNED; + /* + * The buffer containing this item failed to be written back + * previously. Resubmit the buffer for IO. + */ + if (lip->li_flags & XFS_LI_FAILED) { + if (!xfs_buf_trylock(bp)) + return XFS_ITEM_LOCKED; + + if (!xfs_buf_resubmit_failed_buffers(bp, lip, buffer_list)) + rval = XFS_ITEM_FLUSHING; + + xfs_buf_unlock(bp); + return rval; + } + if (!xfs_ilock_nowait(ip, XFS_ILOCK_SHARED)) return XFS_ITEM_LOCKED; @@ -622,7 +655,8 @@ static const struct xfs_item_ops xfs_inode_item_ops = { .iop_unlock = xfs_inode_item_unlock, .iop_committed = xfs_inode_item_committed, .iop_push = xfs_inode_item_push, - .iop_committing = xfs_inode_item_committing + .iop_committing = xfs_inode_item_committing, + .iop_error = xfs_inode_item_error }; @@ -710,7 +744,8 @@ xfs_iflush_done( * the AIL lock. */ iip = INODE_ITEM(blip); - if (iip->ili_logged && blip->li_lsn == iip->ili_flush_lsn) + if ((iip->ili_logged && blip->li_lsn == iip->ili_flush_lsn) || + lip->li_flags & XFS_LI_FAILED) need_ail++; blip = next; @@ -718,7 +753,8 @@ xfs_iflush_done( /* make sure we capture the state of the initial inode. */ iip = INODE_ITEM(lip); - if (iip->ili_logged && lip->li_lsn == iip->ili_flush_lsn) + if ((iip->ili_logged && lip->li_lsn == iip->ili_flush_lsn) || + lip->li_flags & XFS_LI_FAILED) need_ail++; /* @@ -739,6 +775,9 @@ xfs_iflush_done( if (INODE_ITEM(blip)->ili_logged && blip->li_lsn == INODE_ITEM(blip)->ili_flush_lsn) mlip_changed |= xfs_ail_delete_one(ailp, blip); + else { + xfs_clear_li_failed(blip); + } } if (mlip_changed) { |