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03f4e4b26c
linux/fs/xfs/libxfs
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Brian Foster 03f4e4b26c xfs: make deferred processing safe for embedded dfops 
xfs_defer_finish() has a couple quirks that are not safe with
respect to the upcoming internal dfops functionality. First,
xfs_defer_finish() attaches the passed in dfops structure to
->t_dfops and caches and restores the original value. Second, it
continues to use the initial dfops reference before and after the
transaction roll.

These behaviors assume that dop is an independent memory allocation
from the transaction itself, which may not always be true once
transactions begin to use an embedded dfops structure. In the latter
model, dfops processing creates a new xfs_defer_ops structure with
each transaction and the associated state is migrated across to the
new transaction.

Fix up xfs_defer_finish() to handle the possibility of the current
dfops changing after a transaction roll. Since ->t_dfops is used
unconditionally in this path, it is no longer necessary to
attach/restore ->t_dfops and pass it explicitly down to
xfs_defer_trans_roll(). Update dop in the latter function and the
caller to ensure that it always refers to the current dfops
structure.

Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Bill O'Donnell <billodo@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2018-07-26 10:15:12 -07:00
..
xfs_ag_resv.c xfs: fix fdblocks accounting w/ RMAPBT per-AG reservation 2018-06-24 12:00:12 -07:00
xfs_ag_resv.h libxfs: Fix a couple of sparse complaintis 2018-07-17 14:25:58 -07:00
xfs_ag.c xfs: factor the ag length extension code into libxfs 2018-05-15 18:12:51 -07:00
xfs_ag.h xfs: factor the ag length extension code into libxfs 2018-05-15 18:12:51 -07:00
xfs_alloc_btree.c xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_alloc_btree.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_alloc.c xfs: Initialize variables in xfs_alloc_get_rec before using them 2018-07-11 22:26:36 -07:00
xfs_alloc.h xfs: remove xfs_alloc_arg firstblock field 2018-07-11 22:26:30 -07:00
xfs_attr_leaf.c xfs: check leaf attribute block freemap in verifier 2018-07-23 09:08:00 -07:00
xfs_attr_leaf.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_attr_remote.c xfs: fix transaction leak on remote attr set/remove failure 2018-07-26 10:15:12 -07:00
xfs_attr_remote.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_attr_sf.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_attr.c xfs: remove xfs_defer_init() firstblock param 2018-07-11 22:26:33 -07:00
xfs_bit.c xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_bit.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_bmap_btree.c xfs: trivial xfs_btree_del_cursor cleanups 2018-07-23 09:08:00 -07:00
xfs_bmap_btree.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_bmap.c xfs: trivial xfs_btree_del_cursor cleanups 2018-07-23 09:08:00 -07:00
xfs_bmap.h xfs: remove xfs_bmalloca firstblock field 2018-07-11 22:26:28 -07:00
xfs_btree.c xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_btree.h xfs: remove xfs_btree_cur private firstblock field 2018-07-11 22:26:29 -07:00
xfs_cksum.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
xfs_da_btree.c xfs: remove xfs_bunmapi() firstblock param 2018-07-11 22:26:25 -07:00
xfs_da_btree.h xfs: use ->t_firstblock in xattr ops 2018-07-11 22:26:22 -07:00
xfs_da_format.c xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_da_format.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_defer.c xfs: make deferred processing safe for embedded dfops 2018-07-26 10:15:12 -07:00
xfs_defer.h xfs: remove xfs_defer_init() firstblock param 2018-07-11 22:26:33 -07:00
xfs_dir2_block.c xfs: clean up MIN/MAX 2018-06-08 10:07:52 -07:00
xfs_dir2_data.c xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_dir2_leaf.c xfs: clean up MIN/MAX 2018-06-08 10:07:52 -07:00
xfs_dir2_node.c xfs: use swap macro in xfs_dir2_leafn_rebalance 2018-07-17 14:25:57 -07:00
xfs_dir2_priv.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_dir2_sf.c xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_dir2.c xfs: remove xfs_bunmapi() firstblock param 2018-07-11 22:26:25 -07:00
xfs_dir2.h xfs: remove firstblock param from xfs dir ops 2018-07-11 22:26:21 -07:00
xfs_dquot_buf.c xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_errortag.h xfs: force summary counter recalc at next mount 2018-07-23 09:08:01 -07:00
xfs_format.h xfs: don't allow insert-range to shift extents past the maximum offset 2018-06-24 11:56:36 -07:00
xfs_fs.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_ialloc_btree.c xfs: trivial xfs_btree_del_cursor cleanups 2018-07-23 09:08:00 -07:00
xfs_ialloc_btree.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_ialloc.c xfs: trivial xfs_btree_del_cursor cleanups 2018-07-23 09:08:00 -07:00
xfs_ialloc.h xfs: remove dfops parameter from ifree call stack 2018-07-11 22:26:07 -07:00
xfs_iext_tree.c xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_inode_buf.c xfs: More robust inode extent count validation 2018-06-21 23:25:57 -07:00
xfs_inode_buf.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_inode_fork.c xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_inode_fork.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_log_format.h xfs: refactor unmount record write 2018-07-23 09:08:01 -07:00
xfs_log_recover.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_log_rlimit.c xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_quota_defs.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_refcount_btree.c xfs: remove xfs_alloc_arg firstblock field 2018-07-11 22:26:30 -07:00
xfs_refcount_btree.h xfs: remove unused btree cursor bc_private.a.dfops field 2018-07-11 22:26:17 -07:00
xfs_refcount.c xfs: clean up xfs_btree_del_cursor callers 2018-07-23 09:08:00 -07:00
xfs_refcount.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_rmap_btree.c xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_rmap_btree.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_rmap.c xfs: trivial xfs_btree_del_cursor cleanups 2018-07-23 09:08:00 -07:00
xfs_rmap.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_rtbitmap.c xfs: fix off-by-one error in xfs_rtalloc_query_range 2018-06-24 11:56:36 -07:00
xfs_sb.c xfs: detect and fix bad summary counts at mount 2018-07-23 09:08:01 -07:00
xfs_sb.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_shared.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_symlink_remote.c xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_trans_resv.c xfs: clean up MIN/MAX 2018-06-08 10:07:52 -07:00
xfs_trans_resv.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_trans_space.h xfs: convert to SPDX license tags 2018-06-06 14:17:53 -07:00
xfs_types.c xfs: move various type verifiers to common file 2018-06-08 10:07:51 -07:00
xfs_types.h xfs: move various type verifiers to common file 2018-06-08 10:07:51 -07:00