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70c57dcd60
linux/fs/xfs
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Darrick J. Wong 70c57dcd60 xfs: skip CoW writes past EOF when writeback races with truncate 
Every so often we blow the ASSERT(type != XFS_IO_COW) in xfs_map_blocks
when running fsstress, as we do in generic/269.  The cause of this is
writeback racing with truncate -- writeback doesn't take the iolock, so
truncate can sneak in to decrease i_size and truncate page cache while
writeback is gathering buffer heads to schedule writeout.

If we hit this race on a block that has a CoW mapping, we'll get a valid
imap from the CoW fork but the reduced i_size trims the mapping to zero
length (which makes it invalid), so we call xfs_map_blocks to try again.
This doesn't do much anyway, since any mapping we get out of that will
also be invalid, so we might as well skip the assert and just stop.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
2018-01-29 07:27:23 -08:00
..
libxfs xfs: refactor accounting updates out of xfs_bmap_btalloc 2018-01-29 07:27:23 -08:00
scrub xfs: make tracepoint inode number format consistent 2018-01-29 07:27:22 -08:00
Kconfig xfs: create an ioctl to scrub AG metadata 2017-10-26 15:38:23 -07:00
kmem.c mm, vmalloc: use __GFP_HIGHMEM implicitly 2017-05-08 17:15:13 -07:00
kmem.h slab, slub, slob: add slab_flags_t 2017-11-15 18:21:01 -08:00
Makefile xfs: use a b+tree for the in-core extent list 2017-11-06 11:53:41 -08:00
mrlock.h
xfs_acl.c xfs: don't change inode mode if ACL update fails 2017-10-11 10:21:06 -07:00
xfs_acl.h xfs: Don't clear SGID when inheriting ACLs 2017-06-27 18:23:21 -07:00
xfs_aops.c xfs: skip CoW writes past EOF when writeback races with truncate 2018-01-29 07:27:23 -08:00
xfs_aops.h xfs: perform dax_device lookup at mount 2017-08-31 09:31:47 -07:00
xfs_attr_inactive.c xfs: fail if xattr inactivation hits a hole 2017-10-26 15:38:22 -07:00
xfs_attr_list.c xfs: remove u_int* type usage 2017-11-09 15:50:29 -08:00
xfs_attr.h xfs: scrub extended attributes 2017-10-26 15:38:26 -07:00
xfs_bmap_item.c xfs: log recovery should replay deferred ops in order 2017-11-27 09:34:08 -08:00
xfs_bmap_item.h xfs: log recovery should replay deferred ops in order 2017-11-27 09:34:08 -08:00
xfs_bmap_util.c xfs: remove support for inlining data/extents into the inode fork 2017-11-06 11:53:40 -08:00
xfs_bmap_util.h xfs: simplify the xfs_getbmap interface 2017-10-26 15:38:20 -07:00
xfs_buf_item.c Use list_head infra-structure for buffer's log items list 2018-01-29 07:27:22 -08:00
xfs_buf_item.h Use list_head infra-structure for buffer's log items list 2018-01-29 07:27:22 -08:00
xfs_buf.c Use list_head infra-structure for buffer's log items list 2018-01-29 07:27:22 -08:00
xfs_buf.h Use list_head infra-structure for buffer's log items list 2018-01-29 07:27:22 -08:00
xfs_dir2_readdir.c xfs: directory scrubber must walk through data block to offset 2018-01-17 21:00:46 -08:00
xfs_discard.c xfs: remove double-underscore integer types 2017-06-19 14:11:33 -07:00
xfs_discard.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
xfs_dquot_item.c Use list_head infra-structure for buffer's log items list 2018-01-29 07:27:22 -08:00
xfs_dquot_item.h
xfs_dquot.c xfs: standardize quota verification function outputs 2018-01-08 10:54:47 -08:00
xfs_dquot.h
xfs_error.c xfs: refactor inode verifier corruption error printing 2018-01-29 07:27:22 -08:00
xfs_error.h xfs: refactor inode verifier corruption error printing 2018-01-29 07:27:22 -08:00
xfs_export.c
xfs_export.h
xfs_extent_busy.c
xfs_extent_busy.h
xfs_extfree_item.c xfs: always honor OWN_UNKNOWN rmap removal requests 2017-12-21 08:48:38 -08:00
xfs_extfree_item.h
xfs_file.c libnvdimm for 4.15 2017-11-17 09:51:57 -08:00
xfs_filestream.c
xfs_filestream.h
xfs_fsmap.c xfs: move two more RT specific functions into CONFIG_XFS_RT 2017-10-16 12:26:50 -07:00
xfs_fsmap.h xfs: implement the GETFSMAP ioctl 2017-04-03 15:18:17 -07:00
xfs_fsops.c xfs: use %px for data pointers when debugging 2018-01-12 14:09:08 -08:00
xfs_fsops.h xfs: hoist xfs_fs_geometry to libxfs 2018-01-08 10:54:48 -08:00
xfs_globals.c xfs: define fatal assert build time tunable 2017-06-19 08:59:10 -07:00
xfs_icache.c xfs: preserve i_rdev when recycling a reclaimable inode 2018-01-29 07:27:23 -08:00
xfs_icache.h xfs: remove leftover CoW reservations when remounting ro 2017-12-21 08:47:32 -08:00
xfs_icreate_item.c
xfs_icreate_item.h
xfs_inode_item.c Use list_head infra-structure for buffer's log items list 2018-01-29 07:27:22 -08:00
xfs_inode_item.h xfs: remove inode log format typedef 2017-11-01 15:03:16 -07:00
xfs_inode.c xfs: refactor inode verifier corruption error printing 2018-01-29 07:27:22 -08:00
xfs_inode.h xfs: provide a centralized method for verifying inline fork data 2018-01-08 10:54:47 -08:00
xfs_ioctl32.c xfs: refactor the geometry structure filling function 2018-01-08 10:54:48 -08:00
xfs_ioctl32.h xfs: remove double-underscore integer types 2017-06-19 14:11:33 -07:00
xfs_ioctl.c xfs: refactor the geometry structure filling function 2018-01-08 10:54:48 -08:00
xfs_ioctl.h xfs: remove u_int* type usage 2017-11-09 15:50:29 -08:00
xfs_iomap.c xfs: fix s_maxbytes overflow problems 2018-01-02 10:16:32 -08:00
xfs_iomap.h xfs: update i_size after unwritten conversion in dio completion 2017-09-26 10:55:19 -07:00
xfs_iops.c xfs: truncate pagecache before writeback in xfs_setattr_size() 2017-11-03 09:45:56 -07:00
xfs_iops.h
xfs_itable.c xfs: remove if_rdev 2017-10-26 15:38:27 -07:00
xfs_itable.h xfs: create inode pointer verifiers 2017-10-26 15:38:23 -07:00
xfs_linux.h xfs: use %px for data pointers when debugging 2018-01-12 14:09:08 -08:00
xfs_log_cil.c xfs: Fix leak of discard bio 2017-08-04 13:43:36 -07:00
xfs_log_priv.h locking/atomics: COCCINELLE/treewide: Convert trivial ACCESS_ONCE() patterns to READ_ONCE()/WRITE_ONCE() 2017-10-25 11:01:08 +02:00
xfs_log_recover.c Split buffer's b_fspriv field 2018-01-29 07:27:22 -08:00
xfs_log.c Use list_head infra-structure for buffer's log items list 2018-01-29 07:27:22 -08:00
xfs_log.h xfs: remove double-underscore integer types 2017-06-19 14:11:33 -07:00
xfs_message.c xfs: define bug_on_assert debug mode sysfs tunable 2017-06-19 08:59:10 -07:00
xfs_message.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
xfs_mount.c xfs: destroy mutex pag_ici_reclaim_lock before free 2018-01-12 14:09:08 -08:00
xfs_mount.h xfs: convert drop_writes to use the errortag mechanism 2017-06-27 18:23:20 -07:00
xfs_mru_cache.c
xfs_mru_cache.h
xfs_ondisk.h xfs: Don't log uninitialised fields in inode structures 2017-10-11 10:21:06 -07:00
xfs_pnfs.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
xfs_pnfs.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
xfs_qm_bhv.c xfs: remove double-underscore integer types 2017-06-19 14:11:33 -07:00
xfs_qm_syscalls.c xfs: wait on new inodes during quotaoff dquot release 2017-04-28 08:11:08 -07:00
xfs_qm.c xfs: use %px for data pointers when debugging 2018-01-12 14:09:08 -08:00
xfs_qm.h
xfs_quota.h
xfs_quotaops.c VFS: Convert sb->s_flags & MS_RDONLY to sb_rdonly(sb) 2017-07-17 08:45:34 +01:00
xfs_refcount_item.c xfs: log recovery should replay deferred ops in order 2017-11-27 09:34:08 -08:00
xfs_refcount_item.h xfs: log recovery should replay deferred ops in order 2017-11-27 09:34:08 -08:00
xfs_reflink.c xfs: call xfs_qm_dqattach before performing reflink operations 2018-01-29 07:27:22 -08:00
xfs_reflink.h xfs: separate function to check if inode shares extents 2017-06-19 14:11:35 -07:00
xfs_rmap_item.c xfs: better log intent item refcount checking 2017-04-25 09:40:42 -07:00
xfs_rmap_item.h
xfs_rtalloc.c xfs: remove the ip argument to xfs_defer_finish 2017-09-01 10:55:30 -07:00
xfs_rtalloc.h xfs: cross-reference the realtime bitmap 2018-01-17 21:00:46 -08:00
xfs_stats.c xfs: remove double-underscore integer types 2017-06-19 14:11:33 -07:00
xfs_stats.h xfs: remove double-underscore integer types 2017-06-19 14:11:33 -07:00
xfs_super.c xfs: Show realtime device stats on statfs calls if realtime flags set 2018-01-08 10:41:33 -08:00
xfs_super.h Rename superblock flags (MS_xyz -> SB_xyz) 2017-11-27 13:05:09 -08:00
xfs_symlink.c xfs: remove "no-allocation" reservations for file creations 2017-12-08 17:51:05 -08:00
xfs_symlink.h xfs: allow reading of already-locked remote symbolic link 2017-06-20 10:45:22 -07:00
xfs_sysctl.c
xfs_sysctl.h xfs: define bug_on_assert debug mode sysfs tunable 2017-06-19 08:59:10 -07:00
xfs_sysfs.c xfs: replace log_badcrc_factor knob with error injection tag 2017-06-27 18:23:21 -07:00
xfs_sysfs.h
xfs_trace.c fs: xfs: remove duplicate includes 2017-12-08 17:51:05 -08:00
xfs_trace.h xfs: use %pS printk format for direct instruction addresses 2018-01-12 14:09:08 -08:00
xfs_trans_ail.c xfs: move error injection tags into their own file 2017-11-01 15:03:16 -07:00
xfs_trans_bmap.c xfs: try to avoid blowing out the transaction reservation when bunmaping a shared extent 2017-06-19 08:59:10 -07:00
xfs_trans_buf.c Split buffer's b_fspriv field 2018-01-29 07:27:22 -08:00
xfs_trans_dquot.c
xfs_trans_extfree.c
xfs_trans_inode.c xfs: refactor xfs_trans_roll 2017-09-01 10:55:30 -07:00
xfs_trans_priv.h xfs: Properly retry failed inode items in case of error during buffer writeback 2017-08-22 09:22:23 -07:00
xfs_trans_refcount.c
xfs_trans_rmap.c xfs: remove double-underscore integer types 2017-06-19 14:11:33 -07:00
xfs_trans.c xfs: trace log reservations at mount time 2018-01-08 10:54:47 -08:00
xfs_trans.h Use list_head infra-structure for buffer's log items list 2018-01-29 07:27:22 -08:00
xfs_xattr.c
xfs.h xfs: always define STATIC to static noinline 2017-11-06 11:53:58 -08:00