linux/include
Jeff Layton 87354e5de0 buffer: set errors in mapping at the time that the error occurs
I noticed on xfs that I could still sometimes get back an error on fsync
on a fd that was opened after the error condition had been cleared.

The problem is that the buffer code sets the write_io_error flag and
then later checks that flag to set the error in the mapping. That flag
perisists for quite a while however. If the file is later opened with
O_TRUNC, the buffers will then be invalidated and the mapping's error
set such that a subsequent fsync will return error. I think this is
incorrect, as there was no writeback between the open and fsync.

Add a new mark_buffer_write_io_error operation that sets the flag and
the error in the mapping at the same time. Replace all calls to
set_buffer_write_io_error with mark_buffer_write_io_error, and remove
the places that check this flag in order to set the error in the
mapping.

This sets the error in the mapping earlier, at the time that it's first
detected.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: Carlos Maiolino <cmaiolino@redhat.com>
2017-07-06 07:02:21 -04:00
..
acpi More ACPI updates for v4.12-rc1 2017-05-10 09:35:42 -07:00
asm-generic Kbuild UAPI header export updates for v4.12 2017-05-10 20:45:36 -07:00
clocksource
crypto Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security 2017-05-03 08:50:52 -07:00
drm mm, vmalloc: use __GFP_HIGHMEM implicitly 2017-05-08 17:15:13 -07:00
dt-bindings Sort of on the quieter side this time, which is probably due more 2017-05-10 13:38:18 -07:00
keys
kvm KVM: arm/arm64: Fix bug when registering redist iodevs 2017-05-18 11:18:12 +02:00
linux buffer: set errors in mapping at the time that the error occurs 2017-07-06 07:02:21 -04:00
math-emu
media
memory
misc
net ipv4: add reference counting to metrics 2017-05-26 14:57:07 -04:00
pcmcia
ras
rdma smc_diag.h: fix include from userland 2017-05-11 00:18:39 +09:00
rxrpc
scsi Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2017-05-12 11:44:13 -07:00
soc powerpc updates for 4.12 part 2 2017-05-12 10:04:09 -07:00
sound ASoC: Updates for v4.12 2017-05-02 08:25:25 +02:00
target target/user: PGR Support 2017-05-01 22:21:45 -07:00
trace Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux 2017-05-12 11:58:45 -07:00
uapi USB fixes for 4.12-rc2 2017-05-20 08:52:34 -07:00
video uapi: export all headers under uapi directories 2017-05-11 00:21:54 +09:00
xen xen: Implement EFI reset_system callback 2017-05-02 12:06:50 +02:00