tmp_suning_uos_patched/mm
Dmitry Monakhov 865ffef379 fs: fix fsync() error reporting
There are two convenient ways to report errors to userspace

1) retun error to original syscall for example write(2)
2) mark mapping with error flag and return it on later fsync(2)

Second one is broken if (mapping->nrpages == 0) This is real-life
situation because after error pages are likey to be truncated or
invalidated.

We have to return an error regardless to number of pages in the mapping.

#Original testcase: git@github.com:dmonakhov/xfstests.git
MOUNT_OPTIONS="-b1024"
./check shared/305

Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org>
Reviewed-by: Jan Kara <jack@suse.cz>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-04-29 15:54:38 -07:00
..
backing-dev.c
balloon_compaction.c
bootmem.c
bounce.c mm: make snapshotting pages for stable writes a per-bio operation 2013-04-29 15:54:33 -07:00
cleancache.c
compaction.c
debug-pagealloc.c
dmapool.c
fadvise.c
failslab.c
filemap_xip.c
filemap.c fs: fix fsync() error reporting 2013-04-29 15:54:38 -07:00
fremap.c
frontswap.c
highmem.c
huge_memory.c mm: thp: add split tail pages to shrink page list in page reclaim 2013-04-29 15:54:38 -07:00
hugetlb_cgroup.c
hugetlb.c mm, hugetlb: include hugepages in meminfo 2013-04-29 15:54:35 -07:00
hwpoison-inject.c
init-mm.c
internal.h
interval_tree.c
Kconfig
Kconfig.debug
kmemcheck.c
kmemleak-test.c
kmemleak.c
ksm.c
maccess.c
madvise.c mm: madvise: complete input validation before taking lock 2013-04-29 15:54:37 -07:00
Makefile memcg: add memory.pressure_level events 2013-04-29 15:54:38 -07:00
memblock.c memblock: fix missing comment of memblock_insert_region() 2013-04-29 15:54:38 -07:00
memcontrol.c memcg: add memory.pressure_level events 2013-04-29 15:54:38 -07:00
memory_hotplug.c mm, hotplug: avoid compiling memory hotremove functions when disabled 2013-04-29 15:54:37 -07:00
memory-failure.c HWPOISON: check dirty flag to match against clean page 2013-04-29 15:54:28 -07:00
memory.c THP: fix comment about memory barrier 2013-04-29 15:54:37 -07:00
mempolicy.c
mempool.c
migrate.c mm: rewrite the comment over migrate_pages() more comprehensibly 2013-04-29 15:54:37 -07:00
mincore.c
mlock.c
mm_init.c
mmap.c mm/mmap: check for RLIMIT_AS before unmapping 2013-04-29 15:54:38 -07:00
mmu_context.c
mmu_notifier.c
mmzone.c
mprotect.c
mremap.c
msync.c
nobootmem.c
nommu.c mm: replace hardcoded 3% with admin_reserve_pages knob 2013-04-29 15:54:36 -07:00
oom_kill.c
page_alloc.c page_alloc: make setup_nr_node_ids() usable for arch init code 2013-04-29 15:54:36 -07:00
page_cgroup.c
page_io.c mm: allow for outstanding swap writeback accounting 2013-04-29 15:54:38 -07:00
page_isolation.c
page-writeback.c mm: make snapshotting pages for stable writes a per-bio operation 2013-04-29 15:54:33 -07:00
pagewalk.c
percpu-km.c
percpu-vm.c
percpu.c
pgtable-generic.c
process_vm_access.c
quicklist.c
readahead.c
rmap.c rmap: recompute pgoff for unmapping huge page 2013-04-29 15:54:28 -07:00
shmem.c mm/shmem.c: remove an ifdef 2013-04-29 15:54:28 -07:00
slab_common.c
slab.c
slab.h
slob.c
slub.c mm/slub.c: use register_hotmemory_notifier() 2013-04-29 15:54:36 -07:00
sparse-vmemmap.c sparse-vmemmap: specify vmemmap population range in bytes 2013-04-29 15:54:35 -07:00
sparse.c mm, hotplug: avoid compiling memory hotremove functions when disabled 2013-04-29 15:54:37 -07:00
swap_state.c mm: thp: add split tail pages to shrink page list in page reclaim 2013-04-29 15:54:38 -07:00
swap.c mm: thp: add split tail pages to shrink page list in page reclaim 2013-04-29 15:54:38 -07:00
swapfile.c
truncate.c
util.c
vmalloc.c kexec, vmalloc: export additional vmalloc layer information 2013-04-29 15:54:34 -07:00
vmpressure.c memcg: add memory.pressure_level events 2013-04-29 15:54:38 -07:00
vmscan.c mm: thp: add split tail pages to shrink page list in page reclaim 2013-04-29 15:54:38 -07:00
vmstat.c mm/vmstat: add note on safety of drain_zonestat 2013-04-29 15:54:38 -07:00