Mingming Cao 3f31fddfa2 jbd: fix race between free buffer and commit transaction ... journal_try_to_free_buffers() could race with jbd commit transaction when the later is holding the buffer reference while waiting for the data buffer to flush to disk. If the caller of journal_try_to_free_buffers() request tries hard to release the buffers, it will treat the failure as error and return back to the caller. We have seen the directo IO failed due to this race. Some of the caller of releasepage() also expecting the buffer to be dropped when passed with GFP_KERNEL mask to the releasepage()->journal_try_to_free_buffers(). With this patch, if the caller is passing the __GFP_WAIT and __GFP_FS to indicating this call could wait, in case of try_to_free_buffers() failed, let's waiting for journal_commit_transaction() to finish commit the current committing transaction, then try to free those buffers again. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Mingming Cao <cmm@us.ibm.com> Reviewed-by: Badari Pulavarty <pbadari@us.ibm.com> Acked-by: Jan Kara <jack@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2008-07-25 10:53:32 -07:00
..
allocpercpu.c	Merge commit 'v2.6.26-rc9' into cpus4096	2008-07-06 14:23:39 +02:00
backing-dev.c	mm: bdi: fix race in bdi_class device creation	2008-05-20 13:31:53 -07:00
bootmem.c	bootmem: replace node_boot_start in struct bootmem_data	2008-07-24 10:47:20 -07:00
bounce.c	block: Initial support for data-less (or empty) barrier support	2007-10-16 11:03:56 +02:00
dmapool.c	dmapool: enable debugging for CONFIG_SLUB_DEBUG_ON too	2008-04-28 08:58:20 -07:00
fadvise.c	xip: support non-struct page backed memory	2008-04-28 08:58:23 -07:00
filemap_xip.c	xip: support non-struct page backed memory	2008-04-28 08:58:23 -07:00
filemap.c	jbd: fix race between free buffer and commit transaction	2008-07-25 10:53:32 -07:00
fremap.c	mm: fix various kernel-doc comments	2008-03-19 18:53:35 -07:00
highmem.c	highmem: Export totalhigh_pages.	2008-07-19 22:39:46 -07:00
hugetlb.c	hugetlb: quota is not freed for unused reserved private huge pages	2008-07-24 10:47:19 -07:00
internal.h	mm: export prep_compound_page to mm	2008-07-24 10:47:17 -07:00
Kconfig	mm: make CONFIG_MIGRATION available w/o CONFIG_NUMA	2008-07-24 10:47:21 -07:00
maccess.c	kgdb: fix optional arch functions and probe_kernel_*	2008-04-17 20:05:39 +02:00
madvise.c	xip: support non-struct page backed memory	2008-04-28 08:58:23 -07:00
Makefile	mm: remove mm_init compilation dependency on CONFIG_DEBUG_MEMORY_INIT	2008-07-24 10:47:17 -07:00
memcontrol.c	memcg: simple stats for memory resource controller	2008-05-01 08:04:02 -07:00
memory_hotplug.c	memory-hotplug: add sysfs removable attribute for hotplug memory remove	2008-07-24 10:47:21 -07:00
memory.c	hugetlb: introduce pud_huge	2008-07-24 10:47:18 -07:00
mempolicy.c	hugetlb: modular state for hugetlb page size	2008-07-24 10:47:17 -07:00
mempool.c	spelling fixes: mm/	2007-10-20 01:27:18 +02:00
migrate.c	mm: make CONFIG_MIGRATION available w/o CONFIG_NUMA	2008-07-24 10:47:21 -07:00
mincore.c	mm: remove nopage	2008-04-28 08:58:18 -07:00
mlock.c	do not limit locked memory when RLIMIT_MEMLOCK is RLIM_INFINITY	2007-07-16 09:05:37 -07:00
mm_init.c	mm: create /sys/kernel/mm	2008-07-24 10:47:17 -07:00
mmap.c	hugetlb: modular state for hugetlb page size	2008-07-24 10:47:17 -07:00
mmzone.c	mm: filter based on a nodemask as well as a gfp_mask	2008-04-28 08:58:19 -07:00
mprotect.c	mm: record MAP_NORESERVE status on vmas and fix small page mprotect reservations	2008-07-24 10:47:16 -07:00
mremap.c	sparse pointer use of zero as null	2007-10-18 14:37:31 -07:00
msync.c	Detach sched.h from mm.h	2007-05-21 09:18:19 -07:00
nommu.c	nommu: Correct kobjsize() page validity checks.	2008-06-12 07:56:17 -07:00
oom_kill.c	oom_kill: remove unused parameter in badness()	2008-04-28 08:58:26 -07:00
page_alloc.c	memory hotplug: small fixes to bootmem freeing for memory hotremove	2008-07-24 10:47:21 -07:00
page_io.c	mm: fix PageUptodate data race	2008-02-05 09:44:19 -08:00
page_isolation.c	memory hotremove: unset migrate type "ISOLATE" after removal	2007-11-14 18:45:38 -08:00
page-writeback.c	Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4	2008-07-15 08:36:38 -07:00
pagewalk.c	pagemap: pass mm into pagewalkers	2008-06-12 18:05:41 -07:00
pdflush.c	pdflush: use time_after() instead of open-coding it	2008-07-25 10:53:28 -07:00
prio_tree.c	spelling fixes: mm/	2007-10-20 01:27:18 +02:00
quicklist.c	quicklists: Only consider memory that can be used with GFP_KERNEL	2008-01-14 08:52:22 -08:00
readahead.c	mm: bdi: export BDI attributes in sysfs	2008-04-30 08:29:49 -07:00
rmap.c	mm: remove nopage	2008-04-28 08:58:18 -07:00
shmem_acl.c
shmem.c	tmpfs: support aio	2008-07-24 10:47:16 -07:00
slab.c	Merge branch 'generic-ipi' into generic-ipi-for-linus	2008-07-15 21:55:59 +02:00
slob.c	slob: record page flag overlays explicitly	2008-07-24 10:47:15 -07:00
slub.c	slub: record page flag overlays explicitly	2008-07-24 10:47:15 -07:00
sparse-vmemmap.c	Christoph has moved	2008-07-04 10:40:04 -07:00
sparse.c	memory hotplug: allocate usemap on the section with pgdat	2008-07-24 10:47:21 -07:00
swap_state.c	mm: bdi: add separate writeback accounting capability	2008-04-30 08:29:50 -07:00
swap.c	mm: remove initialization of static per-cpu variables	2008-07-24 10:47:21 -07:00
swapfile.c	mm: fix ever-decreasing swap priority	2008-07-24 10:47:21 -07:00
thrash.c	Bug in mm/thrash.c function grab_swap_token()	2007-05-11 08:29:32 -07:00
tiny-shmem.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	2008-03-25 08:57:47 -07:00
truncate.c	fix invalidate_inode_pages2_range() to not clear ret	2008-04-28 08:58:18 -07:00
util.c	fix mm/util.c:krealloc()	2007-11-14 18:45:41 -08:00
vmalloc.c	vmallocinfo: add NUMA information	2008-07-24 10:47:17 -07:00
vmscan.c	mm: fix incorrect variable type in do_try_to_free_pages()	2008-06-12 18:05:39 -07:00
vmstat.c	mm/vmstat.c: proper externs	2008-07-24 10:47:14 -07:00