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a72986c562
linux/drivers/md
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Mikulas Patocka a72986c562 dm raid1: keep retrying alloc if mempool_alloc failed 
If the code can't handle allocation failures, use __GFP_NOFAIL so that
in case of memory pressure the allocator will retry indefinitely and
won't return NULL which would cause a crash in the function.

This is still not a correct fix, it may cause a classic deadlock when
memory manager waits for I/O being done and I/O waits for some free memory.
I/O code shouldn't allocate any memory. But in this case it probably
doesn't matter much in practice, people usually do not swap on RAID.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2009-06-22 10:12:13 +01:00
..
raid6test md/raid6: move raid6 data processing to raid6_pq.ko 2009-03-31 15:09:39 +11:00
.gitignore
bitmap.c Merge branch 'for-2.6.31' of git://git.kernel.dk/linux-2.6-block 2009-06-11 11:10:35 -07:00
bitmap.h md: move headers out of include/linux/raid/ 2009-03-31 14:27:03 +11:00
dm-bio-record.h dm: preserve bi_io_vec when resubmitting bios 2009-04-02 19:55:23 +01:00
dm-crypt.c dm crypt: use kzfree 2009-04-02 19:55:28 +01:00
dm-delay.c block: move bio list helpers into bio.h 2009-04-15 08:28:09 +02:00
dm-exception-store.c block: Do away with the notion of hardsect_size 2009-05-22 23:22:54 +02:00
dm-exception-store.h block: rename CONFIG_LBD to CONFIG_LBDAF 2009-06-19 08:08:50 +02:00
dm-io.c dm io: make sync_io uninterruptible 2009-04-02 19:55:24 +01:00
dm-ioctl.c Driver Core: misc: add nodename support for misc devices. 2009-06-15 21:30:25 -07:00
dm-kcopyd.c dm kcopyd: fix callback race 2009-04-09 00:27:17 +01:00
dm-linear.c dm: remove limited barrier support 2009-04-09 00:27:13 +01:00
dm-log.c block: Do away with the notion of hardsect_size 2009-05-22 23:22:54 +02:00
dm-mpath.c dm mpath: call activate fn for each path in pg_init 2009-06-22 10:12:12 +01:00
dm-mpath.h
dm-path-selector.c dm: path selector use module refcount directly 2009-04-02 19:55:27 +01:00
dm-path-selector.h
dm-raid1.c block: move bio list helpers into bio.h 2009-04-15 08:28:09 +02:00
dm-region-hash.c dm raid1: keep retrying alloc if mempool_alloc failed 2009-06-22 10:12:13 +01:00
dm-round-robin.c
dm-snap-persistent.c block: Do away with the notion of hardsect_size 2009-05-22 23:22:54 +02:00
dm-snap-transient.c dm snapshot: move status to exception store 2009-04-02 19:55:35 +01:00
dm-snap.c block: move bio list helpers into bio.h 2009-04-15 08:28:09 +02:00
dm-stripe.c
dm-sysfs.c
dm-table.c Revert "block: Fix bounce limit setting in DM" 2009-06-09 06:22:57 +02:00
dm-target.c dm target: remove struct tt_internal 2009-04-02 19:55:28 +01:00
dm-uevent.c
dm-uevent.h
dm-zero.c
dm.c dm: sysfs skip output when device is being destroyed 2009-06-22 10:12:11 +01:00
dm.h dm: remove limited barrier support 2009-04-09 00:27:13 +01:00
faulty.c md: Move check for bitmap presence to personality code. 2009-06-18 08:49:23 +10:00
Kconfig md: remove CONFIG_MD_RAID_RESHAPE config option. 2009-03-31 15:27:05 +11:00
linear.c md/linear: use call_rcu to free obsolete 'conf' structures. 2009-06-18 08:49:42 +10:00
linear.h md/linear: use call_rcu to free obsolete 'conf' structures. 2009-06-18 08:49:42 +10:00
Makefile md/raid6: move raid6 data processing to raid6_pq.ko 2009-03-31 15:09:39 +11:00
md.c md: Move check for bitmap presence to personality code. 2009-06-18 08:49:23 +10:00
md.h md: Move check for bitmap presence to personality code. 2009-06-18 08:49:23 +10:00
mktables.c md/raid6: move raid6 data processing to raid6_pq.ko 2009-03-31 15:09:39 +11:00
multipath.c md: Move check for bitmap presence to personality code. 2009-06-18 08:49:23 +10:00
multipath.h md: remove mddev_to_conf "helper" macro 2009-06-16 16:54:21 +10:00
raid0.c md: Move check for bitmap presence to personality code. 2009-06-18 08:49:23 +10:00
raid0.h md: remove mddev_to_conf "helper" macro 2009-06-16 16:54:21 +10:00
raid1.c md: Push down reconstruction log message to personality code. 2009-06-18 08:48:06 +10:00
raid1.h md: remove mddev_to_conf "helper" macro 2009-06-16 16:54:21 +10:00
raid5.c md/raid5: correctly update sync_completed when we reach max_resync 2009-06-18 09:14:12 +10:00
raid5.h md: convert conf->chunk_size and conf->prev_chunk to sectors. 2009-06-18 08:45:55 +10:00
raid6algos.c md/raid6: move raid6 data processing to raid6_pq.ko 2009-03-31 15:09:39 +11:00
raid6altivec.uc md/raid6: move raid6 data processing to raid6_pq.ko 2009-03-31 15:09:39 +11:00
raid6int.uc md/raid6: move raid6 data processing to raid6_pq.ko 2009-03-31 15:09:39 +11:00
raid6mmx.c md/raid6: move raid6 data processing to raid6_pq.ko 2009-03-31 15:09:39 +11:00
raid6recov.c md/raid6: move raid6 data processing to raid6_pq.ko 2009-03-31 15:09:39 +11:00
raid6sse1.c md/raid6: move raid6 data processing to raid6_pq.ko 2009-03-31 15:09:39 +11:00
raid6sse2.c md/raid6: move raid6 data processing to raid6_pq.ko 2009-03-31 15:09:39 +11:00
raid6x86.h md: fix typo in FSF address 2009-03-31 14:57:37 +11:00
raid10.c md: Push down reconstruction log message to personality code. 2009-06-18 08:48:06 +10:00
raid10.h md: remove mddev_to_conf "helper" macro 2009-06-16 16:54:21 +10:00
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