| Date | Tue, 07 Aug 2012 04:28:29 +0100 | From | Ben Hutchings <> | Subject | [ 34/70] dm thin: reduce endio_hook pool size |
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3.2-stable review patch. If anyone has any objections, please let me know.
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From: Alasdair G Kergon <agk@redhat.com>
commit 7768ed33ccdc02801c4483fc5682dc66ace14aea upstream.
Reduce the slab size used for the dm_thin_endio_hook mempool.
Allocation has been seen to fail on machines with smaller amounts of memory due to fragmentation.
lvm: page allocation failure. order:5, mode:0xd0 device-mapper: table: 253:38: thin-pool: Error creating pool's endio_hook mempool
Signed-off-by: Alasdair G Kergon <agk@redhat.com> Signed-off-by: Ben Hutchings <ben@decadent.org.uk> --- drivers/md/dm-thin.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c index 68694da..18f87b0 100644 --- a/drivers/md/dm-thin.c +++ b/drivers/md/dm-thin.c @@ -19,7 +19,7 @@ /* * Tunable constants */ -#define ENDIO_HOOK_POOL_SIZE 10240 +#define ENDIO_HOOK_POOL_SIZE 1024 #define DEFERRED_SET_SIZE 64 #define MAPPING_POOL_SIZE 1024 #define PRISON_CELLS 1024
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