dm thin: reduce endio_hook pool size · 7768ed33cc - Gogs

dm thin: reduce endio_hook pool size

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

Cc: stable@vger.kernel.org
Signed-off-by: Alasdair G Kergon <agk@redhat.com>

Alasdair G Kergon 13 years ago

parent

bdc0077af5

commit

7768ed33cc

1 changed files with 1 additions and 1 deletions

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							+ 1
							
							- 1
						
drivers/md/dm-thin.c
							 
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				@@ -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