| Date | Wed, 10 Dec 2008 21:49:19 +0300 | From | Vladislav Bolkhovitin <> | Subject | [PATCH][RFC 13/23]: Export of alloc_io_context() function |
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This patch exports alloc_io_context() function. For performance reasons SCST queues commands using a pool of IO threads. It is considerably better for performance (>30% increase on sequential reads) if threads in a pool have the same IO context. Since SCST can be built as a module, it needs alloc_io_context() function exported.
Signed-off-by: Vladislav Bolkhovitin <vst@vlnb.net> --- block/blk-ioc.c | 1 + 1 file changed, 1 insertion(+)
diff -upkr linux-2.6.27.2/block/blk-ioc.c linux-2.6.27.2/block/blk-ioc.c --- linux-2.6.27.2/block/blk-ioc.c 2008-10-10 02:13:53.000000000 +0400 +++ linux-2.6.27.2/block/blk-ioc.c 2008-11-25 21:27:01.000000000 +0300 @@ -105,6 +105,7 @@ struct io_context *alloc_io_context(gfp_ return ret; } +EXPORT_SYMBOL(alloc_io_context); /* * If the current task has no IO context then create one and initialise it.
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