Messages in this thread Patch in this message | | | From | Christoph Lameter <> | Date | Tue, 18 Sep 2007 20:36:21 -0700 | Subject | [16/17] Allow virtual fallback for buffer_heads |
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This is in particular useful for large I/Os because it will allow > 100 allocs from the SLUB fast path without having to go to the page allocator.
Signed-off-by: Christoph Lameter <clameter@sgi.com>
--- fs/buffer.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
Index: linux-2.6/fs/buffer.c =================================================================== --- linux-2.6.orig/fs/buffer.c 2007-09-18 15:44:37.000000000 -0700 +++ linux-2.6/fs/buffer.c 2007-09-18 15:44:51.000000000 -0700 @@ -3008,7 +3008,8 @@ void __init buffer_init(void) int nrpages; bh_cachep = KMEM_CACHE(buffer_head, - SLAB_RECLAIM_ACCOUNT|SLAB_PANIC|SLAB_MEM_SPREAD); + SLAB_RECLAIM_ACCOUNT|SLAB_PANIC|SLAB_MEM_SPREAD| + SLAB_VFALLBACK); /* * Limit the bh occupancy to 10% of ZONE_NORMAL -- - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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