[PATCH] ext4: group info caches set to SLAB_MEM_SPREAD flags.
From: Namjae Jeon
Date: Sat Nov 19 2011 - 17:49:20 EST
If group info caches set to SLAB_MEM_SPREAD flags, the allocation is spread evenly over all the memory nodes when using cpuset.
It is useful because group info caches are long lived.
Signed-off-by: Namjae Jeon <linkinjeon@xxxxxxxxx>
Signed-off-by: Amit Sahrawat <amit.sahrawat83@xxxxxxxxx>
---
fs/ext4/mballoc.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index e2d8be8..7aacbbe 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -2407,7 +2407,8 @@ static int ext4_groupinfo_create_slab(size_t size)
bb_counters[blocksize_bits + 2]);
cachep = kmem_cache_create(ext4_groupinfo_slab_names[cache_index],
- slab_size, 0, SLAB_RECLAIM_ACCOUNT,
+ slab_size, 0, SLAB_RECLAIM_ACCOUNT |
+ SLAB_MEM_SPREAD,
NULL);
ext4_groupinfo_caches[cache_index] = cachep;
--
1.7.4.4
--
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