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| author | Eric Dumazet <dada1@cosmosbay.com> | 2006-01-08 01:03:40 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-01-08 20:13:59 -0800 |
| commit | f867bac65419a98c9682f4409e087582d29ec5f6 (patch) | |
| tree | c65e5663259ae2df77179683c8189e6c3de3b9fe /include/linux/percpu.h | |
| parent | e78c9a004aadebe22306c81d1a7f1d1278dc37f9 (diff) | |
| download | linux-f867bac65419a98c9682f4409e087582d29ec5f6.tar.gz linux-f867bac65419a98c9682f4409e087582d29ec5f6.tar.bz2 linux-f867bac65419a98c9682f4409e087582d29ec5f6.zip | |
[PATCH] remove unused blkp field in percpu_data
I found that blkp field was not used in kernel tree.
As most of the times NR_CPUS is a power of two and kmalloc() memory blocks
too, this extra field basically doubles the memory space allocated in
__alloc_percpu() to store the 'struct percpu_data'
(for example, if NR_CPUS=8 on i386, kmalloc(4*8+4) returns a 64 bytes block
instead of a 32 bytes block after this patch)
Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/linux/percpu.h')
| -rw-r--r-- | include/linux/percpu.h | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/include/linux/percpu.h b/include/linux/percpu.h index 20317d88deba..cb9039a21f2a 100644 --- a/include/linux/percpu.h +++ b/include/linux/percpu.h @@ -19,7 +19,6 @@ struct percpu_data { void *ptrs[NR_CPUS]; - void *blkp; }; /* |