| commit | f867bac65419a98c9682f4409e087582d29ec5f6 | |
| author | Eric Dumazet <dada1@cosmosbay.com> | |
| Sun, 8 Jan 2006 09:03:40 +0000 (8 01:03 -0800) | ||
| committer | Linus Torvalds <torvalds@g5.osdl.org> | |
| Mon, 9 Jan 2006 04:13:59 +0000 (8 20:13 -0800) | ||
| tree | c65e5663259ae2df77179683c8189e6c3de3b9fe | treesnapshot (tar.gz zip) |
| parent | e78c9a004aadebe22306c81d1a7f1d1278dc37f9 | commitdiff |
[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>
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>
| include/linux/percpu.h | diffblobblamehistory |