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ext4: use kmem_cache_zalloc() in ext4_init_io_end()

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Use advantage of kmem_cache_zalloc() to remove a memset() call in
ext4_init_io_end() and save a few bytes.

Before:
 [jj@dragon linux-2.6]$ size fs/ext4/page-io.o
    text    data     bss     dec     hex filename
    3016       0     624    3640     e38 fs/ext4/page-io.o
After:
 [jj@dragon linux-2.6]$ size fs/ext4/page-io.o
    text    data     bss     dec     hex filename
    3000       0     624    3624     e28 fs/ext4/page-io.o

Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
This commit is contained in:
Jesper Juhl 2010-12-19 21:41:55 -05:00 committed by Theodore Ts'o
parent 6ca7b13dea
commit b17b35ec13
1 changed files with 1 additions and 4 deletions
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5
fs/ext4/page-io.c
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@ -158,11 +158,8 @@ static void ext4_end_io_work(struct work_struct *work)
ext4_io_end_t *ext4_init_io_end(struct inode *inode, gfp_t flags)
{
ext4_io_end_t *io = NULL;
io = kmem_cache_alloc(io_end_cachep, flags);
ext4_io_end_t *io = kmem_cache_zalloc(io_end_cachep, flags);
if (io) {
memset(io, 0, sizeof(*io));
atomic_inc(&EXT4_I(inode)->i_ioend_count);
io->inode = inode;
INIT_WORK(&io->work, ext4_end_io_work);