btrfs: trimming some start_transaction() code away

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Just call kmem_cache_zalloc() instead of calling kmem_cache_alloc().
We're just initializing most fields to 0, false and NULL later on
_anyway_, so to make the code mode readable and potentially gain
a bit of performance (completely untested claim), we should fill our
btrfs_trans_handle with zeros on allocation then just initialize
those five remaining fields (not counting the list_heads) as normal.

Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: Alexandru Moise <00moses.alexander00@gmail.com>
Signed-off-by: David Sterba <dsterba@suse.com>

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Alexandru Moise 2015-08-27 23:53:45 +00:00 • committed by David Sterba

parent 0412e58c6d

commit f2f767e734

1 changed files with 1 additions and 14 deletions

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fs/btrfs/transaction.c

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