optimize mpage_readpage()
we don't need to initialize bio, and pass it to do_mpage_readpage() as
parameter, as it is returned by do_mpage_readpage().
Signed-off-by: Changli Gao <xiaosuo@xxxxxxxxx>
----
fs/mpage.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/fs/mpage.c b/fs/mpage.c
index fd56ca2..94ff0d1 100644
--- a/fs/mpage.c
+++ b/fs/mpage.c
@@ -409,14 +409,14 @@ EXPORT_SYMBOL(mpage_readpages);
*/
int mpage_readpage(struct page *page, get_block_t get_block)
{
- struct bio *bio = NULL;
+ struct bio *bio;
sector_t last_block_in_bio = 0;
struct buffer_head map_bh;
unsigned long first_logical_block = 0;
map_bh.b_state = 0;
map_bh.b_size = 0;
- bio = do_mpage_readpage(bio, page, 1, &last_block_in_bio,
+ bio = do_mpage_readpage(NULL, page, 1, &last_block_in_bio,
&map_bh, &first_logical_block, get_block);
if (bio)
mpage_bio_submit(READ, bio);
--
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