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fs: use helper bio_add_page() instead of open coding on bi_io_vec

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Call pre-defined helper bio_add_page() instead of open coding for
iterating through bi_io_vec[]. Doing that, it's possible to make some
parts in filesystems and mm/page_io.c simpler than before.

Acked-by: Dave Kleikamp <[email protected]>
Cc: Christoph Hellwig <[email protected]>
Cc: Al Viro <[email protected]>
Cc: [email protected]
Signed-off-by: Kent Overstreet <[email protected]>
[dpark: add more description in commit message]
Signed-off-by: Dongsu Park <[email protected]>
Signed-off-by: Ming Lin <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
This commit is contained in:
Kent Overstreet 2014-12-22 12:48:42 +01:00 • committed by Jens Axboe
commit 6cf66b4caf
3 changed files with 9 additions and 20 deletions
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14
fs/jfs/jfs_logmgr.c
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@ -1999,12 +1999,9 @@ static int lbmRead(struct jfs_log * log, int pn, struct lbuf ** bpp)
bio->bi_iter.bi_sector = bp->l_blkno << (log->l2bsize - 9);
bio->bi_bdev = log->bdev;
bio->bi_io_vec[0].bv_page = bp->l_page;
bio->bi_io_vec[0].bv_len = LOGPSIZE;
bio->bi_io_vec[0].bv_offset = bp->l_offset;
bio->bi_vcnt = 1;
bio->bi_iter.bi_size = LOGPSIZE;
bio_add_page(bio, bp->l_page, LOGPSIZE, bp->l_offset);
BUG_ON(bio->bi_iter.bi_size != LOGPSIZE);
bio->bi_end_io = lbmIODone;
bio->bi_private = bp;
@ -2145,12 +2142,9 @@ static void lbmStartIO(struct lbuf * bp)
bio = bio_alloc(GFP_NOFS, 1);
bio->bi_iter.bi_sector = bp->l_blkno << (log->l2bsize - 9);
bio->bi_bdev = log->bdev;
bio->bi_io_vec[0].bv_page = bp->l_page;
bio->bi_io_vec[0].bv_len = LOGPSIZE;
bio->bi_io_vec[0].bv_offset = bp->l_offset;
bio->bi_vcnt = 1;
bio->bi_iter.bi_size = LOGPSIZE;
bio_add_page(bio, bp->l_page, LOGPSIZE, bp->l_offset);
BUG_ON(bio->bi_iter.bi_size != LOGPSIZE);
bio->bi_end_io = lbmIODone;
bio->bi_private = bp;