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| author | Jeff Garzik <jeff@garzik.org> | 2007-01-24 02:14:25 -0500 |
|---|---|---|
| committer | Jeff Garzik <jeff@garzik.org> | 2007-01-24 02:14:25 -0500 |
| commit | e47b207a5bcb73bb097f94d9fe364f50737b0eb2 (patch) | |
| tree | 57389653c37d001de3a90655cb4172ba29199ce4 /fs/block_dev.c | |
| parent | d344bff9c36db17dc4765215495aaa7212c1eb6c (diff) | |
| parent | 419dd8378dfa32985672ab7927b4bc827f33b332 (diff) | |
Merge branch 'master' into upstream-fixes
Diffstat (limited to 'fs/block_dev.c')
| -rw-r--r-- | fs/block_dev.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/fs/block_dev.c b/fs/block_dev.c index 8b18e43b82fe..d9bdf2b3ade2 100644 --- a/fs/block_dev.c +++ b/fs/block_dev.c @@ -146,7 +146,7 @@ static int blk_end_aio(struct bio *bio, unsigned int bytes_done, int error) iocb->ki_nbytes = -EIO; if (atomic_dec_and_test(bio_count)) { - if (iocb->ki_nbytes < 0) + if ((long)iocb->ki_nbytes < 0) aio_complete(iocb, iocb->ki_nbytes, 0); else aio_complete(iocb, iocb->ki_left, 0); @@ -190,6 +190,12 @@ static struct page *blk_get_page(unsigned long addr, size_t count, int rw, return pvec->page[pvec->idx++]; } +/* return a page back to pvec array */ +static void blk_unget_page(struct page *page, struct pvec *pvec) +{ + pvec->page[--pvec->idx] = page; +} + static ssize_t blkdev_direct_IO(int rw, struct kiocb *iocb, const struct iovec *iov, loff_t pos, unsigned long nr_segs) @@ -278,6 +284,8 @@ same_bio: count = min(count, nbytes); goto same_bio; } + } else { + blk_unget_page(page, &pvec); } /* bio is ready, submit it */ |