diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2011-02-22 18:24:26 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2011-02-22 18:41:48 +0100 |
| commit | 695884fb8acd9857e0e7120ccb2150e30f4b8fef (patch) | |
| tree | 49aa424c1a021ce432e9fa5ea29d37a23e4e30cc /fs/direct-io.c | |
| parent | 5df91509d324d44cfb11e55d9cb02fe18b53b045 (diff) | |
| parent | 04bea68b2f0eeebb089ecc67b618795925268b4a (diff) | |
Merge branch 'devicetree/for-x86' of git://git.secretlab.ca/git/linux-2.6 into x86/platform
Reason: x86 devicetree support for ce4100 depends on those device tree
changes scheduled for .39.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'fs/direct-io.c')
| -rw-r--r-- | fs/direct-io.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/fs/direct-io.c b/fs/direct-io.c index 85882f6ba5f7..b044705eedd4 100644 --- a/fs/direct-io.c +++ b/fs/direct-io.c @@ -325,12 +325,16 @@ void dio_end_io(struct bio *bio, int error) } EXPORT_SYMBOL_GPL(dio_end_io); -static int +static void dio_bio_alloc(struct dio *dio, struct block_device *bdev, sector_t first_sector, int nr_vecs) { struct bio *bio; + /* + * bio_alloc() is guaranteed to return a bio when called with + * __GFP_WAIT and we request a valid number of vectors. + */ bio = bio_alloc(GFP_KERNEL, nr_vecs); bio->bi_bdev = bdev; @@ -342,7 +346,6 @@ dio_bio_alloc(struct dio *dio, struct block_device *bdev, dio->bio = bio; dio->logical_offset_in_bio = dio->cur_page_fs_offset; - return 0; } /* @@ -583,8 +586,9 @@ static int dio_new_bio(struct dio *dio, sector_t start_sector) goto out; sector = start_sector << (dio->blkbits - 9); nr_pages = min(dio->pages_in_io, bio_get_nr_vecs(dio->map_bh.b_bdev)); + nr_pages = min(nr_pages, BIO_MAX_PAGES); BUG_ON(nr_pages <= 0); - ret = dio_bio_alloc(dio, dio->map_bh.b_bdev, sector, nr_pages); + dio_bio_alloc(dio, dio->map_bh.b_bdev, sector, nr_pages); dio->boundary = 0; out: return ret; |