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authorLukas Czerner <lczerner@redhat.com>2011-05-06 19:26:28 -0600
committerJens Axboe <jaxboe@fusionio.com>2011-05-06 19:26:28 -0600
commit5baebe5c86acd6100536a466905880529f79cf1a (patch)
tree6c7b4e6e170037981ea1bc094547034d3281c344 /block/blk-lib.c
parent5dba3089ed03f84b84c6c739df8330112f04a15d (diff)
downloadlinux-linaro-stable-5baebe5c86acd6100536a466905880529f79cf1a.tar.gz
blkdev: Simple cleanup in blkdev_issue_zeroout()
In blkdev_issue_zeroout() we are submitting regular WRITE bios, so we do not need to check for -EOPNOTSUPP specifically in case of error. Also there is no need to have label submit: because there is no way to jump out from the while cycle without an error and we really want to exit, rather than try again. And also remove the check for (sz == 0) since at that point sz can never be zero. Signed-off-by: Lukas Czerner <lczerner@redhat.com> Reviewed-by: Jeff Moyer <jmoyer@redhat.com> CC: Dmitry Monakhov <dmonakhov@openvz.org> CC: Jens Axboe <jaxboe@fusionio.com> Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
Diffstat (limited to 'block/blk-lib.c')
-rw-r--r--block/blk-lib.c14
1 files changed, 0 insertions, 14 deletions
diff --git a/block/blk-lib.c b/block/blk-lib.c
index 9260cb0b209b..d7a98d3ed4aa 100644
--- a/block/blk-lib.c
+++ b/block/blk-lib.c
@@ -140,7 +140,6 @@ int blkdev_issue_zeroout(struct block_device *bdev, sector_t sector,
bb.flags = 1 << BIO_UPTODATE;
bb.wait = &wait;
-submit:
ret = 0;
while (nr_sects != 0) {
bio = bio_alloc(gfp_mask,
@@ -157,9 +156,6 @@ submit:
while (nr_sects != 0) {
sz = min((sector_t) PAGE_SIZE >> 9 , nr_sects);
- if (sz == 0)
- /* bio has maximum size possible */
- break;
ret = bio_add_page(bio, ZERO_PAGE(0), sz << 9, 0);
nr_sects -= ret >> 9;
sector += ret >> 9;
@@ -179,16 +175,6 @@ submit:
/* One of bios in the batch was completed with error.*/
ret = -EIO;
- if (ret)
- goto out;
-
- if (test_bit(BIO_EOPNOTSUPP, &bb.flags)) {
- ret = -EOPNOTSUPP;
- goto out;
- }
- if (nr_sects != 0)
- goto submit;
-out:
return ret;
}
EXPORT_SYMBOL(blkdev_issue_zeroout);