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author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-03-09 12:35:53 -0800 |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-03-09 12:35:53 -0800 |
commit | 263a5c8e16c34199ddf6de3f102e789ffa3ee26e (patch) | |
tree | 4f049e339d522b2ab0ba3bed3ec217e4bbc83d35 /drivers/block/loop.c | |
parent | 54d20f006ceff1f2f1e69d0e54049b6c0765c039 (diff) | |
parent | 192cfd58774b4d17b2fe8bdc77d89c2ef4e0591d (diff) | |
download | linux-263a5c8e16c34199ddf6de3f102e789ffa3ee26e.tar.gz linux-263a5c8e16c34199ddf6de3f102e789ffa3ee26e.tar.bz2 linux-263a5c8e16c34199ddf6de3f102e789ffa3ee26e.zip |
Merge 3.3-rc6 into driver-core-next
This was done to resolve a conflict in the drivers/base/cpu.c file.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/block/loop.c')
-rw-r--r-- | drivers/block/loop.c | 24 |
1 files changed, 13 insertions, 11 deletions
diff --git a/drivers/block/loop.c b/drivers/block/loop.c index f00257782fcc..cd504353b278 100644 --- a/drivers/block/loop.c +++ b/drivers/block/loop.c @@ -356,14 +356,14 @@ lo_direct_splice_actor(struct pipe_inode_info *pipe, struct splice_desc *sd) return __splice_from_pipe(pipe, sd, lo_splice_actor); } -static int +static ssize_t do_lo_receive(struct loop_device *lo, struct bio_vec *bvec, int bsize, loff_t pos) { struct lo_read_data cookie; struct splice_desc sd; struct file *file; - long retval; + ssize_t retval; cookie.lo = lo; cookie.page = bvec->bv_page; @@ -379,26 +379,28 @@ do_lo_receive(struct loop_device *lo, file = lo->lo_backing_file; retval = splice_direct_to_actor(file, &sd, lo_direct_splice_actor); - if (retval < 0) - return retval; - if (retval != bvec->bv_len) - return -EIO; - return 0; + return retval; } static int lo_receive(struct loop_device *lo, struct bio *bio, int bsize, loff_t pos) { struct bio_vec *bvec; - int i, ret = 0; + ssize_t s; + int i; bio_for_each_segment(bvec, bio, i) { - ret = do_lo_receive(lo, bvec, bsize, pos); - if (ret < 0) + s = do_lo_receive(lo, bvec, bsize, pos); + if (s < 0) + return s; + + if (s != bvec->bv_len) { + zero_fill_bio(bio); break; + } pos += bvec->bv_len; } - return ret; + return 0; } static int do_bio_filebacked(struct loop_device *lo, struct bio *bio) |