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| author | Ming Lei <ming.lei@redhat.com> | 2020-01-05 09:41:14 +0800 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2020-01-09 08:16:12 -0700 |
| commit | 83c9c547168e8b914ea6398430473a4de68c52cc (patch) | |
| tree | 9134fc796f74f44136d488d92ab270f9b1cdf788 /fs/internal.h | |
| parent | 57415790f405534e5578d0106d806630c325dcb3 (diff) | |
| download | lwn-83c9c547168e8b914ea6398430473a4de68c52cc.tar.gz lwn-83c9c547168e8b914ea6398430473a4de68c52cc.zip | |
fs: move guard_bio_eod() after bio_set_op_attrs
Commit 85a8ce62c2ea ("block: add bio_truncate to fix guard_bio_eod")
adds bio_truncate() for handling bio EOD. However, bio_truncate()
doesn't use the passed 'op' parameter from guard_bio_eod's callers.
So bio_trunacate() may retrieve wrong 'op', and zering pages may
not be done for READ bio.
Fixes this issue by moving guard_bio_eod() after bio_set_op_attrs()
in submit_bh_wbc() so that bio_truncate() can always retrieve correct
op info.
Meantime remove the 'op' parameter from guard_bio_eod() because it isn't
used any more.
Cc: Carlos Maiolino <cmaiolino@redhat.com>
Cc: linux-fsdevel@vger.kernel.org
Fixes: 85a8ce62c2ea ("block: add bio_truncate to fix guard_bio_eod")
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Fold in kerneldoc and bio_op() change.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'fs/internal.h')
| -rw-r--r-- | fs/internal.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/internal.h b/fs/internal.h index 4a7da1df573d..e3fa69544b66 100644 --- a/fs/internal.h +++ b/fs/internal.h @@ -38,7 +38,7 @@ static inline int __sync_blockdev(struct block_device *bdev, int wait) /* * buffer.c */ -extern void guard_bio_eod(int rw, struct bio *bio); +extern void guard_bio_eod(struct bio *bio); extern int __block_write_begin_int(struct page *page, loff_t pos, unsigned len, get_block_t *get_block, struct iomap *iomap); |