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authorJan Kara <jack@suse.cz>2016-11-04 18:08:15 +0100
committerJens Axboe <axboe@fb.com>2016-11-04 14:34:47 -0600
commite64855c6cfaa0a80c1b71c5f647cb792dc436668 (patch)
tree751d56f17914506a5e54a380f9a4d4519cadfa18 /fs/mpage.c
parent69a9bea146b185be8ec50e80eaecd8e487e689f8 (diff)
downloadblackbird-op-linux-e64855c6cfaa0a80c1b71c5f647cb792dc436668.tar.gz
blackbird-op-linux-e64855c6cfaa0a80c1b71c5f647cb792dc436668.zip
fs: Add helper to clean bdev aliases under a bh and use it
Add a helper function that clears buffer heads from a block device aliasing passed bh. Use this helper function from filesystems instead of the original unmap_underlying_metadata() to save some boiler plate code and also have a better name for the functionalily since it is not unmapping anything for a *long* time. Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'fs/mpage.c')
-rw-r--r--fs/mpage.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/fs/mpage.c b/fs/mpage.c
index 98fc11aa7e0b..28af984a3d96 100644
--- a/fs/mpage.c
+++ b/fs/mpage.c
@@ -555,8 +555,7 @@ static int __mpage_writepage(struct page *page, struct writeback_control *wbc,
if (mpd->get_block(inode, block_in_file, &map_bh, 1))
goto confused;
if (buffer_new(&map_bh))
- unmap_underlying_metadata(map_bh.b_bdev,
- map_bh.b_blocknr);
+ clean_bdev_bh_alias(&map_bh);
if (buffer_boundary(&map_bh)) {
boundary_block = map_bh.b_blocknr;
boundary_bdev = map_bh.b_bdev;
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