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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/ntfs
parent69a9bea146b185be8ec50e80eaecd8e487e689f8 (diff)
downloadop-kernel-dev-e64855c6cfaa0a80c1b71c5f647cb792dc436668.zip
op-kernel-dev-e64855c6cfaa0a80c1b71c5f647cb792dc436668.tar.gz
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/ntfs')
-rw-r--r--fs/ntfs/aops.c2
-rw-r--r--fs/ntfs/file.c5
2 files changed, 3 insertions, 4 deletions
diff --git a/fs/ntfs/aops.c b/fs/ntfs/aops.c
index d0cf6fe..cc91856 100644
--- a/fs/ntfs/aops.c
+++ b/fs/ntfs/aops.c
@@ -765,7 +765,7 @@ lock_retry_remap:
}
// TODO: Instantiate the hole.
// clear_buffer_new(bh);
- // unmap_underlying_metadata(bh->b_bdev, bh->b_blocknr);
+ // clean_bdev_bh_alias(bh);
ntfs_error(vol->sb, "Writing into sparse regions is "
"not supported yet. Sorry.");
err = -EOPNOTSUPP;
diff --git a/fs/ntfs/file.c b/fs/ntfs/file.c
index bf72a2c..99510d8 100644
--- a/fs/ntfs/file.c
+++ b/fs/ntfs/file.c
@@ -740,8 +740,7 @@ map_buffer_cached:
set_buffer_uptodate(bh);
if (unlikely(was_hole)) {
/* We allocated the buffer. */
- unmap_underlying_metadata(bh->b_bdev,
- bh->b_blocknr);
+ clean_bdev_bh_alias(bh);
if (bh_end <= pos || bh_pos >= end)
mark_buffer_dirty(bh);
else
@@ -784,7 +783,7 @@ map_buffer_cached:
continue;
}
/* We allocated the buffer. */
- unmap_underlying_metadata(bh->b_bdev, bh->b_blocknr);
+ clean_bdev_bh_alias(bh);
/*
* If the buffer is fully outside the write, zero it,
* set it uptodate, and mark it dirty so it gets
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