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authorLinus Torvalds <torvalds@linux-foundation.org>2016-12-15 02:09:00 +0100
committerLinus Torvalds <torvalds@linux-foundation.org>2016-12-15 02:09:00 +0100
commit80eabba70260dcb55b05098f6c1fecbe5c0e518b (patch)
treec9f5d19803a3387d2b9d8a6998eb9c58bad2a15a /fs/ext2
parentdocs: add back 'Documentation/Changes' file (as symlink) (diff)
parentfs: Remove unmap_underlying_metadata (diff)
downloadlinux-80eabba70260dcb55b05098f6c1fecbe5c0e518b.tar.xz
linux-80eabba70260dcb55b05098f6c1fecbe5c0e518b.zip
Merge branch 'for-4.10/fs-unmap' of git://git.kernel.dk/linux-block
Pull fs meta data unmap optimization from Jens Axboe: "A series from Jan Kara, providing a more efficient way for unmapping meta data from in the buffer cache than doing it block-by-block. Provide a general helper that existing callers can use" * 'for-4.10/fs-unmap' of git://git.kernel.dk/linux-block: fs: Remove unmap_underlying_metadata fs: Add helper to clean bdev aliases under a bh and use it ext2: Use clean_bdev_aliases() instead of iteration ext4: Use clean_bdev_aliases() instead of iteration direct-io: Use clean_bdev_aliases() instead of handmade iteration fs: Provide function to unmap metadata for a range of blocks
Diffstat (limited to 'fs/ext2')
-rw-r--r--fs/ext2/inode.c9
1 files changed, 3 insertions, 6 deletions
diff --git a/fs/ext2/inode.c b/fs/ext2/inode.c
index 046b642f3585..e173afe92661 100644
--- a/fs/ext2/inode.c
+++ b/fs/ext2/inode.c
@@ -732,16 +732,13 @@ static int ext2_get_blocks(struct inode *inode,
}
if (IS_DAX(inode)) {
- int i;
-
/*
* We must unmap blocks before zeroing so that writeback cannot
* overwrite zeros with stale data from block device page cache.
*/
- for (i = 0; i < count; i++) {
- unmap_underlying_metadata(inode->i_sb->s_bdev,
- le32_to_cpu(chain[depth-1].key) + i);
- }
+ clean_bdev_aliases(inode->i_sb->s_bdev,
+ le32_to_cpu(chain[depth-1].key),
+ count);
/*
* block must be initialised before we put it in the tree
* so that it's not found by another thread before it's