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authorLinus Torvalds <torvalds@linux-foundation.org>2016-12-14 17:09:00 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2016-12-14 17:09:00 -0800
commit80eabba70260dcb55b05098f6c1fecbe5c0e518b (patch)
treec9f5d19803a3387d2b9d8a6998eb9c58bad2a15a /include
parent852d21ae1fcdf0e4de6b5bfa730d29cb013c7ff3 (diff)
parentce98321bf7d274a470642ef99e1d82512673ce7c (diff)
downloadlinux-80eabba70260dcb55b05098f6c1fecbe5c0e518b.tar.bz2
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 'include')
-rw-r--r--include/linux/buffer_head.h7
1 files changed, 6 insertions, 1 deletions
diff --git a/include/linux/buffer_head.h b/include/linux/buffer_head.h
index ebbacd14d450..d67ab83823ad 100644
--- a/include/linux/buffer_head.h
+++ b/include/linux/buffer_head.h
@@ -168,7 +168,12 @@ int inode_has_buffers(struct inode *);
void invalidate_inode_buffers(struct inode *);
int remove_inode_buffers(struct inode *inode);
int sync_mapping_buffers(struct address_space *mapping);
-void unmap_underlying_metadata(struct block_device *bdev, sector_t block);
+void clean_bdev_aliases(struct block_device *bdev, sector_t block,
+ sector_t len);
+static inline void clean_bdev_bh_alias(struct buffer_head *bh)
+{
+ clean_bdev_aliases(bh->b_bdev, bh->b_blocknr, 1);
+}
void mark_buffer_async_write(struct buffer_head *bh);
void __wait_on_buffer(struct buffer_head *);