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mm: Add functions to lock invalidate_lock for two mappings
authorJan Kara <jack@suse.cz>
Mon, 24 May 2021 11:02:30 +0000 (13:02 +0200)
committerJan Kara <jack@suse.cz>
Tue, 13 Jul 2021 12:29:00 +0000 (14:29 +0200)
commit7506ae6a7033f617ca5fea53e356fb1f7bd98010
tree2f018aab5c218ed18d25d5c9521add9627010905tree | snapshot
parent730633f0b7f951726e87f912a6323641f674ae34commit | diff
mm: Add functions to lock invalidate_lock for two mappings

Some operations such as reflinking blocks among files will need to lock
invalidate_lock for two mappings. Add helper functions to do that.

Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jan Kara <jack@suse.cz>
include/linux/fs.h diff | blob | blame | history
mm/filemap.c diff | blob | blame | history
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