Sarthak Kukreti 1364a3c391 block: Don't invalidate pagecache for invalid falloc modes
Only call truncate_bdev_range() if the fallocate mode is supported. This
fixes a bug where data in the pagecache could be invalidated if the
fallocate() was called on the block device with an invalid mode.

Fixes: 25f4c41415e5 ("block: implement (some of) fallocate for block devices")
Cc: stable@vger.kernel.org
Reported-by: "Darrick J. Wong" <djwong@kernel.org>
Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: "Darrick J. Wong" <djwong@kernel.org>
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Fixes: line?  I've never seen those wrapped.
Link: https://lore.kernel.org/r/20231011201230.750105-1-sarthakkukreti@chromium.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2023-10-11 15:53:17 -06:00
..
2023-08-29 20:21:42 -07:00
2023-08-23 13:06:55 +02:00
2023-06-30 11:57:07 -07:00
2023-08-14 15:40:42 -06:00
2023-08-29 20:21:42 -07:00
2023-04-26 12:52:58 -07:00
2023-08-29 20:21:42 -07:00
2023-06-26 12:47:20 -07:00
2023-08-14 15:40:42 -06:00
2023-06-30 11:57:07 -07:00
2022-03-07 12:48:35 -07:00