Unverified Commit 4a17bb62 authored by openeuler-ci-bot's avatar openeuler-ci-bot Committed by Gitee
Browse files

!9596 iomap: fix warning in iomap_write_delalloc_release() 

Merge Pull Request from: @ci-robot 
 
PR sync from: Long Li <leo.lilong@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/2LQH3IOCY6MPXP7YHFFMJLLYW3T3FEJY/ 
 
https://gitee.com/openeuler/kernel/issues/I76JSK 
 
Link:https://gitee.com/openeuler/kernel/pulls/9596

 

Reviewed-by: default avatarZhang Peng <zhangpeng362@huawei.com>
Signed-off-by: default avatarZhang Peng <zhangpeng362@huawei.com>
parents ed2d630b 91735df9

fs/iomap/buffered-io.c

+11 −1
Original line number Diff line number Diff line
@@ -1227,7 +1227,17 @@ static int iomap_write_delalloc_release(struct inode *inode, 
			error = data_end;

			goto out_unlock;

		}

		WARN_ON_ONCE(data_end <= start_byte);



		/*

		 * Seek for data/hole in the page cache can race with drop

		 * cache, if data page was dropped between seek for data and

		 * hole, data_end may be equal to start_byte, just let it keep

		 * seeking.

		 */

		if (data_end == start_byte)

			continue;



		WARN_ON_ONCE(data_end < start_byte);

		WARN_ON_ONCE(data_end > scan_end_byte);



		error = iomap_write_delalloc_scan(inode, &punch_start_byte,