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f2fs: fix to wait page writeback during revoking atomic write

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[ Upstream commit e5e5732d8120654159254c16834bc8663d8be124 ]

After revoking atomic write, related LBA can be reused by others, so we
need to wait page writeback before reusing the LBA, in order to avoid
interference between old atomic written in-flight IO and new IO.

Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Chao Yu 2018-04-23 10:36:13 +08:00 committed by Greg Kroah-Hartman
parent de13b2ac74
commit 4f979af7b0
1 changed files with 2 additions and 0 deletions
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2
fs/f2fs/segment.c
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@ -225,6 +225,8 @@ static int __revoke_inmem_pages(struct inode *inode,
lock_page(page);
f2fs_wait_on_page_writeback(page, DATA, true);
if (recover) {
struct dnode_of_data dn;
struct node_info ni;