Commit da0c5d26 authored Nov 05, 2020 by Harshad Shirwadkar Committed by Theodore Ts'o Nov 06, 2020

ext4: issue fsdev cache flush before starting fast commit



If the journal dev is different from fsdev, issue a cache flush before
committing fast commit blocks to disk.

Suggested-by: Jan Kara <jack@suse.cz>
Signed-off-by: Harshad Shirwadkar <harshadshirwadkar@gmail.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20201106035911.1942128-20-harshadshirwadkar@gmail.com


Signed-off-by: Theodore Ts'o <tytso@mit.edu>

parent 556e0319

fs/ext4/fast_commit.c

+7 −0

Original line number	Diff line number	Diff line
		@@ -1007,6 +1007,13 @@ static int ext4_fc_perform_commit(journal_t *journal)
		if (ret)
		return ret;

		/*
		* If file system device is different from journal device, issue a cache
		* flush before we start writing fast commit blocks.
		*/
		if (journal->j_fs_dev != journal->j_dev)
		blkdev_issue_flush(journal->j_fs_dev, GFP_NOFS);

		blk_start_plug(&plug);
		if (sbi->s_fc_bytes == 0) {
		/*