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f2fs: flush bios to handle cp_error in put_super

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Sometimes, if cp_error is set, there remains under-writeback pages, resulting in
kernel hang in put_super.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Jaegeuk Kim 2016-01-29 08:57:59 -08:00
parent 44a9bb0698
commit 5a16718752
1 changed files with 7 additions and 0 deletions
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7
fs/f2fs/super.c
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@ -581,6 +581,13 @@ static void f2fs_put_super(struct super_block *sb)
f2fs_leave_shrinker(sbi);
mutex_unlock(&sbi->umount_mutex);
/* our cp_error case, we can wait for any writeback page */
if (get_pages(sbi, F2FS_WRITEBACK)) {
f2fs_submit_merged_bio(sbi, DATA, WRITE);
f2fs_submit_merged_bio(sbi, NODE, WRITE);
f2fs_submit_merged_bio(sbi, META, WRITE);
}
iput(sbi->node_inode);
iput(sbi->meta_inode);