AuxXxilium/linux_dsm_epyc7002
1
0
Fork 0
mirror of https://github.com/AuxXxilium/linux_dsm_epyc7002.git synced 2024-11-24 14:20:55 +07:00
Code Issues Actions Packages Projects Releases Wiki Activity

f2fs: freeze filesystem when fail to update meta page due to IO error

Browse Source 
In get_meta_page, we guarantee no failure for the returned page,
but sometimes, IO error from device will incur returning an
non-updated page.

Then, we still use this page as updated one, exception could happen
when using this kind of page.

So in this condition, we'd better freeze fs by making fs readonly and
and stop doing checkpoint.

Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Chao Yu 2015-07-29 17:33:13 +08:00 committed by Jaegeuk Kim
parent 5768dcdd7f
commit f3f338caad
1 changed files with 8 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
fs/f2fs/checkpoint.c
View File

@ -79,6 +79,14 @@ struct page *get_meta_page(struct f2fs_sb_info *sbi, pgoff_t index)
f2fs_put_page(page, 1);
goto repeat;
}
/*
* if there is any IO error when accessing device, make our filesystem
* readonly and make sure do not write checkpoint with non-uptodate
* meta page.
*/
if (unlikely(!PageUptodate(page)))
f2fs_stop_checkpoint(sbi);
out:
return page;
}