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authorJaegeuk Kim <jaegeuk@kernel.org>2018-09-25 13:54:33 -0700
committerJaegeuk Kim <jaegeuk@kernel.org>2018-10-02 17:33:10 -0700
commitfb7d70db305a1446864227abf711b756568f8242 (patch)
treed9156d06f564861defd7d55d4fef6b7982bc4dde /fs/f2fs
parentf847c699cff3f050286ee0a08632046468e7a511 (diff)
downloadlinux-fb7d70db305a1446864227abf711b756568f8242.tar.bz2
f2fs: clear PageError on the read path
When running fault injection test, I hit somewhat wrong behavior in f2fs_gc -> gc_data_segment(): 0. fault injection generated some PageError'ed pages 1. gc_data_segment -> f2fs_get_read_data_page(REQ_RAHEAD) 2. move_data_page -> f2fs_get_lock_data_page() -> f2f_get_read_data_page() -> f2fs_submit_page_read() -> submit_bio(READ) -> return EIO due to PageError -> fail to move data Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs')
-rw-r--r--fs/f2fs/data.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index 02d5ce888a4a..873f9ea7769f 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -77,7 +77,8 @@ static void __read_end_io(struct bio *bio)
/* PG_error was set if any post_read step failed */
if (bio->bi_status || PageError(page)) {
ClearPageUptodate(page);
- SetPageError(page);
+ /* will re-read again later */
+ ClearPageError(page);
} else {
SetPageUptodate(page);
}
@@ -591,6 +592,7 @@ static int f2fs_submit_page_read(struct inode *inode, struct page *page,
bio_put(bio);
return -EFAULT;
}
+ ClearPageError(page);
__submit_bio(F2FS_I_SB(inode), bio, DATA);
return 0;
}
@@ -1579,6 +1581,7 @@ submit_and_realloc:
if (bio_add_page(bio, page, blocksize, 0) < blocksize)
goto submit_and_realloc;
+ ClearPageError(page);
last_block_in_bio = block_nr;
goto next_page;
set_error_page: