diff options
| author | Jaegeuk Kim <jaegeuk@kernel.org> | 2023-01-19 10:47:00 -0800 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2023-08-14 13:41:07 -0700 |
| commit | d2d9bb3b6d2fbccb5b33d3a85a2830971625a4ea (patch) | |
| tree | 3e46746af1dba3f9b609fe50e0bfc6651f02c529 /fs/f2fs | |
| parent | a3ab55746612247ce3dcaac6de66f5ffc055b9df (diff) | |
f2fs: get out of a repeat loop when getting a locked data page
https://bugzilla.kernel.org/show_bug.cgi?id=216050
Somehow we're getting a page which has a different mapping.
Let's avoid the infinite loop.
Cc: <stable@vger.kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs')
| -rw-r--r-- | fs/f2fs/data.c | 8 |
1 files changed, 2 insertions, 6 deletions
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c index 5882afe71d82..ecebc3a139be 100644 --- a/fs/f2fs/data.c +++ b/fs/f2fs/data.c @@ -1389,18 +1389,14 @@ struct page *f2fs_get_lock_data_page(struct inode *inode, pgoff_t index, { struct address_space *mapping = inode->i_mapping; struct page *page; -repeat: + page = f2fs_get_read_data_page(inode, index, 0, for_write, NULL); if (IS_ERR(page)) return page; /* wait for read completion */ lock_page(page); - if (unlikely(page->mapping != mapping)) { - f2fs_put_page(page, 1); - goto repeat; - } - if (unlikely(!PageUptodate(page))) { + if (unlikely(page->mapping != mapping || !PageUptodate(page))) { f2fs_put_page(page, 1); return ERR_PTR(-EIO); } |