diff mbox

[6/7] f2fs: fix deadlock in add_link failure

Message ID 20160608172444.60371-6-jaegeuk@kernel.org (mailing list archive)
State New, archived
Headers show

Commit Message

Jaegeuk Kim June 8, 2016, 5:24 p.m. UTC 
mkdir                        sync_dirty_inode
 - init_inode_metadata
   - lock_page(node)
   - make_empty_dir
                             - filemap_fdatawrite()
                              - do_writepages
                              - lock_page(data)
                              - write_page(data)
                               - lock_page(node)
   - f2fs_init_acl
    - error
   - truncate_inode_pages
    - lock_page(data)

So, we don't need to truncate data pages in this error case, which will
be done by f2fs_evict_inode.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 fs/f2fs/dir.c | 3 ---
 1 file changed, 3 deletions(-)
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Patch

diff --git a/fs/f2fs/dir.c b/fs/f2fs/dir.c
index f6ab3c2..4864824 100644
--- a/fs/f2fs/dir.c
+++ b/fs/f2fs/dir.c
@@ -450,9 +450,6 @@  struct page *init_inode_metadata(struct inode *inode, struct inode *dir,
 	return page;
 
 put_error:
-	/* truncate empty dir pages */
-	truncate_inode_pages(&inode->i_data, 0);
-
 	clear_nlink(inode);
 	update_inode(inode, page);
 	f2fs_put_page(page, 1);