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f2fs: avoid clear valid page 

In f2fs_delete_entry, if last dirent is remove from the dentry page,
we will try to punch that page since it has no valid date in it.

But truncate_hole which is used for punching could fail because of
no memory or IO error, if that happened, we'd better skip clearing
this valid dentry page.

Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Chao Yu 2015-08-12 17:48:21 +08:00 committed by Jaegeuk Kim
parent 7b2a246b88
commit 206e61be29
1 changed files with 2 additions and 2 deletions
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4
fs/f2fs/dir.c
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@ -718,8 +718,8 @@ void f2fs_delete_entry(struct f2fs_dir_entry *dentry, struct page *page,
if (inode)
f2fs_drop_nlink(dir, inode, NULL);
if (bit_pos == NR_DENTRY_IN_BLOCK) {
truncate_hole(dir, page->index, page->index + 1);
if (bit_pos == NR_DENTRY_IN_BLOCK &&
!truncate_hole(dir, page->index, page->index + 1)) {
clear_page_dirty_for_io(page);
ClearPagePrivate(page);
ClearPageUptodate(page);