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authorJaegeuk Kim <jaegeuk.kim@samsung.com>2013-12-27 17:04:17 +0900
committerJaegeuk Kim <jaegeuk.kim@samsung.com>2014-01-06 16:42:21 +0900
commita8865372a8414298982e07f4ac8d6dc0ab1e0a3d (patch)
treed854711c56be4c135701610710c0fda95a297d13 /fs/f2fs/dir.c
parent1e1bb4baf10be371f72150e2801d97a04d40b3b9 (diff)
downloadop-kernel-dev-a8865372a8414298982e07f4ac8d6dc0ab1e0a3d.zip
op-kernel-dev-a8865372a8414298982e07f4ac8d6dc0ab1e0a3d.tar.gz
f2fs: handle errors correctly during f2fs_reserve_block
The get_dnode_of_data nullifies inode and node page when error is occurred. There are two cases that passes inode page into get_dnode_of_data(). 1. make_empty_dir() -> get_new_data_page() -> f2fs_reserve_block(ipage) -> get_dnode_of_data() 2. f2fs_convert_inline_data() -> __f2fs_convert_inline_data() -> f2fs_reserve_block(ipage) -> get_dnode_of_data() This patch adds correct error handling codes when get_dnode_of_data() returns an error. At first, f2fs_reserve_block() calls f2fs_put_dnode() whenever reserve_new_block returns an error. So, the rule of f2fs_reserve_block() is to nullify inode page when there is any error internally. Finally, two callers of f2fs_reserve_block() should call f2fs_put_dnode() appropriately if they got an error since successful f2fs_reserve_block(). Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
Diffstat (limited to 'fs/f2fs/dir.c')
-rw-r--r--fs/f2fs/dir.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/fs/f2fs/dir.c b/fs/f2fs/dir.c
index 6da77e5..f815ca0 100644
--- a/fs/f2fs/dir.c
+++ b/fs/f2fs/dir.c
@@ -342,11 +342,11 @@ static struct page *init_inode_metadata(struct inode *inode,
err = f2fs_init_acl(inode, dir, page);
if (err)
- goto error;
+ goto put_error;
err = f2fs_init_security(inode, dir, name, page);
if (err)
- goto error;
+ goto put_error;
wait_on_page_writeback(page);
} else {
@@ -370,8 +370,9 @@ static struct page *init_inode_metadata(struct inode *inode,
}
return page;
-error:
+put_error:
f2fs_put_page(page, 1);
+error:
remove_inode_page(inode);
return ERR_PTR(err);
}
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