diff options
author | Jaegeuk Kim <jaegeuk.kim@samsung.com> | 2013-12-27 03:04:17 -0500 |
---|---|---|
committer | Jaegeuk Kim <jaegeuk.kim@samsung.com> | 2014-01-06 02:42:21 -0500 |
commit | a8865372a8414298982e07f4ac8d6dc0ab1e0a3d (patch) | |
tree | d854711c56be4c135701610710c0fda95a297d13 /fs/f2fs/dir.c | |
parent | 1e1bb4baf10be371f72150e2801d97a04d40b3b9 (diff) |
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.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/fs/f2fs/dir.c b/fs/f2fs/dir.c index 6da77e5c753b..f815ca0c5819 100644 --- a/fs/f2fs/dir.c +++ b/fs/f2fs/dir.c | |||
@@ -342,11 +342,11 @@ static struct page *init_inode_metadata(struct inode *inode, | |||
342 | 342 | ||
343 | err = f2fs_init_acl(inode, dir, page); | 343 | err = f2fs_init_acl(inode, dir, page); |
344 | if (err) | 344 | if (err) |
345 | goto error; | 345 | goto put_error; |
346 | 346 | ||
347 | err = f2fs_init_security(inode, dir, name, page); | 347 | err = f2fs_init_security(inode, dir, name, page); |
348 | if (err) | 348 | if (err) |
349 | goto error; | 349 | goto put_error; |
350 | 350 | ||
351 | wait_on_page_writeback(page); | 351 | wait_on_page_writeback(page); |
352 | } else { | 352 | } else { |
@@ -370,8 +370,9 @@ static struct page *init_inode_metadata(struct inode *inode, | |||
370 | } | 370 | } |
371 | return page; | 371 | return page; |
372 | 372 | ||
373 | error: | 373 | put_error: |
374 | f2fs_put_page(page, 1); | 374 | f2fs_put_page(page, 1); |
375 | error: | ||
375 | remove_inode_page(inode); | 376 | remove_inode_page(inode); |
376 | return ERR_PTR(err); | 377 | return ERR_PTR(err); |
377 | } | 378 | } |