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f2fs: fix error path in do_recover_data()

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[ Upstream commit 9627a7b31f3c4ff8bc8f3be3683983ffe6eaebe6 ]

- don't panic kernel if f2fs_get_node_page() fails in
f2fs_recover_inline_data() or f2fs_recover_inline_xattr();
- return error number of f2fs_truncate_blocks() to
f2fs_recover_inline_data()'s caller;

Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Chao Yu
2020-07-06 18:23:36 +08:00
committed by Greg Kroah-Hartman
parent 8c74fe263a
commit 9e2c212d7c
4 changed files with 26 additions and 13 deletions
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19
fs/f2fs/inline.c
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@@ -256,7 +256,7 @@ int f2fs_write_inline_data(struct inode *inode, struct page *page)
return 0;
}
bool f2fs_recover_inline_data(struct inode *inode, struct page *npage)
int f2fs_recover_inline_data(struct inode *inode, struct page *npage)
{
struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
struct f2fs_inode *ri = NULL;
@@ -278,7 +278,8 @@ bool f2fs_recover_inline_data(struct inode *inode, struct page *npage)
ri && (ri->i_inline & F2FS_INLINE_DATA)) {
process_inline:
ipage = f2fs_get_node_page(sbi, inode->i_ino);
f2fs_bug_on(sbi, IS_ERR(ipage));
if (IS_ERR(ipage))
return PTR_ERR(ipage);
f2fs_wait_on_page_writeback(ipage, NODE, true);
@@ -291,21 +292,25 @@ bool f2fs_recover_inline_data(struct inode *inode, struct page *npage)
set_page_dirty(ipage);
f2fs_put_page(ipage, 1);
return true;
return 1;
}
if (f2fs_has_inline_data(inode)) {
ipage = f2fs_get_node_page(sbi, inode->i_ino);
f2fs_bug_on(sbi, IS_ERR(ipage));
if (IS_ERR(ipage))
return PTR_ERR(ipage);
f2fs_truncate_inline_inode(inode, ipage, 0);
clear_inode_flag(inode, FI_INLINE_DATA);
f2fs_put_page(ipage, 1);
} else if (ri && (ri->i_inline & F2FS_INLINE_DATA)) {
if (f2fs_truncate_blocks(inode, 0, false))
return false;
int ret;
ret = f2fs_truncate_blocks(inode, 0, false);
if (ret)
return ret;
goto process_inline;
}
return false;
return 0;
}
struct f2fs_dir_entry *f2fs_find_in_inline_dir(struct inode *dir,