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Date: Sat, 14 May 2016 19:03:53 +0800 From: Chao Yu <yuchao0@...wei.com> To: <jaegeuk@...nel.org> CC: <linux-f2fs-devel@...ts.sourceforge.net>, <linux-kernel@...r.kernel.org>, Chao Yu <yuchao0@...wei.com> Subject: [PATCH 2/2] f2fs: fix incorrect error path handling in f2fs_move_rehashed_dirents Fix two bugs in error path of f2fs_move_rehashed_dirents: - release dir's inode page if fail to call kmalloc - recover i_current_depth if fail to converting Signed-off-by: Chao Yu <yuchao0@...wei.com> --- fs/f2fs/inline.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/fs/f2fs/inline.c b/fs/f2fs/inline.c index 60ba7ac..a4bb155 100644 --- a/fs/f2fs/inline.c +++ b/fs/f2fs/inline.c @@ -464,12 +464,15 @@ static int f2fs_move_rehashed_dirents(struct inode *dir, struct page *ipage, struct f2fs_inline_dentry *inline_dentry) { struct f2fs_inline_dentry *backup_dentry; + struct f2fs_inode_info *fi = F2FS_I(dir); int err; backup_dentry = f2fs_kmalloc(sizeof(struct f2fs_inline_dentry), GFP_F2FS_ZERO); - if (!backup_dentry) + if (!backup_dentry) { + f2fs_put_page(ipage, 1); return -ENOMEM; + } memcpy(backup_dentry, inline_dentry, MAX_INLINE_DATA); truncate_inline_inode(ipage, 0); @@ -483,13 +486,14 @@ static int f2fs_move_rehashed_dirents(struct inode *dir, struct page *ipage, lock_page(ipage); stat_dec_inline_dir(dir); - clear_inode_flag(F2FS_I(dir), FI_INLINE_DENTRY); + clear_inode_flag(fi, FI_INLINE_DENTRY); update_inode(dir, ipage); kfree(backup_dentry); return 0; recover: lock_page(ipage); memcpy(inline_dentry, backup_dentry, MAX_INLINE_DATA); + fi->i_current_depth = 0; i_size_write(dir, MAX_INLINE_DATA); update_inode(dir, ipage); f2fs_put_page(ipage, 1); -- 2.8.2.311.gee88674
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