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Date: Tue, 24 Jun 2014 10:34:00 +0800 From: Chao Yu <chao2.yu@...sung.com> To: Jaegeuk Kim <jaegeuk@...nel.org>, Changman Lee <cm224.lee@...sung.com> Cc: linux-f2fs-devel@...ts.sourceforge.net, linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org Subject: [f2fs-dev][PATCH] f2fs: fix error path in init_inode_metadata If we fail in this path: ->init_inode_metadata ->make_empty_dir ->get_new_data_page ->grab_cache_page return -ENOMEM We will bug on in error path of init_inode_metadata when call remove_inode_page because i_block = 2 (one inode block will be released later & one dentry block). We should release the dentry block in init_inode_metadata to avoid this BUG_ON, and avoid leak of dentry block resource, because we never have second chance to release that block in ->evict_inode as in upper error path we make this inode 'bad'. Signed-off-by: Chao Yu <chao2.yu@...sung.com> --- fs/f2fs/dir.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/f2fs/dir.c b/fs/f2fs/dir.c index 09760d5..3677f41 100644 --- a/fs/f2fs/dir.c +++ b/fs/f2fs/dir.c @@ -384,11 +384,11 @@ static struct page *init_inode_metadata(struct inode *inode, put_error: f2fs_put_page(page, 1); +error: /* once the failed inode becomes a bad inode, i_mode is S_IFREG */ truncate_inode_pages(&inode->i_data, 0); truncate_blocks(inode, 0); remove_dirty_dir_inode(inode); -error: remove_inode_page(inode); return ERR_PTR(err); } -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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