From 78d07e4aa54372ad2240273e0969ebf7f44fc3c0 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Mon, 1 Jul 2013 08:12:38 -0400 Subject: [PATCH] ext3,ext4: don't mess with dir_file->f_pos in htree_dirblock_to_tree() commit 64cb927371cd2ec43758d8a094a003d27bc3d0dc upstream. Both ext3 and ext4 htree_dirblock_to_tree() is just filling the in-core rbtree for use by call_filldir(). All updates of ->f_pos are done by the latter; bumping it here (on error) is obviously wrong - we might very well have it nowhere near the block we'd found an error in. Signed-off-by: Al Viro Signed-off-by: "Theodore Ts'o" Signed-off-by: Ben Hutchings --- fs/ext3/namei.c | 7 ++----- fs/ext4/namei.c | 7 ++----- 2 files changed, 4 insertions(+), 10 deletions(-) diff --git a/fs/ext3/namei.c b/fs/ext3/namei.c index 642dc6d66dfd..1272dfb56fae 100644 --- a/fs/ext3/namei.c +++ b/fs/ext3/namei.c @@ -585,11 +585,8 @@ static int htree_dirblock_to_tree(struct file *dir_file, if (!ext3_check_dir_entry("htree_dirblock_to_tree", dir, de, bh, (block<i_sb)) +((char *)de - bh->b_data))) { - /* On error, skip the f_pos to the next block. */ - dir_file->f_pos = (dir_file->f_pos | - (dir->i_sb->s_blocksize - 1)) + 1; - brelse (bh); - return count; + /* silently ignore the rest of the block */ + break; } ext3fs_dirhash(de->name, de->name_len, hinfo); if ((hinfo->hash < start_hash) || diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c index 88f97e50d7f6..3ca3b7fabb1b 100644 --- a/fs/ext4/namei.c +++ b/fs/ext4/namei.c @@ -585,11 +585,8 @@ static int htree_dirblock_to_tree(struct file *dir_file, if (ext4_check_dir_entry(dir, NULL, de, bh, (block<i_sb)) + ((char *)de - bh->b_data))) { - /* On error, skip the f_pos to the next block. */ - dir_file->f_pos = (dir_file->f_pos | - (dir->i_sb->s_blocksize - 1)) + 1; - brelse(bh); - return count; + /* silently ignore the rest of the block */ + break; } ext4fs_dirhash(de->name, de->name_len, hinfo); if ((hinfo->hash < start_hash) || -- 2.47.3