From: Theodore Ts'o Date: Sun, 13 Apr 2014 02:53:53 +0000 (-0400) Subject: ext4: COLLAPSE_RANGE only works on extent-based files X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=40c406c74eb9eed58ae7d4d12a0197f7279c9499;p=linux-beck.git ext4: COLLAPSE_RANGE only works on extent-based files Unfortunately, we weren't checking to make sure of this the inode was extent-based before attempt operate on it. Hilarity ensues. Signed-off-by: "Theodore Ts'o" Cc: Namjae Jeon --- diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c index f24ef8697609..96e0a4bc8faa 100644 --- a/fs/ext4/extents.c +++ b/fs/ext4/extents.c @@ -4878,9 +4878,6 @@ long ext4_fallocate(struct file *file, int mode, loff_t offset, loff_t len) if (mode & FALLOC_FL_PUNCH_HOLE) return ext4_punch_hole(inode, offset, len); - if (mode & FALLOC_FL_COLLAPSE_RANGE) - return ext4_collapse_range(inode, offset, len); - ret = ext4_convert_inline_data(inode); if (ret) return ret; @@ -4892,6 +4889,9 @@ long ext4_fallocate(struct file *file, int mode, loff_t offset, loff_t len) if (!(ext4_test_inode_flag(inode, EXT4_INODE_EXTENTS))) return -EOPNOTSUPP; + if (mode & FALLOC_FL_COLLAPSE_RANGE) + return ext4_collapse_range(inode, offset, len); + if (mode & FALLOC_FL_ZERO_RANGE) return ext4_zero_range(file, offset, len, mode);