Messages in this thread Patch in this message | | | From | Daeho Jeong <> | Subject | [PATCH] f2fs: ignore when len of range in f2fs_sec_trim_file is zero | Date | Thu, 9 Jul 2020 10:57:39 +0900 |
| |
From: Daeho Jeong <daehojeong@google.com>
When end_addr comes to zero, it'll trigger different behaviour. To prevent this, we need to ignore the case of that range.len is zero in the function.
Signed-off-by: Daeho Jeong <daehojeong@google.com> --- fs/f2fs/file.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-)
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c index 368c80f8e2a1..98b0a8dbf669 100644 --- a/fs/f2fs/file.c +++ b/fs/f2fs/file.c @@ -3813,15 +3813,14 @@ static int f2fs_sec_trim_file(struct file *filp, unsigned long arg) file_start_write(filp); inode_lock(inode); - if (f2fs_is_atomic_file(inode) || f2fs_compressed_file(inode)) { + if (f2fs_is_atomic_file(inode) || f2fs_compressed_file(inode) || + range.start >= inode->i_size) { ret = -EINVAL; goto err; } - if (range.start >= inode->i_size) { - ret = -EINVAL; + if (range.len == 0) goto err; - } if (inode->i_size - range.start < range.len) { ret = -E2BIG; -- 2.27.0.383.g050319c2ae-goog
| |