diff options
| author | harshads <harshads@google.com> | 2017-10-29 16:38:46 +0300 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2017-10-29 16:38:46 +0300 |
| commit | d77147ff443b255d82c907a632c825b2cc610b10 (patch) | |
| tree | 4ebdc728e2e8bf8d25f6b74f95120da8f2392f8d /fs/ext4/ioctl.c | |
| parent | d98bf8cd11985256b96d610453baf1ff8814ff87 (diff) | |
| download | linux-d77147ff443b255d82c907a632c825b2cc610b10.tar.xz | |
ext4: add support for online resizing with bigalloc
This patch adds support for online resizing on bigalloc file system by
implementing EXT4_IOC_RESIZE_FS ioctl. Old resize interfaces (add
block groups and extend last block group) are left untouched. Tests
performed with cluster sizes of 1, 2, 4 and 8 blocks (of size 4k) per
cluster. I will add these tests to xfstests.
Signed-off-by: Harshad Shirwadkar <harshads@google.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'fs/ext4/ioctl.c')
| -rw-r--r-- | fs/ext4/ioctl.c | 6 |
1 files changed, 0 insertions, 6 deletions
diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c index b0b754b37c36..144bbda2b808 100644 --- a/fs/ext4/ioctl.c +++ b/fs/ext4/ioctl.c @@ -871,12 +871,6 @@ group_add_out: int err = 0, err2 = 0; ext4_group_t o_group = EXT4_SB(sb)->s_groups_count; - if (ext4_has_feature_bigalloc(sb)) { - ext4_msg(sb, KERN_ERR, - "Online resizing not (yet) supported with bigalloc"); - return -EOPNOTSUPP; - } - if (copy_from_user(&n_blocks_count, (__u64 __user *)arg, sizeof(__u64))) { return -EFAULT; |