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btrfs: use ioctl args support mask for subvolume create/delete

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Using the defined mask instead of flag enumeration in the ioctl handler
is preferred. No functional changes.

Reviewed-by: Marcos Paulo de Souza <mpdesouza@suse.com>
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
David Sterba 2020-02-21 13:24:37 +01:00
parent eed0269053
commit 673990dba3
1 changed files with 1 additions and 3 deletions
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4
fs/btrfs/ioctl.c
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@ -1838,9 +1838,7 @@ static noinline int btrfs_ioctl_snap_create_v2(struct file *file,
return PTR_ERR(vol_args);
vol_args->name[BTRFS_SUBVOL_NAME_MAX] = '\0';
if (vol_args->flags &
~(BTRFS_SUBVOL_CREATE_ASYNC | BTRFS_SUBVOL_RDONLY |
BTRFS_SUBVOL_QGROUP_INHERIT)) {
if (vol_args->flags & ~BTRFS_SUBVOL_CREATE_ARGS_MASK) {
ret = -EOPNOTSUPP;
goto free_args;
}