* [PATCH 2/3] Btrfs: fix resize a readonly device
@ 2012-12-21 9:19 Miao Xie
0 siblings, 0 replies; only message in thread
From: Miao Xie @ 2012-12-21 9:19 UTC (permalink / raw)
To: Linux Btrfs
We should not resize a readonly device, fix it.
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
---
fs/btrfs/ioctl.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 679b82c..668475c 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -1364,6 +1364,7 @@ static noinline int btrfs_ioctl_resize(struct file *file,
printk(KERN_INFO "btrfs: resizing devid %llu\n",
(unsigned long long)devid);
}
+
device = btrfs_find_device(root->fs_info, devid, NULL, NULL);
if (!device) {
printk(KERN_INFO "btrfs: resizer unable to find device %llu\n",
@@ -1371,9 +1372,10 @@ static noinline int btrfs_ioctl_resize(struct file *file,
ret = -EINVAL;
goto out_free;
}
- if (device->fs_devices && device->fs_devices->seeding) {
+
+ if (!device->writeable) {
printk(KERN_INFO "btrfs: resizer unable to apply on "
- "seeding device %llu\n",
+ "readonly device %llu\n",
(unsigned long long)devid);
ret = -EINVAL;
goto out_free;
--
1.7.11.7
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2012-12-21 9:19 [PATCH 2/3] Btrfs: fix resize a readonly device Miao Xie
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