Btrfs: Fixes for 2.6.28-rc API changes
* open/close_bdev_excl -> open/close_bdev_exclusive
* blkdev_issue_discard takes a GFP mask now
* Fix blkdev_issue_discard usage now that it is enabled
Signed-off-by: Chris Mason <chris.mason@oracle.com>
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index ecf0633..c3ee63f 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -85,7 +85,7 @@
dev = list_entry(fs_devices->devices.next,
struct btrfs_device, dev_list);
if (dev->bdev) {
- close_bdev_excl(dev->bdev);
+ close_bdev_exclusive(dev->bdev, dev->mode);
fs_devices->open_devices--;
}
fs_devices->num_devices--;
@@ -317,7 +317,7 @@
continue;
if (device->bdev) {
- close_bdev_excl(device->bdev);
+ close_bdev_exclusive(device->bdev, device->mode);
device->bdev = NULL;
fs_devices->open_devices--;
}
@@ -356,7 +356,7 @@
list_for_each(cur, &fs_devices->devices) {
device = list_entry(cur, struct btrfs_device, dev_list);
if (device->bdev) {
- close_bdev_excl(device->bdev);
+ close_bdev_exclusive(device->bdev, device->mode);
fs_devices->open_devices--;
}
if (device->writeable) {
@@ -391,7 +391,8 @@
return ret;
}
-int __btrfs_open_devices(struct btrfs_fs_devices *fs_devices, void *holder)
+int __btrfs_open_devices(struct btrfs_fs_devices *fs_devices,
+ int flags, void *holder)
{
struct block_device *bdev;
struct list_head *head = &fs_devices->devices;
@@ -413,7 +414,7 @@
if (!device->name)
continue;
- bdev = open_bdev_excl(device->name, MS_RDONLY, holder);
+ bdev = open_bdev_exclusive(device->name, flags, holder);
if (IS_ERR(bdev)) {
printk("open %s failed\n", device->name);
goto error;
@@ -453,6 +454,8 @@
device->bdev = bdev;
device->in_fs_metadata = 0;
+ device->mode = flags;
+
fs_devices->open_devices++;
if (device->writeable) {
fs_devices->rw_devices++;
@@ -464,7 +467,7 @@
error_brelse:
brelse(bh);
error_close:
- close_bdev_excl(bdev);
+ close_bdev_exclusive(bdev, MS_RDONLY);
error:
continue;
}
@@ -496,7 +499,7 @@
ret = 0;
}
} else {
- ret = __btrfs_open_devices(fs_devices, holder);
+ ret = __btrfs_open_devices(fs_devices, flags, holder);
}
mutex_unlock(&uuid_mutex);
return ret;
@@ -514,7 +517,7 @@
mutex_lock(&uuid_mutex);
- bdev = open_bdev_excl(path, flags, holder);
+ bdev = open_bdev_exclusive(path, flags, holder);
if (IS_ERR(bdev)) {
ret = PTR_ERR(bdev);
@@ -551,7 +554,7 @@
error_brelse:
brelse(bh);
error_close:
- close_bdev_excl(bdev);
+ close_bdev_exclusive(bdev, flags);
error:
mutex_unlock(&uuid_mutex);
return ret;
@@ -1003,7 +1006,7 @@
goto out;
}
} else {
- bdev = open_bdev_excl(device_path, MS_RDONLY,
+ bdev = open_bdev_exclusive(device_path, MS_RDONLY,
root->fs_info->bdev_holder);
if (IS_ERR(bdev)) {
ret = PTR_ERR(bdev);
@@ -1073,10 +1076,10 @@
BUG_ON(device->writeable);
brelse(bh);
if (bdev)
- close_bdev_excl(bdev);
+ close_bdev_exclusive(bdev, MS_RDONLY);
if (device->bdev) {
- close_bdev_excl(device->bdev);
+ close_bdev_exclusive(device->bdev, device->mode);
device->bdev = NULL;
device->fs_devices->open_devices--;
}
@@ -1112,11 +1115,11 @@
if (device->bdev) {
/* one close for the device struct or super_block */
- close_bdev_excl(device->bdev);
+ close_bdev_exclusive(device->bdev, device->mode);
}
if (bdev) {
/* one close for us */
- close_bdev_excl(bdev);
+ close_bdev_exclusive(bdev, MS_RDONLY);
}
kfree(device->name);
kfree(device);
@@ -1127,7 +1130,7 @@
brelse(bh);
error_close:
if (bdev)
- close_bdev_excl(bdev);
+ close_bdev_exclusive(bdev, MS_RDONLY);
out:
mutex_unlock(&root->fs_info->volume_mutex);
mutex_unlock(&uuid_mutex);
@@ -1272,7 +1275,7 @@
if ((sb->s_flags & MS_RDONLY) && !root->fs_info->fs_devices->seeding)
return -EINVAL;
- bdev = open_bdev_excl(device_path, 0, root->fs_info->bdev_holder);
+ bdev = open_bdev_exclusive(device_path, 0, root->fs_info->bdev_holder);
if (!bdev) {
return -EIO;
}
@@ -1331,6 +1334,7 @@
device->dev_root = root->fs_info->dev_root;
device->bdev = bdev;
device->in_fs_metadata = 1;
+ device->mode = 0;
set_blocksize(device->bdev, 4096);
if (seeding_dev) {
@@ -1379,7 +1383,7 @@
mutex_unlock(&root->fs_info->volume_mutex);
return ret;
error:
- close_bdev_excl(bdev);
+ close_bdev_exclusive(bdev, 0);
if (seeding_dev) {
mutex_unlock(&uuid_mutex);
up_write(&sb->s_umount);
@@ -2907,7 +2911,8 @@
goto out;
}
- ret = __btrfs_open_devices(fs_devices, root->fs_info->bdev_holder);
+ ret = __btrfs_open_devices(fs_devices, MS_RDONLY,
+ root->fs_info->bdev_holder);
if (ret)
goto out;
