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Fix btrfs_open_devices to deal with changes since the scan ioctls

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Devices can change after the scan ioctls are done, and btrfs_open_devices
needs to be able to verify them as they are opened and used by the FS.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
This commit is contained in:
Chris Mason
2008-05-13 16:03:06 -04:00
parent dfe2502068
commit a0af469b58
3 changed files with 63 additions and 15 deletions
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4
fs/btrfs/volumes.h
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@@ -71,16 +71,16 @@ struct btrfs_fs_devices {
/* the device with this id has the most recent coyp of the super */
u64 latest_devid;
u64 latest_trans;
u64 lowest_devid;
u64 num_devices;
u64 open_devices;
struct block_device *latest_bdev;
struct block_device *lowest_bdev;
/* all of the devices in the FS */
struct list_head devices;
/* devices not currently being allocated */
struct list_head alloc_list;
struct list_head list;
int mounted;
};
struct btrfs_bio_stripe {