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| author | Ilya Dryomov <idryomov@gmail.com> | 2013-09-01 18:56:44 +0300 |
|---|---|---|
| committer | Chris Mason <chris.mason@fusionio.com> | 2013-09-21 10:58:55 -0400 |
| commit | 55e50e458e760f4d0c183978dcc20b07a7f6e20e (patch) | |
| tree | ae6a83a83d3104f93a94b0db8a098a2c497895d5 | |
| parent | 83d4cfd4da57b6ff16296875a962de2158799de6 (diff) | |
| download | lwn-55e50e458e760f4d0c183978dcc20b07a7f6e20e.tar.gz lwn-55e50e458e760f4d0c183978dcc20b07a7f6e20e.zip | |
Btrfs: do not add replace target to the alloc_list
If replace was suspended by the umount, replace target device is added
to the fs_devices->alloc_list during a later mount. This is obviously
wrong. ->is_tgtdev_for_dev_replace is supposed to guard against that,
but ->is_tgtdev_for_dev_replace is (and can only ever be) initialized
*after* everything is opened and fs_devices lists are populated. Fix
this by checking the devid instead: for replace targets it's always
equal to BTRFS_DEV_REPLACE_DEVID.
Cc: Stefan Behrens <sbehrens@giantdisaster.de>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Reviewed-by: Stefan Behrens <sbehrens@giantdisaster.de>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
| -rw-r--r-- | fs/btrfs/volumes.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index 0db165ee4340..a0577352eb6e 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -796,7 +796,8 @@ static int __btrfs_open_devices(struct btrfs_fs_devices *fs_devices, fs_devices->rotating = 1; fs_devices->open_devices++; - if (device->writeable && !device->is_tgtdev_for_dev_replace) { + if (device->writeable && + device->devid != BTRFS_DEV_REPLACE_DEVID) { fs_devices->rw_devices++; list_add(&device->dev_alloc_list, &fs_devices->alloc_list); |