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authorStefan Behrens <sbehrens@giantdisaster.de>2012-11-05 14:42:30 +0100
committerJosef Bacik <jbacik@fusionio.com>2012-12-12 17:15:33 -0500
commit7ba15b7d211846c187a7c5dc75a5964476f8bc89 (patch)
tree7af9534b30451d08e4dca7e8f4076d09773cfeb8 /fs/btrfs/volumes.h
parentbeaf8ab3afef27ed81255d9808b67f6d390ca06f (diff)
downloadlinux-7ba15b7d211846c187a7c5dc75a5964476f8bc89.tar.bz2
Btrfs: add two more find_device() methods
The new function btrfs_find_device_missing_or_by_path() will be used for the device replace procedure. This function itself calls the second new function btrfs_find_device_by_path(). Unfortunately, it is not possible to currently make the rest of the code use these functions as well, since all functions that look similar at first view are all a little bit different in what they are doing. But in the future, new code could benefit from these two new functions, and currently, device replace uses them. Signed-off-by: Stefan Behrens <sbehrens@giantdisaster.de> Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Diffstat (limited to 'fs/btrfs/volumes.h')
-rw-r--r--fs/btrfs/volumes.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/btrfs/volumes.h b/fs/btrfs/volumes.h
index 1789cda57efb..657bb12b3069 100644
--- a/fs/btrfs/volumes.h
+++ b/fs/btrfs/volumes.h
@@ -268,6 +268,11 @@ int btrfs_scan_one_device(const char *path, fmode_t flags, void *holder,
struct btrfs_fs_devices **fs_devices_ret);
int btrfs_close_devices(struct btrfs_fs_devices *fs_devices);
void btrfs_close_extra_devices(struct btrfs_fs_devices *fs_devices);
+int btrfs_find_device_missing_or_by_path(struct btrfs_root *root,
+ char *device_path,
+ struct btrfs_device **device);
+int btrfs_find_device_by_path(struct btrfs_root *root, char *device_path,
+ struct btrfs_device **device);
int btrfs_add_device(struct btrfs_trans_handle *trans,
struct btrfs_root *root,
struct btrfs_device *device);