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authorStefan Behrens <sbehrens@giantdisaster.de>2012-11-05 20:33:06 +0400
committerJosef Bacik <jbacik@fusionio.com>2012-12-13 02:15:41 +0400
commite93c89c1aaaaaec3487c4c18dd02360371790722 (patch)
tree359c310c736d0db5cfd724c628fdb9f2f680a3d3 /fs/btrfs/dev-replace.h
parentff023aac31198e88507d626825379b28ea481d4d (diff)
downloadlinux-e93c89c1aaaaaec3487c4c18dd02360371790722.tar.xz
Btrfs: add new sources for device replace code
This adds a new file to the sources together with the header file and the changes to ioctl.h and ctree.h that are required by the new C source file. Additionally, 4 new functions are added to volume.c that deal with device creation and destruction. Signed-off-by: Stefan Behrens <sbehrens@giantdisaster.de> Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Diffstat (limited to 'fs/btrfs/dev-replace.h')
-rw-r--r--fs/btrfs/dev-replace.h18
1 files changed, 18 insertions, 0 deletions
diff --git a/fs/btrfs/dev-replace.h b/fs/btrfs/dev-replace.h
index 1fb5c89037ee..20035cbbf021 100644
--- a/fs/btrfs/dev-replace.h
+++ b/fs/btrfs/dev-replace.h
@@ -19,6 +19,24 @@
#if !defined(__BTRFS_DEV_REPLACE__)
#define __BTRFS_DEV_REPLACE__
+struct btrfs_ioctl_dev_replace_args;
+
+int btrfs_init_dev_replace(struct btrfs_fs_info *fs_info);
+int btrfs_run_dev_replace(struct btrfs_trans_handle *trans,
+ struct btrfs_fs_info *fs_info);
+void btrfs_after_dev_replace_commit(struct btrfs_fs_info *fs_info);
+int btrfs_dev_replace_start(struct btrfs_root *root,
+ struct btrfs_ioctl_dev_replace_args *args);
+void btrfs_dev_replace_status(struct btrfs_fs_info *fs_info,
+ struct btrfs_ioctl_dev_replace_args *args);
+int btrfs_dev_replace_cancel(struct btrfs_fs_info *fs_info,
+ struct btrfs_ioctl_dev_replace_args *args);
+void btrfs_dev_replace_suspend_for_unmount(struct btrfs_fs_info *fs_info);
+int btrfs_resume_dev_replace_async(struct btrfs_fs_info *fs_info);
+int btrfs_dev_replace_is_ongoing(struct btrfs_dev_replace *dev_replace);
+void btrfs_dev_replace_lock(struct btrfs_dev_replace *dev_replace);
+void btrfs_dev_replace_unlock(struct btrfs_dev_replace *dev_replace);
+
static inline void btrfs_dev_replace_stats_inc(atomic64_t *stat_value)
{
atomic64_inc(stat_value);