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authorNikolay Borisov <nborisov@suse.com>2019-10-15 18:42:22 +0300
committerDavid Sterba <dsterba@suse.com>2019-11-18 17:51:47 +0100
commit260eb11bd42b4b5bcd671a1f8cb7d7b9a3e36b8d (patch)
treeee60e42615e230400649fe5247e8928ac142a4d1
parent336a0d8df1d9ec2480dc1790f0d7801c32318d1c (diff)
downloadlinux-260eb11bd42b4b5bcd671a1f8cb7d7b9a3e36b8d.tar.bz2
btrfs: Remove unused next_root_backup function
This function has been superseded by previous commits and is no longer used so just remove it. Signed-off-by: Nikolay Borisov <nborisov@suse.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
-rw-r--r--fs/btrfs/disk-io.c50
1 files changed, 0 insertions, 50 deletions
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index b23c9fbc2e89..99ba3278628c 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -1972,56 +1972,6 @@ static int read_backup_root(struct btrfs_fs_info *fs_info, u8 priority)
return backup_index;
}
-/*
- * this copies info out of the root backup array and back into
- * the in-memory super block. It is meant to help iterate through
- * the array, so you send it the number of backups you've already
- * tried and the last backup index you used.
- *
- * this returns -1 when it has tried all the backups
- */
-static noinline int next_root_backup(struct btrfs_fs_info *info,
- struct btrfs_super_block *super,
- int *num_backups_tried, int *backup_index)
-{
- struct btrfs_root_backup *root_backup;
- int newest = *backup_index;
-
- if (*num_backups_tried == 0) {
- newest = find_newest_super_backup(info);
- if (newest == -1)
- return -1;
-
- *backup_index = newest;
- *num_backups_tried = 1;
- } else if (*num_backups_tried == BTRFS_NUM_BACKUP_ROOTS) {
- /* we've tried all the backups, all done */
- return -1;
- } else {
- /* jump to the next oldest backup */
- newest = (*backup_index + BTRFS_NUM_BACKUP_ROOTS - 1) %
- BTRFS_NUM_BACKUP_ROOTS;
- *backup_index = newest;
- *num_backups_tried += 1;
- }
- root_backup = super->super_roots + newest;
-
- btrfs_set_super_generation(super,
- btrfs_backup_tree_root_gen(root_backup));
- btrfs_set_super_root(super, btrfs_backup_tree_root(root_backup));
- btrfs_set_super_root_level(super,
- btrfs_backup_tree_root_level(root_backup));
- btrfs_set_super_bytes_used(super, btrfs_backup_bytes_used(root_backup));
-
- /*
- * fixme: the total bytes and num_devices need to match or we should
- * need a fsck
- */
- btrfs_set_super_total_bytes(super, btrfs_backup_total_bytes(root_backup));
- btrfs_set_super_num_devices(super, btrfs_backup_num_devices(root_backup));
- return 0;
-}
-
/* helper to cleanup workers */
static void btrfs_stop_all_workers(struct btrfs_fs_info *fs_info)
{