diff options
author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-11-21 12:21:53 +0300 |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-11-21 12:21:53 +0300 |
commit | 05df6ab8eba625a1d97eb67ee06d786b8e460685 (patch) | |
tree | 7fed59b7f49fd8d816475ca6b20c95c7f837ca6f /fs/btrfs/zoned.c | |
parent | 1d926e259d8f8195fdfaeea7951149001894b473 (diff) | |
parent | eb7081409f94a9a8608593d0fb63a1aa3d6f95d8 (diff) | |
download | linux-05df6ab8eba625a1d97eb67ee06d786b8e460685.tar.xz |
Merge 6.1-rc6 into driver-core-next
We need the kernfs changes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs/btrfs/zoned.c')
-rw-r--r-- | fs/btrfs/zoned.c | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/fs/btrfs/zoned.c b/fs/btrfs/zoned.c index e2d073b08a7d..1912abf6d020 100644 --- a/fs/btrfs/zoned.c +++ b/fs/btrfs/zoned.c @@ -639,6 +639,46 @@ void btrfs_destroy_dev_zone_info(struct btrfs_device *device) device->zone_info = NULL; } +struct btrfs_zoned_device_info *btrfs_clone_dev_zone_info(struct btrfs_device *orig_dev) +{ + struct btrfs_zoned_device_info *zone_info; + + zone_info = kmemdup(orig_dev->zone_info, sizeof(*zone_info), GFP_KERNEL); + if (!zone_info) + return NULL; + + zone_info->seq_zones = bitmap_zalloc(zone_info->nr_zones, GFP_KERNEL); + if (!zone_info->seq_zones) + goto out; + + bitmap_copy(zone_info->seq_zones, orig_dev->zone_info->seq_zones, + zone_info->nr_zones); + + zone_info->empty_zones = bitmap_zalloc(zone_info->nr_zones, GFP_KERNEL); + if (!zone_info->empty_zones) + goto out; + + bitmap_copy(zone_info->empty_zones, orig_dev->zone_info->empty_zones, + zone_info->nr_zones); + + zone_info->active_zones = bitmap_zalloc(zone_info->nr_zones, GFP_KERNEL); + if (!zone_info->active_zones) + goto out; + + bitmap_copy(zone_info->active_zones, orig_dev->zone_info->active_zones, + zone_info->nr_zones); + zone_info->zone_cache = NULL; + + return zone_info; + +out: + bitmap_free(zone_info->seq_zones); + bitmap_free(zone_info->empty_zones); + bitmap_free(zone_info->active_zones); + kfree(zone_info); + return NULL; +} + int btrfs_get_dev_zone(struct btrfs_device *device, u64 pos, struct blk_zone *zone) { |