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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-18 17:39:57 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-18 17:39:57 +0000
commitdc50eab76b709d68175a358d6e23a5a3890764d3 (patch)
treec754d0390db060af0213ff994f0ac310e4cfd6e9 /fs/btrfs/volumes.h
parentAdding debian version 6.6.15-2. (diff)
downloadlinux-dc50eab76b709d68175a358d6e23a5a3890764d3.tar.xz
linux-dc50eab76b709d68175a358d6e23a5a3890764d3.zip
Merging upstream version 6.7.7.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'fs/btrfs/volumes.h')
-rw-r--r--fs/btrfs/volumes.h45
1 files changed, 31 insertions, 14 deletions
diff --git a/fs/btrfs/volumes.h b/fs/btrfs/volumes.h
index 2128a032c3..9cc374864a 100644
--- a/fs/btrfs/volumes.h
+++ b/fs/btrfs/volumes.h
@@ -90,13 +90,11 @@ struct btrfs_device {
u64 generation;
+ struct bdev_handle *bdev_handle;
struct block_device *bdev;
struct btrfs_zoned_device_info *zone_info;
- /* block device holder for blkdev_get/put */
- void *holder;
-
/*
* Device's major-minor number. Must be set even if the device is not
* opened (bdev == NULL), unless the device is missing.
@@ -290,6 +288,19 @@ struct btrfs_fs_devices {
* - Following shall be true at all times:
* - metadata_uuid == btrfs_header::fsid
* - metadata_uuid == btrfs_dev_item::fsid
+ *
+ * - Relations between fsid and metadata_uuid in sb and fs_devices:
+ * - Normal:
+ * fs_devices->fsid == fs_devices->metadata_uuid == sb->fsid
+ * sb->metadata_uuid == 0
+ *
+ * - When the BTRFS_FEATURE_INCOMPAT_METADATA_UUID flag is set:
+ * fs_devices->fsid == sb->fsid
+ * fs_devices->metadata_uuid == sb->metadata_uuid
+ *
+ * - When in-memory fs_devices->temp_fsid is true
+ * fs_devices->fsid = random
+ * fs_devices->metadata_uuid == sb->fsid
*/
u8 metadata_uuid[BTRFS_FSID_SIZE];
@@ -353,9 +364,10 @@ struct btrfs_fs_devices {
bool rotating;
/* Devices support TRIM/discard commands. */
bool discardable;
- bool fsid_change;
/* The filesystem is a seed filesystem. */
bool seeding;
+ /* The mount needs to use a randomly generated fsid. */
+ bool temp_fsid;
struct btrfs_fs_info *fs_info;
/* sysfs kobjects */
@@ -381,12 +393,12 @@ struct btrfs_fs_devices {
struct btrfs_io_stripe {
struct btrfs_device *dev;
- union {
- /* Block mapping */
- u64 physical;
- /* For the endio handler */
- struct btrfs_io_context *bioc;
- };
+ /* Block mapping. */
+ u64 physical;
+ u64 length;
+ bool is_scrub;
+ /* For the endio handler. */
+ struct btrfs_io_context *bioc;
};
struct btrfs_discard_stripe {
@@ -419,6 +431,11 @@ struct btrfs_io_context {
atomic_t error;
u16 max_errors;
+ u64 logical;
+ u64 size;
+ /* Raid stripe tree ordered entry. */
+ struct list_head rst_ordered_entry;
+
/*
* The total number of stripes, including the extra duplicated
* stripe for replace.
@@ -596,8 +613,7 @@ void btrfs_put_bioc(struct btrfs_io_context *bioc);
int btrfs_map_block(struct btrfs_fs_info *fs_info, enum btrfs_map_op op,
u64 logical, u64 *length,
struct btrfs_io_context **bioc_ret,
- struct btrfs_io_stripe *smap, int *mirror_num_ret,
- int need_raid_map);
+ struct btrfs_io_stripe *smap, int *mirror_num_ret);
int btrfs_map_repair_block(struct btrfs_fs_info *fs_info,
struct btrfs_io_stripe *smap, u64 logical,
u32 length, int mirror_num);
@@ -611,7 +627,8 @@ struct btrfs_block_group *btrfs_create_chunk(struct btrfs_trans_handle *trans,
void btrfs_mapping_tree_free(struct extent_map_tree *tree);
int btrfs_open_devices(struct btrfs_fs_devices *fs_devices,
blk_mode_t flags, void *holder);
-struct btrfs_device *btrfs_scan_one_device(const char *path, blk_mode_t flags);
+struct btrfs_device *btrfs_scan_one_device(const char *path, blk_mode_t flags,
+ bool mount_arg_dev);
int btrfs_forget_devices(dev_t devt);
void btrfs_close_devices(struct btrfs_fs_devices *fs_devices);
void btrfs_free_extra_devids(struct btrfs_fs_devices *fs_devices);
@@ -629,7 +646,7 @@ struct btrfs_device *btrfs_alloc_device(struct btrfs_fs_info *fs_info,
void btrfs_put_dev_args_from_path(struct btrfs_dev_lookup_args *args);
int btrfs_rm_device(struct btrfs_fs_info *fs_info,
struct btrfs_dev_lookup_args *args,
- struct block_device **bdev, void **holder);
+ struct bdev_handle **bdev_handle);
void __exit btrfs_cleanup_fs_uuids(void);
int btrfs_num_copies(struct btrfs_fs_info *fs_info, u64 logical, u64 len);
int btrfs_grow_device(struct btrfs_trans_handle *trans,