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-rw-r--r--fs/btrfs/block-group.h154
-rw-r--r--fs/btrfs/ctree.h148
-rw-r--r--fs/btrfs/disk-io.c1
-rw-r--r--fs/btrfs/extent-tree.c1
-rw-r--r--fs/btrfs/free-space-cache.c1
-rw-r--r--fs/btrfs/free-space-tree.c1
-rw-r--r--fs/btrfs/free-space-tree.h2
-rw-r--r--fs/btrfs/inode.c1
-rw-r--r--fs/btrfs/ioctl.c1
-rw-r--r--fs/btrfs/qgroup.c2
-rw-r--r--fs/btrfs/reada.c1
-rw-r--r--fs/btrfs/relocation.c1
-rw-r--r--fs/btrfs/scrub.c1
-rw-r--r--fs/btrfs/space-info.c1
-rw-r--r--fs/btrfs/super.c1
-rw-r--r--fs/btrfs/sysfs.c1
-rw-r--r--fs/btrfs/tests/btrfs-tests.c1
-rw-r--r--fs/btrfs/tests/free-space-tests.c1
-rw-r--r--fs/btrfs/tests/free-space-tree-tests.c1
-rw-r--r--fs/btrfs/transaction.c1
-rw-r--r--fs/btrfs/volumes.c1
21 files changed, 175 insertions, 148 deletions
diff --git a/fs/btrfs/block-group.h b/fs/btrfs/block-group.h
new file mode 100644
index 000000000000..054745007519
--- /dev/null
+++ b/fs/btrfs/block-group.h
@@ -0,0 +1,154 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#ifndef BTRFS_BLOCK_GROUP_H
+#define BTRFS_BLOCK_GROUP_H
+
+enum btrfs_disk_cache_state {
+ BTRFS_DC_WRITTEN,
+ BTRFS_DC_ERROR,
+ BTRFS_DC_CLEAR,
+ BTRFS_DC_SETUP,
+};
+
+struct btrfs_caching_control {
+ struct list_head list;
+ struct mutex mutex;
+ wait_queue_head_t wait;
+ struct btrfs_work work;
+ struct btrfs_block_group_cache *block_group;
+ u64 progress;
+ refcount_t count;
+};
+
+/* Once caching_thread() finds this much free space, it will wake up waiters. */
+#define CACHING_CTL_WAKE_UP SZ_2M
+
+struct btrfs_block_group_cache {
+ struct btrfs_key key;
+ struct btrfs_block_group_item item;
+ struct btrfs_fs_info *fs_info;
+ struct inode *inode;
+ spinlock_t lock;
+ u64 pinned;
+ u64 reserved;
+ u64 delalloc_bytes;
+ u64 bytes_super;
+ u64 flags;
+ u64 cache_generation;
+
+ /*
+ * If the free space extent count exceeds this number, convert the block
+ * group to bitmaps.
+ */
+ u32 bitmap_high_thresh;
+
+ /*
+ * If the free space extent count drops below this number, convert the
+ * block group back to extents.
+ */
+ u32 bitmap_low_thresh;
+
+ /*
+ * It is just used for the delayed data space allocation because
+ * only the data space allocation and the relative metadata update
+ * can be done cross the transaction.
+ */
+ struct rw_semaphore data_rwsem;
+
+ /* For raid56, this is a full stripe, without parity */
+ unsigned long full_stripe_len;
+
+ unsigned int ro;
+ unsigned int iref:1;
+ unsigned int has_caching_ctl:1;
+ unsigned int removed:1;
+
+ int disk_cache_state;
+
+ /* Cache tracking stuff */
+ int cached;
+ struct btrfs_caching_control *caching_ctl;
+ u64 last_byte_to_unpin;
+
+ struct btrfs_space_info *space_info;
+
+ /* Free space cache stuff */
+ struct btrfs_free_space_ctl *free_space_ctl;
+
+ /* Block group cache stuff */
+ struct rb_node cache_node;
+
+ /* For block groups in the same raid type */
+ struct list_head list;
+
+ /* Usage count */
+ atomic_t count;
+
+ /*
+ * List of struct btrfs_free_clusters for this block group.
+ * Today it will only have one thing on it, but that may change
+ */
+ struct list_head cluster_list;
+
+ /* For delayed block group creation or deletion of empty block groups */
+ struct list_head bg_list;
+
+ /* For read-only block groups */
+ struct list_head ro_list;
+
+ atomic_t trimming;
+
+ /* For dirty block groups */
+ struct list_head dirty_list;
+ struct list_head io_list;
+
+ struct btrfs_io_ctl io_ctl;
+
+ /*
+ * Incremented when doing extent allocations and holding a read lock
+ * on the space_info's groups_sem semaphore.
+ * Decremented when an ordered extent that represents an IO against this
+ * block group's range is created (after it's added to its inode's
+ * root's list of ordered extents) or immediately after the allocation
+ * if it's a metadata extent or fallocate extent (for these cases we
+ * don't create ordered extents).
+ */
+ atomic_t reservations;
+
+ /*
+ * Incremented while holding the spinlock *lock* by a task checking if
+ * it can perform a nocow write (incremented if the value for the *ro*
+ * field is 0). Decremented by such tasks once they create an ordered
+ * extent or before that if some error happens before reaching that step.
+ * This is to prevent races between block group relocation and nocow
+ * writes through direct IO.
+ */
+ atomic_t nocow_writers;
+
+ /* Lock for free space tree operations. */
+ struct mutex free_space_lock;
+
+ /*
+ * Does the block group need to be added to the free space tree?
+ * Protected by free_space_lock.
+ */
+ int needs_free_space;
+
+ /* Record locked full stripes for RAID5/6 block group */
+ struct btrfs_full_stripe_locks_tree full_stripe_locks_root;
+};
+
+#ifdef CONFIG_BTRFS_DEBUG
+static inline int btrfs_should_fragment_free_space(
+ struct btrfs_block_group_cache *block_group)
+{
+ struct btrfs_fs_info *fs_info = block_group->fs_info;
+
+ return (btrfs_test_opt(fs_info, FRAGMENT_METADATA) &&
+ block_group->flags & BTRFS_BLOCK_GROUP_METADATA) ||
+ (btrfs_test_opt(fs_info, FRAGMENT_DATA) &&
+ block_group->flags & BTRFS_BLOCK_GROUP_DATA);
+}
+#endif
+
+#endif /* BTRFS_BLOCK_GROUP_H */
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 88042497dbec..e95fdd1d9dd2 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -39,6 +39,7 @@ struct btrfs_transaction;
struct btrfs_pending_snapshot;
struct btrfs_delayed_ref_root;
struct btrfs_space_info;
+struct btrfs_block_group_cache;
extern struct kmem_cache *btrfs_trans_handle_cachep;
extern struct kmem_cache *btrfs_bit_radix_cachep;
extern struct kmem_cache *btrfs_path_cachep;
@@ -439,26 +440,6 @@ enum btrfs_caching_type {
BTRFS_CACHE_ERROR,
};
-enum btrfs_disk_cache_state {
- BTRFS_DC_WRITTEN,
- BTRFS_DC_ERROR,
- BTRFS_DC_CLEAR,
- BTRFS_DC_SETUP,
-};
-
-struct btrfs_caching_control {
- struct list_head list;
- struct mutex mutex;
- wait_queue_head_t wait;
- struct btrfs_work work;
- struct btrfs_block_group_cache *block_group;
- u64 progress;
- refcount_t count;
-};
-
-/* Once caching_thread() finds this much free space, it will wake up waiters. */
-#define CACHING_CTL_WAKE_UP SZ_2M
-
struct btrfs_io_ctl {
void *cur, *orig;
struct page *page;
@@ -481,120 +462,6 @@ struct btrfs_full_stripe_locks_tree {
struct mutex lock;
};
-struct btrfs_block_group_cache {
- struct btrfs_key key;
- struct btrfs_block_group_item item;
- struct btrfs_fs_info *fs_info;
- struct inode *inode;
- spinlock_t lock;
- u64 pinned;
- u64 reserved;
- u64 delalloc_bytes;
- u64 bytes_super;
- u64 flags;
- u64 cache_generation;
-
- /*
- * If the free space extent count exceeds this number, convert the block
- * group to bitmaps.
- */
- u32 bitmap_high_thresh;
-
- /*
- * If the free space extent count drops below this number, convert the
- * block group back to extents.
- */
- u32 bitmap_low_thresh;
-
- /*
- * It is just used for the delayed data space allocation because
- * only the data space allocation and the relative metadata update
- * can be done cross the transaction.
- */
- struct rw_semaphore data_rwsem;
-
- /* for raid56, this is a full stripe, without parity */
- unsigned long full_stripe_len;
-
- unsigned int ro;
- unsigned int iref:1;
- unsigned int has_caching_ctl:1;
- unsigned int removed:1;
-
- int disk_cache_state;
-
- /* cache tracking stuff */
- int cached;
- struct btrfs_caching_control *caching_ctl;
- u64 last_byte_to_unpin;
-
- struct btrfs_space_info *space_info;
-
- /* free space cache stuff */
- struct btrfs_free_space_ctl *free_space_ctl;
-
- /* block group cache stuff */
- struct rb_node cache_node;
-
- /* for block groups in the same raid type */
- struct list_head list;
-
- /* usage count */
- atomic_t count;
-
- /* List of struct btrfs_free_clusters for this block group.
- * Today it will only have one thing on it, but that may change
- */
- struct list_head cluster_list;
-
- /* For delayed block group creation or deletion of empty block groups */
- struct list_head bg_list;
-
- /* For read-only block groups */
- struct list_head ro_list;
-
- atomic_t trimming;
-
- /* For dirty block groups */
- struct list_head dirty_list;
- struct list_head io_list;
-
- struct btrfs_io_ctl io_ctl;
-
- /*
- * Incremented when doing extent allocations and holding a read lock
- * on the space_info's groups_sem semaphore.
- * Decremented when an ordered extent that represents an IO against this
- * block group's range is created (after it's added to its inode's
- * root's list of ordered extents) or immediately after the allocation
- * if it's a metadata extent or fallocate extent (for these cases we
- * don't create ordered extents).
- */
- atomic_t reservations;
-
- /*
- * Incremented while holding the spinlock *lock* by a task checking if
- * it can perform a nocow write (incremented if the value for the *ro*
- * field is 0). Decremented by such tasks once they create an ordered
- * extent or before that if some error happens before reaching that step.
- * This is to prevent races between block group relocation and nocow
- * writes through direct IO.
- */
- atomic_t nocow_writers;
-
- /* Lock for free space tree operations. */
- struct mutex free_space_lock;
-
- /*
- * Does the block group need to be added to the free space tree?
- * Protected by free_space_lock.
- */
- int needs_free_space;
-
- /* Record locked full stripes for RAID5/6 block group */
- struct btrfs_full_stripe_locks_tree full_stripe_locks_root;
-};
-
/* delayed seq elem */
struct seq_list {
struct list_head list;
@@ -1387,19 +1254,6 @@ static inline u32 BTRFS_MAX_XATTR_SIZE(const struct btrfs_fs_info *info)
btrfs_clear_opt(fs_info->mount_opt, opt); \
}
-#ifdef CONFIG_BTRFS_DEBUG
-static inline int
-btrfs_should_fragment_free_space(struct btrfs_block_group_cache *block_group)
-{
- struct btrfs_fs_info *fs_info = block_group->fs_info;
-
- return (btrfs_test_opt(fs_info, FRAGMENT_METADATA) &&
- block_group->flags & BTRFS_BLOCK_GROUP_METADATA) ||
- (btrfs_test_opt(fs_info, FRAGMENT_DATA) &&
- block_group->flags & BTRFS_BLOCK_GROUP_DATA);
-}
-#endif
-
/*
* Requests for changes that need to be done during transaction commit.
*
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 97beb351a10c..589405eeb80f 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -40,6 +40,7 @@
#include "compression.h"
#include "tree-checker.h"
#include "ref-verify.h"
+#include "block-group.h"
#define BTRFS_SUPER_FLAG_SUPP (BTRFS_HEADER_FLAG_WRITTEN |\
BTRFS_HEADER_FLAG_RELOC |\
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 0bb095bda01b..f28697131f22 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -32,6 +32,7 @@
#include "space-info.h"
#include "block-rsv.h"
#include "delalloc-space.h"
+#include "block-group.h"
#undef SCRAMBLE_DELAYED_REFS
diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c
index 92cb06dd94d3..faaf57a7c289 100644
--- a/fs/btrfs/free-space-cache.c
+++ b/fs/btrfs/free-space-cache.c
@@ -20,6 +20,7 @@
#include "volumes.h"
#include "space-info.h"
#include "delalloc-space.h"
+#include "block-group.h"
#define BITS_PER_BITMAP (PAGE_SIZE * 8UL)
#define MAX_CACHE_BYTES_PER_GIG SZ_32K
diff --git a/fs/btrfs/free-space-tree.c b/fs/btrfs/free-space-tree.c
index f5dc115ebba0..48a03f5240f5 100644
--- a/fs/btrfs/free-space-tree.c
+++ b/fs/btrfs/free-space-tree.c
@@ -10,6 +10,7 @@
#include "locking.h"
#include "free-space-tree.h"
#include "transaction.h"
+#include "block-group.h"
static int __add_block_group_free_space(struct btrfs_trans_handle *trans,
struct btrfs_block_group_cache *block_group,
diff --git a/fs/btrfs/free-space-tree.h b/fs/btrfs/free-space-tree.h
index 22b7602bde25..360d50e1cdea 100644
--- a/fs/btrfs/free-space-tree.h
+++ b/fs/btrfs/free-space-tree.h
@@ -6,6 +6,8 @@
#ifndef BTRFS_FREE_SPACE_TREE_H
#define BTRFS_FREE_SPACE_TREE_H
+struct btrfs_caching_control;
+
/*
* The default size for new free space bitmap items. The last bitmap in a block
* group may be truncated, and none of the free space tree code assumes that
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 20963b6567ae..612c25aac15c 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -47,6 +47,7 @@
#include "props.h"
#include "qgroup.h"
#include "delalloc-space.h"
+#include "block-group.h"
struct btrfs_iget_args {
struct btrfs_key *location;
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index ccac62d40dd2..b431f7877e88 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -45,6 +45,7 @@
#include "compression.h"
#include "space-info.h"
#include "delalloc-space.h"
+#include "block-group.h"
#ifdef CONFIG_64BIT
/* If we have a 32-bit userspace and 64-bit kernel, then the UAPI
diff --git a/fs/btrfs/qgroup.c b/fs/btrfs/qgroup.c
index f8a3c1b0a15a..a960e33525ba 100644
--- a/fs/btrfs/qgroup.c
+++ b/fs/btrfs/qgroup.c
@@ -21,7 +21,7 @@
#include "backref.h"
#include "extent_io.h"
#include "qgroup.h"
-
+#include "block-group.h"
/* TODO XXX FIXME
* - subvol delete -> delete when ref goes to 0? delete limits also?
diff --git a/fs/btrfs/reada.c b/fs/btrfs/reada.c
index bb5bd49573b4..0b034c494355 100644
--- a/fs/btrfs/reada.c
+++ b/fs/btrfs/reada.c
@@ -14,6 +14,7 @@
#include "disk-io.h"
#include "transaction.h"
#include "dev-replace.h"
+#include "block-group.h"
#undef DEBUG
diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c
index 7ec632d4d960..2f0e25afa486 100644
--- a/fs/btrfs/relocation.c
+++ b/fs/btrfs/relocation.c
@@ -21,6 +21,7 @@
#include "qgroup.h"
#include "print-tree.h"
#include "delalloc-space.h"
+#include "block-group.h"
/*
* backref_node, mapping_node and tree_block start with this
diff --git a/fs/btrfs/scrub.c b/fs/btrfs/scrub.c
index 0c99cf9fb595..f7d4e03f4c5d 100644
--- a/fs/btrfs/scrub.c
+++ b/fs/btrfs/scrub.c
@@ -18,6 +18,7 @@
#include "check-integrity.h"
#include "rcu-string.h"
#include "raid56.h"
+#include "block-group.h"
/*
* This is only the first step towards a full-features scrub. It reads all
diff --git a/fs/btrfs/space-info.c b/fs/btrfs/space-info.c
index ab7b9ec4c240..9dbb9c5f82b1 100644
--- a/fs/btrfs/space-info.c
+++ b/fs/btrfs/space-info.c
@@ -8,6 +8,7 @@
#include "ordered-data.h"
#include "transaction.h"
#include "math.h"
+#include "block-group.h"
u64 btrfs_space_info_used(struct btrfs_space_info *s_info,
bool may_use_included)
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index 10bc7e6cca75..16c7af333d3a 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -44,6 +44,7 @@
#include "backref.h"
#include "space-info.h"
#include "tests/btrfs-tests.h"
+#include "block-group.h"
#include "qgroup.h"
#define CREATE_TRACE_POINTS
diff --git a/fs/btrfs/sysfs.c b/fs/btrfs/sysfs.c
index 9539f8143b7a..271e7e714920 100644
--- a/fs/btrfs/sysfs.c
+++ b/fs/btrfs/sysfs.c
@@ -17,6 +17,7 @@
#include "sysfs.h"
#include "volumes.h"
#include "space-info.h"
+#include "block-group.h"
static inline struct btrfs_fs_info *to_fs_info(struct kobject *kobj);
static inline struct btrfs_fs_devices *to_fs_devs(struct kobject *kobj);
diff --git a/fs/btrfs/tests/btrfs-tests.c b/fs/btrfs/tests/btrfs-tests.c
index 1e3ba4949399..b5e80563efaa 100644
--- a/fs/btrfs/tests/btrfs-tests.c
+++ b/fs/btrfs/tests/btrfs-tests.c
@@ -15,6 +15,7 @@
#include "../volumes.h"
#include "../disk-io.h"
#include "../qgroup.h"
+#include "../block-group.h"
static struct vfsmount *test_mnt = NULL;
diff --git a/fs/btrfs/tests/free-space-tests.c b/fs/btrfs/tests/free-space-tests.c
index af89f66f9e63..43ec7060fcd2 100644
--- a/fs/btrfs/tests/free-space-tests.c
+++ b/fs/btrfs/tests/free-space-tests.c
@@ -8,6 +8,7 @@
#include "../ctree.h"
#include "../disk-io.h"
#include "../free-space-cache.h"
+#include "../block-group.h"
#define BITS_PER_BITMAP (PAGE_SIZE * 8UL)
diff --git a/fs/btrfs/tests/free-space-tree-tests.c b/fs/btrfs/tests/free-space-tree-tests.c
index a90dad166971..bc92df977630 100644
--- a/fs/btrfs/tests/free-space-tree-tests.c
+++ b/fs/btrfs/tests/free-space-tree-tests.c
@@ -9,6 +9,7 @@
#include "../disk-io.h"
#include "../free-space-tree.h"
#include "../transaction.h"
+#include "../block-group.h"
struct free_space_extent {
u64 start;
diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c
index e3adb714c04b..2e3f6778bfa3 100644
--- a/fs/btrfs/transaction.c
+++ b/fs/btrfs/transaction.c
@@ -19,6 +19,7 @@
#include "volumes.h"
#include "dev-replace.h"
#include "qgroup.h"
+#include "block-group.h"
#define BTRFS_ROOT_TRANS_TAG 0
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index ef3e5b4f88be..cb9dcdffe434 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -29,6 +29,7 @@
#include "sysfs.h"
#include "tree-checker.h"
#include "space-info.h"
+#include "block-group.h"
const struct btrfs_raid_attr btrfs_raid_array[BTRFS_NR_RAID_TYPES] = {
[BTRFS_RAID_RAID10] = {
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-12 10:53:40 +0300