These were renamed and exported to facilitate logical migration of
different code chunks into block-group.c. Now that all the users are in
one file go ahead and rename them back, move the code around, and make
them static.
Signed-off-by: Josef Bacik <josef@xxxxxxxxxxxxxx>
---
fs/btrfs/block-group.c | 176 ++++++++++++++++++++---------------------
fs/btrfs/block-group.h | 6 --
2 files changed, 88 insertions(+), 94 deletions(-)
diff --git a/fs/btrfs/block-group.c b/fs/btrfs/block-group.c
index 451dfd64ed36..0df939285702 100644
--- a/fs/btrfs/block-group.c
+++ b/fs/btrfs/block-group.c
@@ -21,7 +21,7 @@
*
* should be called with balance_lock held
*/
-u64 btrfs_get_restripe_target(struct btrfs_fs_info *fs_info, u64 flags)
+static u64 get_restripe_target(struct btrfs_fs_info *fs_info, u64 flags)
{
struct btrfs_balance_control *bctl = fs_info->balance_ctl;
u64 target = 0;
@@ -62,7 +62,7 @@ static u64 btrfs_reduce_alloc_profile(struct btrfs_fs_info *fs_info, u64 flags)
* try to reduce to the target profile
*/
spin_lock(&fs_info->balance_lock);
- target = btrfs_get_restripe_target(fs_info, flags);
+ target = get_restripe_target(fs_info, flags);
if (target) {
/* pick target profile only if it's already available */
if ((flags & target) & BTRFS_EXTENDED_PROFILE_MASK) {
@@ -422,7 +422,7 @@ int btrfs_wait_block_group_cache_done(struct btrfs_block_group_cache *cache)
}
#ifdef CONFIG_BTRFS_DEBUG
-void btrfs_fragment_free_space(struct btrfs_block_group_cache *block_group)
+static void fragment_free_space(struct btrfs_block_group_cache *block_group)
{
struct btrfs_fs_info *fs_info = block_group->fs_info;
u64 start = block_group->key.objectid;
@@ -660,7 +660,7 @@ static noinline void caching_thread(struct btrfs_work *work)
block_group->space_info->bytes_used += bytes_used >> 1;
spin_unlock(&block_group->lock);
spin_unlock(&block_group->space_info->lock);
- btrfs_fragment_free_space(block_group);
+ fragment_free_space(block_group);
}
#endif
@@ -767,7 +767,7 @@ int btrfs_cache_block_group(struct btrfs_block_group_cache *cache,
cache->space_info->bytes_used += bytes_used >> 1;
spin_unlock(&cache->lock);
spin_unlock(&cache->space_info->lock);
- btrfs_fragment_free_space(cache);
+ fragment_free_space(cache);
}
#endif
mutex_unlock(&caching_ctl->mutex);
@@ -1167,6 +1167,81 @@ btrfs_start_trans_remove_block_group(struct btrfs_fs_info *fs_info,
num_items, 1);
}
+/*
+ * Mark block group @cache read-only, so later write won't happen to block
+ * group @cache.
+ *
+ * If @force is not set, this function will only mark the block group readonly
+ * if we have enough free space (1M) in other metadata/system block groups.
+ * If @force is not set, this function will mark the block group readonly
+ * without checking free space.
+ *
+ * NOTE: This function doesn't care if other block groups can contain all the
+ * data in this block group. That check should be done by relocation routine,
+ * not this function.
+ */
+static int inc_block_group_ro(struct btrfs_block_group_cache *cache,
+ int force)
+{
+ struct btrfs_space_info *sinfo = cache->space_info;
+ u64 num_bytes;
+ u64 sinfo_used;
+ u64 min_allocable_bytes;
+ int ret = -ENOSPC;
+
+ /*
+ * We need some metadata space and system metadata space for
+ * allocating chunks in some corner cases until we force to set
+ * it to be readonly.
+ */
+ if ((sinfo->flags &
+ (BTRFS_BLOCK_GROUP_SYSTEM | BTRFS_BLOCK_GROUP_METADATA)) &&
+ !force)
+ min_allocable_bytes = SZ_1M;
+ else
+ min_allocable_bytes = 0;
+
+ spin_lock(&sinfo->lock);
+ spin_lock(&cache->lock);
+
+ if (cache->ro) {
+ cache->ro++;
+ ret = 0;
+ goto out;
+ }
+
+ num_bytes = cache->key.offset - cache->reserved - cache->pinned -
+ cache->bytes_super - btrfs_block_group_used(&cache->item);
+ sinfo_used = btrfs_space_info_used(sinfo, true);
+
+ /*
+ * sinfo_used + num_bytes should always <= sinfo->total_bytes.
+ *
+ * Here we make sure if we mark this bg RO, we still have enough
+ * free space as buffer (if min_allocable_bytes is not 0).
+ */
+ if (sinfo_used + num_bytes + min_allocable_bytes <=
+ sinfo->total_bytes) {
+ sinfo->bytes_readonly += num_bytes;
+ cache->ro++;
+ list_add_tail(&cache->ro_list, &sinfo->ro_bgs);
+ ret = 0;
+ }
+out:
+ spin_unlock(&cache->lock);
+ spin_unlock(&sinfo->lock);
+ if (ret == -ENOSPC && btrfs_test_opt(cache->fs_info, ENOSPC_DEBUG)) {
+ btrfs_info(cache->fs_info,
+ "unable to make block group %llu ro",
+ cache->key.objectid);
+ btrfs_info(cache->fs_info,
+ "sinfo_used=%llu bg_num_bytes=%llu min_allocable=%llu",
+ sinfo_used, num_bytes, min_allocable_bytes);
+ btrfs_dump_space_info(cache->fs_info, cache->space_info, 0, 0);
+ }
+ return ret;
+}
+
/*
* Process the unused_bgs list and remove any that don't have any allocated
* space inside of them.
@@ -1222,7 +1297,7 @@ void btrfs_delete_unused_bgs(struct btrfs_fs_info *fs_info)
spin_unlock(&block_group->lock);
/* We don't want to force the issue, only flip if it's ok. */
- ret = __btrfs_inc_block_group_ro(block_group, 0);
+ ret = inc_block_group_ro(block_group, 0);
up_write(&space_info->groups_sem);
if (ret < 0) {
ret = 0;
@@ -1750,7 +1825,7 @@ int btrfs_read_block_groups(struct btrfs_fs_info *info)
set_avail_alloc_bits(info, cache->flags);
if (btrfs_chunk_readonly(info, cache->key.objectid)) {
- __btrfs_inc_block_group_ro(cache, 1);
+ inc_block_group_ro(cache, 1);
} else if (btrfs_block_group_used(&cache->item) == 0) {
ASSERT(list_empty(&cache->bg_list));
btrfs_mark_bg_unused(cache);
@@ -1771,11 +1846,11 @@ int btrfs_read_block_groups(struct btrfs_fs_info *info)
list_for_each_entry(cache,
&space_info->block_groups[BTRFS_RAID_RAID0],
list)
- __btrfs_inc_block_group_ro(cache, 1);
+ inc_block_group_ro(cache, 1);
list_for_each_entry(cache,
&space_info->block_groups[BTRFS_RAID_SINGLE],
list)
- __btrfs_inc_block_group_ro(cache, 1);
+ inc_block_group_ro(cache, 1);
}
btrfs_add_raid_kobjects(info);
@@ -1868,7 +1943,7 @@ int btrfs_make_block_group(struct btrfs_trans_handle *trans, u64 bytes_used,
u64 new_bytes_used = size - bytes_used;
bytes_used += new_bytes_used >> 1;
- btrfs_fragment_free_space(cache);
+ fragment_free_space(cache);
}
#endif
/*
@@ -1914,7 +1989,7 @@ static u64 update_block_group_flags(struct btrfs_fs_info *fs_info, u64 flags)
* if restripe for this chunk_type is on pick target profile and
* return, otherwise do the usual balance
*/
- stripped = btrfs_get_restripe_target(fs_info, flags);
+ stripped = get_restripe_target(fs_info, flags);
if (stripped)
return extended_to_chunk(stripped);
@@ -1953,81 +2028,6 @@ static u64 update_block_group_flags(struct btrfs_fs_info *fs_info, u64 flags)
return flags;
}
-/*
- * Mark block group @cache read-only, so later write won't happen to block
- * group @cache.
- *
- * If @force is not set, this function will only mark the block group readonly
- * if we have enough free space (1M) in other metadata/system block groups.
- * If @force is not set, this function will mark the block group readonly
- * without checking free space.
- *
- * NOTE: This function doesn't care if other block groups can contain all the
- * data in this block group. That check should be done by relocation routine,
- * not this function.
- */
-int __btrfs_inc_block_group_ro(struct btrfs_block_group_cache *cache,
- int force)
-{
- struct btrfs_space_info *sinfo = cache->space_info;
- u64 num_bytes;
- u64 sinfo_used;
- u64 min_allocable_bytes;
- int ret = -ENOSPC;
-
- /*
- * We need some metadata space and system metadata space for
- * allocating chunks in some corner cases until we force to set
- * it to be readonly.
- */
- if ((sinfo->flags &
- (BTRFS_BLOCK_GROUP_SYSTEM | BTRFS_BLOCK_GROUP_METADATA)) &&
- !force)
- min_allocable_bytes = SZ_1M;
- else
- min_allocable_bytes = 0;
-
- spin_lock(&sinfo->lock);
- spin_lock(&cache->lock);
-
- if (cache->ro) {
- cache->ro++;
- ret = 0;
- goto out;
- }
-
- num_bytes = cache->key.offset - cache->reserved - cache->pinned -
- cache->bytes_super - btrfs_block_group_used(&cache->item);
- sinfo_used = btrfs_space_info_used(sinfo, true);
-
- /*
- * sinfo_used + num_bytes should always <= sinfo->total_bytes.
- *
- * Here we make sure if we mark this bg RO, we still have enough
- * free space as buffer (if min_allocable_bytes is not 0).
- */
- if (sinfo_used + num_bytes + min_allocable_bytes <=
- sinfo->total_bytes) {
- sinfo->bytes_readonly += num_bytes;
- cache->ro++;
- list_add_tail(&cache->ro_list, &sinfo->ro_bgs);
- ret = 0;
- }
-out:
- spin_unlock(&cache->lock);
- spin_unlock(&sinfo->lock);
- if (ret == -ENOSPC && btrfs_test_opt(cache->fs_info, ENOSPC_DEBUG)) {
- btrfs_info(cache->fs_info,
- "unable to make block group %llu ro",
- cache->key.objectid);
- btrfs_info(cache->fs_info,
- "sinfo_used=%llu bg_num_bytes=%llu min_allocable=%llu",
- sinfo_used, num_bytes, min_allocable_bytes);
- btrfs_dump_space_info(cache->fs_info, cache->space_info, 0, 0);
- }
- return ret;
-}
-
int btrfs_inc_block_group_ro(struct btrfs_block_group_cache *cache)
{
@@ -2077,14 +2077,14 @@ int btrfs_inc_block_group_ro(struct btrfs_block_group_cache *cache)
goto out;
}
- ret = __btrfs_inc_block_group_ro(cache, 0);
+ ret = inc_block_group_ro(cache, 0);
if (!ret)
goto out;
alloc_flags = btrfs_get_alloc_profile(fs_info, cache->space_info->flags);
ret = btrfs_chunk_alloc(trans, alloc_flags, CHUNK_ALLOC_FORCE);
if (ret < 0)
goto out;
- ret = __btrfs_inc_block_group_ro(cache, 0);
+ ret = inc_block_group_ro(cache, 0);
out:
if (cache->flags & BTRFS_BLOCK_GROUP_SYSTEM) {
alloc_flags = update_block_group_flags(fs_info, cache->flags);
diff --git a/fs/btrfs/block-group.h b/fs/btrfs/block-group.h
index 2647c0aa76b8..6f4658b1ec94 100644
--- a/fs/btrfs/block-group.h
+++ b/fs/btrfs/block-group.h
@@ -169,7 +169,6 @@ static inline int btrfs_should_fragment_free_space(
(btrfs_test_opt(fs_info, FRAGMENT_DATA) &&
block_group->flags & BTRFS_BLOCK_GROUP_DATA);
}
-void btrfs_fragment_free_space(struct btrfs_block_group_cache *block_group);
#endif
struct btrfs_block_group_cache *btrfs_lookup_first_block_group(
@@ -249,9 +248,4 @@ static inline int btrfs_block_group_cache_done(
return cache->cached == BTRFS_CACHE_FINISHED ||
cache->cached == BTRFS_CACHE_ERROR;
}
-
-int __btrfs_inc_block_group_ro(struct btrfs_block_group_cache *cache,
- int force);
-u64 btrfs_get_restripe_target(struct btrfs_fs_info *fs_info, u64 flags);
-
#endif /* BTRFS_BLOCK_GROUP_H */
--
2.21.0
