This uses a helper instead of open code around used byte of space_info
everywhere.
Signed-off-by: Liu Bo <bo.li....@oracle.com>
---
fs/btrfs/extent-tree.c | 42 ++++++++++++++++++++----------------------
1 file changed, 20 insertions(+), 22 deletions(-)
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 097fa4a..b2b0b82 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -4118,6 +4118,15 @@ u64 btrfs_get_alloc_profile(struct btrfs_root *root, int
data)
return ret;
}
+static u64 btrfs_space_info_used(struct btrfs_space_info *s_info,
+ bool may_used_included)
+{
+ ASSERT(s_info);
+ return s_info->bytes_used + s_info->bytes_reserved +
+ s_info->bytes_pinned + s_info->bytes_readonly +
+ ((may_used_included) ? s_info->bytes_may_use : 0);
+}
+
int btrfs_alloc_data_chunk_ondemand(struct inode *inode, u64 bytes)
{
struct btrfs_space_info *data_sinfo;
@@ -4143,9 +4152,7 @@ int btrfs_alloc_data_chunk_ondemand(struct inode *inode,
u64 bytes)
again:
/* make sure we have enough space to handle the data first */
spin_lock(&data_sinfo->lock);
- used = data_sinfo->bytes_used + data_sinfo->bytes_reserved +
- data_sinfo->bytes_pinned + data_sinfo->bytes_readonly +
- data_sinfo->bytes_may_use;
+ used = btrfs_space_info_used(data_sinfo, true);
if (used + bytes > data_sinfo->total_bytes) {
struct btrfs_trans_handle *trans;
@@ -4420,9 +4427,7 @@ void check_system_chunk(struct btrfs_trans_handle *trans,
info = __find_space_info(fs_info, BTRFS_BLOCK_GROUP_SYSTEM);
spin_lock(&info->lock);
- left = info->total_bytes - info->bytes_used - info->bytes_pinned -
- info->bytes_reserved - info->bytes_readonly -
- info->bytes_may_use;
+ left = info->total_bytes - btrfs_space_info_used(info, true);
spin_unlock(&info->lock);
num_devs = get_profile_num_devs(fs_info, type);
@@ -4605,8 +4610,7 @@ static int can_overcommit(struct btrfs_root *root,
return 0;
profile = btrfs_get_alloc_profile(root, 0);
- used = space_info->bytes_used + space_info->bytes_reserved +
- space_info->bytes_pinned + space_info->bytes_readonly;
+ used = btrfs_space_info_used(space_info, false);
/*
* We only want to allow over committing if we have lots of actual space
@@ -5105,6 +5109,7 @@ static int wait_reserve_ticket(struct btrfs_fs_info
*fs_info,
return ret;
}
+
/**
* reserve_metadata_bytes - try to reserve bytes from the block_rsv's space
* @root - the root we're allocating for
@@ -5134,9 +5139,7 @@ static int __reserve_metadata_bytes(struct btrfs_root
*root,
spin_lock(&space_info->lock);
ret = -ENOSPC;
- used = space_info->bytes_used + space_info->bytes_reserved +
- space_info->bytes_pinned + space_info->bytes_readonly +
- space_info->bytes_may_use;
+ used = btrfs_space_info_used(space_info, true);
/*
* If we have enough space then hooray, make our reservation and carry
@@ -5629,9 +5632,7 @@ static void update_global_block_rsv(struct btrfs_fs_info
*fs_info)
block_rsv->size = min_t(u64, num_bytes, SZ_512M);
if (block_rsv->reserved < block_rsv->size) {
- num_bytes = sinfo->bytes_used + sinfo->bytes_pinned +
- sinfo->bytes_reserved + sinfo->bytes_readonly +
- sinfo->bytes_may_use;
+ num_bytes = btrfs_space_info_used(sinfo, true);
if (sinfo->total_bytes > num_bytes) {
num_bytes = sinfo->total_bytes - num_bytes;
num_bytes = min(num_bytes,
@@ -7906,9 +7907,8 @@ static void dump_space_info(struct btrfs_fs_info *fs_info,
spin_lock(&info->lock);
btrfs_info(fs_info, "space_info %llu has %llu free, is %sfull",
info->flags,
- info->total_bytes - info->bytes_used - info->bytes_pinned -
- info->bytes_reserved - info->bytes_readonly -
- info->bytes_may_use, (info->full) ? "" : "not ");
+ info->total_bytes - btrfs_space_info_used(info, true),
+ (info->full) ? "" : "not ");
btrfs_info(fs_info,
"space_info total=%llu, used=%llu, pinned=%llu, reserved=%llu,
may_use=%llu, readonly=%llu",
info->total_bytes, info->bytes_used, info->bytes_pinned,
@@ -9344,8 +9344,7 @@ static int inc_block_group_ro(struct
btrfs_block_group_cache *cache, int force)
num_bytes = cache->key.offset - cache->reserved - cache->pinned -
cache->bytes_super - btrfs_block_group_used(&cache->item);
- if (sinfo->bytes_used + sinfo->bytes_reserved + sinfo->bytes_pinned +
- sinfo->bytes_may_use + sinfo->bytes_readonly + num_bytes +
+ if (btrfs_space_info_used(sinfo, true) + num_bytes +
min_allocable_bytes <= sinfo->total_bytes) {
sinfo->bytes_readonly += num_bytes;
cache->ro++;
@@ -9555,9 +9554,8 @@ int btrfs_can_relocate(struct btrfs_fs_info *fs_info, u64
bytenr)
* all of the extents from this block group. If we can, we're good
*/
if ((space_info->total_bytes != block_group->key.offset) &&
- (space_info->bytes_used + space_info->bytes_reserved +
- space_info->bytes_pinned + space_info->bytes_readonly +
- min_free < space_info->total_bytes)) {
+ (btrfs_space_info_used(space_info, false) + min_free <
+ space_info->total_bytes)) {
spin_unlock(&space_info->lock);
goto out;
}
--
2.5.5
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