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btrfs: simplify variables in btrfs_block_rsv_refill()

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At btrfs_block_rsv_refill(), there's no point in initializing the
'num_bytes' variable to 0 and then, after taking the block reserve's
spinlock, initializing it to the value of the 'min_reserved' parameter.

So just get rid of the 'num_bytes' local variable and rename the
'min_reserved' parameter to 'num_bytes'.

Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Filipe Manana 2023-03-21 11:13:48 +00:00 committed by David Sterba
parent 4a6f5ccac5
commit 4e8313e53c
2 changed files with 2 additions and 4 deletions
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4
fs/btrfs/block-rsv.c
View File

@ -242,17 +242,15 @@ int btrfs_block_rsv_check(struct btrfs_block_rsv *block_rsv, int min_percent)
}
int btrfs_block_rsv_refill(struct btrfs_fs_info *fs_info,
struct btrfs_block_rsv *block_rsv, u64 min_reserved,
struct btrfs_block_rsv *block_rsv, u64 num_bytes,
enum btrfs_reserve_flush_enum flush)
{
u64 num_bytes = 0;
int ret = -ENOSPC;
if (!block_rsv)
return 0;
spin_lock(&block_rsv->lock);
num_bytes = min_reserved;
if (block_rsv->reserved >= num_bytes)
ret = 0;
else

2
fs/btrfs/block-rsv.h
View File

@ -65,7 +65,7 @@ int btrfs_block_rsv_add(struct btrfs_fs_info *fs_info,
enum btrfs_reserve_flush_enum flush);
int btrfs_block_rsv_check(struct btrfs_block_rsv *block_rsv, int min_percent);
int btrfs_block_rsv_refill(struct btrfs_fs_info *fs_info,
struct btrfs_block_rsv *block_rsv, u64 min_reserved,
struct btrfs_block_rsv *block_rsv, u64 num_bytes,
enum btrfs_reserve_flush_enum flush);
int btrfs_block_rsv_migrate(struct btrfs_block_rsv *src_rsv,
struct btrfs_block_rsv *dst_rsv, u64 num_bytes,