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btrfs: Rename __btrfs_alloc_chunk to btrfs_alloc_chunk

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Having btrfs_alloc_chunk doesn't bring any value since it
encapsulates a lockdep assert and a call to find_next_chunk. Simply
rename the internal __btrfs_alloc_chunk function to the public one
and remove it's 2nd parameter as all callers always pass the return
value of find_next_chunk. Finally, migrate the call to
lockdep_assert_held so as to not lose the check.

Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Nikolay Borisov 2020-03-02 12:29:25 +02:00 committed by David Sterba
parent fa121a26b2
commit 11c67b1a40
1 changed files with 13 additions and 25 deletions
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38
fs/btrfs/volumes.c
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@ -5114,8 +5114,7 @@ error_del_extent:
return ret;
}
static int __btrfs_alloc_chunk(struct btrfs_trans_handle *trans,
u64 start, u64 type)
int btrfs_alloc_chunk(struct btrfs_trans_handle *trans, u64 type)
{
struct btrfs_fs_info *info = trans->fs_info;
struct btrfs_fs_devices *fs_devices = info->fs_devices;
@ -5123,6 +5122,8 @@ static int __btrfs_alloc_chunk(struct btrfs_trans_handle *trans,
struct alloc_chunk_ctl ctl;
int ret;
lockdep_assert_held(&info->chunk_mutex);
if (!alloc_profile_is_valid(type, 0)) {
ASSERT(0);
return -EINVAL;
@ -5140,7 +5141,7 @@ static int __btrfs_alloc_chunk(struct btrfs_trans_handle *trans,
return -EINVAL;
}
ctl.start = start;
ctl.start = find_next_chunk(info);
ctl.type = type;
init_alloc_chunk_ctl(fs_devices, &ctl);
@ -5164,6 +5165,13 @@ out:
return ret;
}
/*
* Chunk allocation falls into two parts. The first part does work
* that makes the new allocated chunk usable, but does not do any operation
* that modifies the chunk tree. The second part does the work that
* requires modifying the chunk tree. This division is important for the
* bootstrap process of adding storage to a seed btrfs.
*/
int btrfs_finish_chunk_alloc(struct btrfs_trans_handle *trans,
u64 chunk_offset, u64 chunk_size)
{
@ -5262,39 +5270,19 @@ out:
return ret;
}
/*
* Chunk allocation falls into two parts. The first part does work
* that makes the new allocated chunk usable, but does not do any operation
* that modifies the chunk tree. The second part does the work that
* requires modifying the chunk tree. This division is important for the
* bootstrap process of adding storage to a seed btrfs.
*/
int btrfs_alloc_chunk(struct btrfs_trans_handle *trans, u64 type)
{
u64 chunk_offset;
lockdep_assert_held(&trans->fs_info->chunk_mutex);
chunk_offset = find_next_chunk(trans->fs_info);
return __btrfs_alloc_chunk(trans, chunk_offset, type);
}
static noinline int init_first_rw_device(struct btrfs_trans_handle *trans)
{
struct btrfs_fs_info *fs_info = trans->fs_info;
u64 chunk_offset;
u64 sys_chunk_offset;
u64 alloc_profile;
int ret;
chunk_offset = find_next_chunk(fs_info);
alloc_profile = btrfs_metadata_alloc_profile(fs_info);
ret = __btrfs_alloc_chunk(trans, chunk_offset, alloc_profile);
ret = btrfs_alloc_chunk(trans, alloc_profile);
if (ret)
return ret;
sys_chunk_offset = find_next_chunk(fs_info);
alloc_profile = btrfs_system_alloc_profile(fs_info);
ret = __btrfs_alloc_chunk(trans, sys_chunk_offset, alloc_profile);
ret = btrfs_alloc_chunk(trans, alloc_profile);
return ret;
}