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btrfs: Rename __btrfs_free_reserved_extent to btrfs_pin_reserved_extent

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__btrfs_free_reserved_extent now performs the actions of
btrfs_free_and_pin_reserved_extent. But this name is a bit of a
misnomer, since the extent is not really freed but just pinned. Reflect
this in the new name. No semantics changes.

Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Nikolay Borisov
2019-11-21 14:03:31 +02:00
committed by David Sterba
parent 7ef54d54bf
commit a0fbf736d3
3 changed files with 22 additions and 32 deletions
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38
fs/btrfs/extent-tree.c
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@@ -4165,25 +4165,6 @@ again:
return ret;
}
static int __btrfs_free_reserved_extent(struct btrfs_fs_info *fs_info,
u64 start, u64 len,
int pin, int delalloc)
{
struct btrfs_block_group *cache;
int ret = 0;
cache = btrfs_lookup_block_group(fs_info, start);
if (!cache) {
btrfs_err(fs_info, "Unable to find block group for %llu",
start);
return -ENOSPC;
}
ret = pin_down_extent(cache, start, len, 1);
btrfs_put_block_group(cache);
return ret;
}
int btrfs_free_reserved_extent(struct btrfs_fs_info *fs_info,
u64 start, u64 len, int delalloc)
{
@@ -4191,7 +4172,8 @@ int btrfs_free_reserved_extent(struct btrfs_fs_info *fs_info,
cache = btrfs_lookup_block_group(fs_info, start);
if (!cache) {
btrfs_err(fs_info, "unable to find block group for %llu", start);
btrfs_err(fs_info, "Unable to find block group for %llu",
start);
return -ENOSPC;
}
@@ -4203,10 +4185,20 @@ int btrfs_free_reserved_extent(struct btrfs_fs_info *fs_info,
return 0;
}
int btrfs_free_and_pin_reserved_extent(struct btrfs_fs_info *fs_info,
u64 start, u64 len)
int btrfs_pin_reserved_extent(struct btrfs_fs_info *fs_info, u64 start, u64 len)
{
return __btrfs_free_reserved_extent(fs_info, start, len, 1, 0);
struct btrfs_block_group *cache;
int ret = 0;
cache = btrfs_lookup_block_group(fs_info, start);
if (!cache) {
btrfs_err(fs_info, "unable to find block group for %llu", start);
return -ENOSPC;
}
ret = pin_down_extent(cache, start, len, 1);
btrfs_put_block_group(cache);
return ret;
}
static int alloc_reserved_file_extent(struct btrfs_trans_handle *trans,