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| author | Nikolay Borisov <nborisov@suse.com> | 2018-08-15 18:26:53 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-09-12 11:45:29 +0200 |
| commit | 123597681e8928a8abe97e1f598e3ec6c6aeb2e5 (patch) | |
| tree | de060dabcdd42cc47bb961e9b7dfdfe7b4e3178f /scripts/objdiff | |
| parent | d39a5df70ab9a010ad0fc999e2888529e63bb2ee (diff) | |
btrfs: Remove redundant extent_buffer_get in get_old_root
[ Upstream commit 6c122e2a0c515cfb3f3a9cefb5dad4cb62109c78 ]
get_old_root used used only by btrfs_search_old_slot to initialise the
path structure. The old root is always a cloned buffer (either via alloc
dummy or via btrfs_clone_extent_buffer) and its reference count is 2: 1
from allocation, 1 from extent_buffer_get call in get_old_root.
This latter explicit ref count acquire operation is in fact unnecessary
since the semantic is such that the newly allocated buffer is handed
over to the btrfs_path for lifetime management. Considering this just
remove the extra extent_buffer_get in get_old_root.
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'scripts/objdiff')
0 files changed, 0 insertions, 0 deletions