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| author | Nikolay Borisov <nborisov@suse.com> | 2018-08-15 18:26:54 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-09-12 11:45:29 +0200 |
| commit | a3bbdde20ef92046872e501a0c2e9390cf929470 (patch) | |
| tree | 9d4240a6b1d1f11fcc26e6d6508cd97bb0fa3767 /scripts/patch-kernel | |
| parent | 123597681e8928a8abe97e1f598e3ec6c6aeb2e5 (diff) | |
btrfs: Remove extraneous extent_buffer_get from tree_mod_log_rewind
[ Upstream commit 24cee18a1c1d7c731ea5987e0c99daea22ae7f4a ]
When a rewound buffer is created it already has a ref count of 1 and the
dummy flag set. Then another ref is taken bumping the count to 2.
Finally when this buffer is released from btrfs_release_path the extra
reference is decremented by the special handling code in
free_extent_buffer.
However, this special code is in fact redundant sinca ref count of 1 is
still correct since the buffer is only accessed via btrfs_path struct.
This paves the way forward of removing the special handling in
free_extent_buffer.
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/patch-kernel')
0 files changed, 0 insertions, 0 deletions