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| author | Carlos Llamas <cmllamas@google.com> | 2023-05-02 23:12:17 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-05-13 14:30:16 +0300 |
| commit | b15655b12ddca7ade09807f790bafb6fab61b50a (patch) | |
| tree | 11b81bfb3eb984ee617f095f3ed3755742a36623 /scripts/gdb/linux/stackdepot.py | |
| parent | bdc1c5fac982845a58d28690cdb56db8c88a530d (diff) | |
| download | linux-b15655b12ddca7ade09807f790bafb6fab61b50a.tar.xz | |
Revert "binder_alloc: add missing mmap_lock calls when using the VMA"
This reverts commit 44e602b4e52f70f04620bbbf4fe46ecb40170bde.
This caused a performance regression particularly when pages are getting
reclaimed. We don't need to acquire the mmap_lock to determine when the
binder buffer has been fully initialized. A subsequent patch will bring
back the lockless approach for this.
[cmllamas: resolved trivial conflicts with renaming of alloc->mm]
Fixes: 44e602b4e52f ("binder_alloc: add missing mmap_lock calls when using the VMA")
Cc: Liam Howlett <liam.howlett@oracle.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: stable@vger.kernel.org
Signed-off-by: Carlos Llamas <cmllamas@google.com>
Link: https://lore.kernel.org/r/20230502201220.1756319-1-cmllamas@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'scripts/gdb/linux/stackdepot.py')
0 files changed, 0 insertions, 0 deletions