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| author | Fabio M. De Francesco <fmdefrancesco@gmail.com> | 2022-04-25 20:57:53 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-04-26 13:51:31 +0300 |
| commit | 1d625960e41907af706f573a3cd097595a0ade63 (patch) | |
| tree | 8e5a08d2d6f7ff7e3def7d8be254b6f581075aae /mm/slab.c | |
| parent | 26eff2d66aff33527c7872277ab9c9d8478a978c (diff) | |
| download | linux-1d625960e41907af706f573a3cd097595a0ade63.tar.xz | |
binder: Use kmap_local_page() in binder_alloc_copy_user_to_buffer()
The use of kmap() is being deprecated in favor of kmap_local_page()
where it is feasible. With kmap_local_page(), the mapping is per
thread, CPU local and not globally visible.
binder_alloc_copy_user_to_buffer() is a function where the use of
kmap_local_page() in place of kmap() is correctly suited because
the mapping is local to the thread.
Therefore, use kmap_local_page() / kunmap_local().
Cc: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Acked-by: Todd Kjos <tkjos@google.com>
Signed-off-by: Fabio M. De Francesco <fmdefrancesco@gmail.com>
Link: https://lore.kernel.org/r/20220425175754.8180-3-fmdefrancesco@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'mm/slab.c')
0 files changed, 0 insertions, 0 deletions