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| author | Fabio M. De Francesco <fmdefrancesco@gmail.com> | 2022-04-25 19:57:52 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-04-26 12:51:31 +0200 |
| commit | 26eff2d66aff33527c7872277ab9c9d8478a978c (patch) | |
| tree | 5b45828c3009bce93ef00536b8130a10084dc5c2 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | drivers/virt/fsl_hypervisor: remove unneeded `ret` variable in `fsl_hv_open()` (diff) | |
| download | linux-26eff2d66aff33527c7872277ab9c9d8478a978c.tar.gz linux-26eff2d66aff33527c7872277ab9c9d8478a978c.zip | |
binder: Use memset_page() in binder_alloc_clear_buf()
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_clear_buf() 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() but, instead of open
coding these two functions and adding a memset() of the virtual address
of the mapping, prefer memset_page().
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/20220425175754.8180-2-fmdefrancesco@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions