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| author |   Daniel Axtens <dja@axtens.net> | 2021-02-26 19:12:57 -0600 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2021-03-29 12:52:15 +1100 |
| commit | 96d7a4e06fab9fbc4f67c563af65b073902f3e61 (patch) | |
| tree | c3fe05186bb624da9fee8b2e5b6015e2b5daf571 /tools/perf/scripts/python/bin/stackcollapse-report | |
| parent | powerpc/signal64: Replace restore_sigcontext() w/ unsafe_restore_sigcontext() (diff) | |
powerpc/signal64: Rewrite handle_rt_signal64() to minimise uaccess switches
Add uaccess blocks and use the 'unsafe' versions of functions doing user
access where possible to reduce the number of times uaccess has to be
opened/closed.
There is no 'unsafe' version of copy_siginfo_to_user, so move it
slightly to allow for a "longer" uaccess block.
Co-developed-by: Christopher M. Riedl <cmr@codefail.de>
Signed-off-by: Daniel Axtens <dja@axtens.net>
Signed-off-by: Christopher M. Riedl <cmr@codefail.de>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210227011259.11992-9-cmr@codefail.de
Diffstat (limited to 'tools/perf/scripts/python/bin/stackcollapse-report')
0 files changed, 0 insertions, 0 deletions