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| author | Kamalesh Babulal <kamalesh@linux.vnet.ibm.com> | 2018-07-12 13:35:06 +0530 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2018-07-16 17:50:33 +0200 |
| commit | 1d98a69e5cef3aeb68bcefab0e67e342d6bb4dad (patch) | |
| tree | 42a42efcfc6a838e8c369d2c93f4b6af8de87f0c /kernel/livepatch | |
| parent | 41e3bef52e42c03cb7234f2d8419352478c92926 (diff) | |
| download | linux-stable-1d98a69e5cef3aeb68bcefab0e67e342d6bb4dad.tar.gz linux-stable-1d98a69e5cef3aeb68bcefab0e67e342d6bb4dad.tar.bz2 linux-stable-1d98a69e5cef3aeb68bcefab0e67e342d6bb4dad.zip | |
livepatch: Remove reliable stacktrace check in klp_try_switch_task()
Support for immediate flag was removed by commit d0807da78e11
("livepatch: Remove immediate feature"). We bail out during
patch registration for architectures, those don't support
reliable stack trace. Remove the check in klp_try_switch_task(),
as its not required.
Signed-off-by: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Acked-by: Miroslav Benes <mbenes@suse.cz>
Acked-by: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'kernel/livepatch')
| -rw-r--r-- | kernel/livepatch/transition.c | 7 |
1 files changed, 0 insertions, 7 deletions
diff --git a/kernel/livepatch/transition.c b/kernel/livepatch/transition.c index 7c6631e693bc..5bc349805e03 100644 --- a/kernel/livepatch/transition.c +++ b/kernel/livepatch/transition.c @@ -310,13 +310,6 @@ static bool klp_try_switch_task(struct task_struct *task) return true; /* - * For arches which don't have reliable stack traces, we have to rely - * on other methods (e.g., switching tasks at kernel exit). - */ - if (!klp_have_reliable_stack()) - return false; - - /* * Now try to check the stack for any to-be-patched or to-be-unpatched * functions. If all goes well, switch the task to the target patch * state. |