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| author |  Josh Poimboeuf <jpoimboe@redhat.com>
| 2020-08-18 15:57:44 +0200 |
|---|---|---|
| committer |  Ingo Molnar <mingo@kernel.org>
| 2020-09-01 09:58:05 +0200 |
| commit | e6d6c071f22de29e4993784fc00cd2202b7ba149 (patch) | |
| tree | bae18c77a906997cabae12110f0c759a28856a65 /arch/x86/kernel/vmlinux.lds.S | |
| parent | static_call: Avoid kprobes on inline static_call()s (diff) | |
| download | linux-e6d6c071f22de29e4993784fc00cd2202b7ba149.tar.gz linux-e6d6c071f22de29e4993784fc00cd2202b7ba149.tar.bz2 linux-e6d6c071f22de29e4993784fc00cd2202b7ba149.zip | |
x86/static_call: Add out-of-line static call implementation
Add the x86 out-of-line static call implementation. For each key, a
permanent trampoline is created which is the destination for all static
calls for the given key. The trampoline has a direct jump which gets
patched by static_call_update() when the destination function changes.
[peterz: fixed trampoline, rewrote patching code]
Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: https://lore.kernel.org/r/20200818135804.804315175@infradead.org
Diffstat (limited to 'arch/x86/kernel/vmlinux.lds.S')
0 files changed, 0 insertions, 0 deletions