forked from Minki/linux
5e88353d8b
Signal handling contains a bunch of accesses to individual user space items, which causes an excessive number of STAC and CLAC instructions. Instead, let get/put_user_try ... get/put_user_catch() contain the STAC and CLAC instructions. This means that get/put_user_try no longer nests, and furthermore that it is no longer legal to use user space access functions other than __get/put_user_ex() inside those blocks. However, these macros are x86-specific anyway and are only used in the signal-handling paths; a simple reordering of moving the larger subroutine calls out of the try...catch blocks resolves that problem. Signed-off-by: H. Peter Anvin <hpa@linux.intel.com> Link: http://lkml.kernel.org/r/1348256595-29119-12-git-send-email-hpa@linux.intel.com |
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| .. | ||
| audit.c | ||
| ia32_aout.c | ||
| ia32_signal.c | ||
| ia32entry.S | ||
| ipc32.c | ||
| Makefile | ||
| nosyscall.c | ||
| sys_ia32.c | ||
| syscall_ia32.c | ||