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The patch aims to fix a performance issue for the syscall personality(PER_LINUX32). On IA-64 box, the syscall personality (PER_LINUX32) has poor performance because it failed to find the Linux/x86 execution domain. Then it tried to load the kernel module however it failed always and it used the default execution domain PER_LINUX instead. Requesting kernel modules is very expensive. It caused the performance issue. (see the function lookup_exec_domain in kernel/exec_domain.c). To resolve the issue, execution domain Linux/x86 is always registered in initialization time for IA-64 architecture. Signed-off-by: Xiaolan Huang <xiaolan.huang@intel.com> Signed-off-by: Tony Luck <tony.luck@intel.com> |
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| .. | ||
| audit.c | ||
| binfmt_elf32.c | ||
| elfcore32.h | ||
| ia32_entry.S | ||
| ia32_ldt.c | ||
| ia32_signal.c | ||
| ia32_support.c | ||
| ia32_traps.c | ||
| ia32priv.h | ||
| Makefile | ||
| sys_ia32.c | ||