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| author | H. Peter Anvin <hpa@linux.intel.com> | 2013-01-29 14:59:09 -0800 |
|---|---|---|
| committer | H. Peter Anvin <hpa@linux.intel.com> | 2013-01-29 15:10:15 -0800 |
| commit | de65d816aa44f9ddd79861ae21d75010cc1fd003 (patch) | |
| tree | 04a637a43b2e52a733d0dcb7595a47057571e7da /arch/mips/kernel/entry.S | |
| parent | 9710f581bb4c35589ac046b0cfc0deb7f369fc85 (diff) | |
| parent | 5dcd14ecd41ea2b3ae3295a9b30d98769d52165f (diff) | |
| download | blackbird-op-linux-de65d816aa44f9ddd79861ae21d75010cc1fd003.tar.gz blackbird-op-linux-de65d816aa44f9ddd79861ae21d75010cc1fd003.zip | |
Merge remote-tracking branch 'origin/x86/boot' into x86/mm2
Coming patches to x86/mm2 require the changes and advanced baseline in
x86/boot.
Resolved Conflicts:
arch/x86/kernel/setup.c
mm/nobootmem.c
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Diffstat (limited to 'arch/mips/kernel/entry.S')
| -rw-r--r-- | arch/mips/kernel/entry.S | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/arch/mips/kernel/entry.S b/arch/mips/kernel/entry.S index a6c133212003..e5786858cdb6 100644 --- a/arch/mips/kernel/entry.S +++ b/arch/mips/kernel/entry.S @@ -36,6 +36,11 @@ FEXPORT(ret_from_exception) FEXPORT(ret_from_irq) LONG_S s0, TI_REGS($28) FEXPORT(__ret_from_irq) +/* + * We can be coming here from a syscall done in the kernel space, + * e.g. a failed kernel_execve(). + */ +resume_userspace_check: LONG_L t0, PT_STATUS(sp) # returning to kernel mode? andi t0, t0, KU_USER beqz t0, resume_kernel @@ -65,6 +70,12 @@ need_resched: b need_resched #endif +FEXPORT(ret_from_kernel_thread) + jal schedule_tail # a0 = struct task_struct *prev + move a0, s1 + jal s0 + j syscall_exit + FEXPORT(ret_from_fork) jal schedule_tail # a0 = struct task_struct *prev @@ -162,7 +173,7 @@ work_notifysig: # deal with pending signals and move a0, sp li a1, 0 jal do_notify_resume # a2 already loaded - j resume_userspace + j resume_userspace_check FEXPORT(syscall_exit_partial) local_irq_disable # make sure need_resched doesn't |
