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| author |   Martin Schwidefsky <schwidefsky@de.ibm.com> | 2014-04-14 15:11:26 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2014-05-20 08:58:46 +0200 |
| commit | beef560b4cdfafb2211a856e1d722540f5151933 (patch) | |
| tree | 7ded8bd3d03266371d68d74d2d96ce8728c2390d /arch/s390/include/asm/thread_info.h | |
| parent | s390/smp: Avoid busy loop after halt and "begin" on z/VM (diff) | |
| download | linux-dev-beef560b4cdfafb2211a856e1d722540f5151933.tar.xz linux-dev-beef560b4cdfafb2211a856e1d722540f5151933.zip | |
s390/uaccess: simplify control register updates
Always switch to the kernel ASCE in switch_mm. Load the secondary
space ASCE in finish_arch_post_lock_switch after checking that
any pending page table operations have completed. The primary
ASCE is loaded in entry[64].S. With this the update_primary_asce
call can be removed from the switch_to macro and from the start
of switch_mm function. Remove the load_primary argument from
update_user_asce/clear_user_asce, rename update_user_asce to
set_user_asce and rename update_primary_asce to load_kernel_asce.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/include/asm/thread_info.h')
| -rw-r--r-- | arch/s390/include/asm/thread_info.h | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/arch/s390/include/asm/thread_info.h b/arch/s390/include/asm/thread_info.h index 50630e6a35de..f3e5cad93b26 100644 --- a/arch/s390/include/asm/thread_info.h +++ b/arch/s390/include/asm/thread_info.h @@ -81,8 +81,7 @@ static inline struct thread_info *current_thread_info(void) #define TIF_NOTIFY_RESUME 1 /* callback before returning to user */ #define TIF_SIGPENDING 2 /* signal pending */ #define TIF_NEED_RESCHED 3 /* rescheduling necessary */ -#define TIF_TLB_WAIT 4 /* wait for TLB flush completion */ -#define TIF_ASCE 5 /* primary asce needs fixup / uaccess */ +#define TIF_ASCE 5 /* user asce needs fixup / uaccess */ #define TIF_PER_TRAP 6 /* deliver sigtrap on return to user */ #define TIF_MCCK_PENDING 7 /* machine check handling is pending */ #define TIF_SYSCALL_TRACE 8 /* syscall trace active */ @@ -99,7 +98,6 @@ static inline struct thread_info *current_thread_info(void) #define _TIF_NOTIFY_RESUME (1<<TIF_NOTIFY_RESUME) #define _TIF_SIGPENDING (1<<TIF_SIGPENDING) #define _TIF_NEED_RESCHED (1<<TIF_NEED_RESCHED) -#define _TIF_TLB_WAIT (1<<TIF_TLB_WAIT) #define _TIF_ASCE (1<<TIF_ASCE) #define _TIF_PER_TRAP (1<<TIF_PER_TRAP) #define _TIF_MCCK_PENDING (1<<TIF_MCCK_PENDING) |