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| author | Hendrik Brueckner <brueckner@linux.vnet.ibm.com> | 2015-06-29 16:43:06 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2015-08-03 10:04:37 +0200 |
| commit | d0164ee20d98847d3c777a0ae90e678e7ac1e416 (patch) | |
| tree | 524bb68d1e46da8876da38e683b5474a7ec7f7ac /arch/s390/kernel/signal.c | |
| parent | s390/pci: use pci_rescan_remove_lock (diff) | |
| download | linux-d0164ee20d98847d3c777a0ae90e678e7ac1e416.tar.xz linux-d0164ee20d98847d3c777a0ae90e678e7ac1e416.zip | |
s390/kernel: remove save_fpu_regs() parameter and use __LC_CURRENT instead
All calls to save_fpu_regs() specify the fpu structure of the current task
pointer as parameter. The task pointer of the current task can also be
retrieved from the CPU lowcore directly. Remove the parameter definition,
load the __LC_CURRENT task pointer from the CPU lowcore, and rebase the FPU
structure onto the task structure. Apply the same approach for the
load_fpu_regs() function.
Reviewed-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/kernel/signal.c')
| -rw-r--r-- | arch/s390/kernel/signal.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/s390/kernel/signal.c b/arch/s390/kernel/signal.c index 2f4c7e2638c9..9549af102d75 100644 --- a/arch/s390/kernel/signal.c +++ b/arch/s390/kernel/signal.c @@ -105,7 +105,7 @@ struct rt_sigframe static void store_sigregs(void) { save_access_regs(current->thread.acrs); - save_fpu_regs(¤t->thread.fpu); + save_fpu_regs(); } /* Load registers after signal return */ @@ -222,7 +222,7 @@ SYSCALL_DEFINE0(sigreturn) if (__copy_from_user(&set.sig, &frame->sc.oldmask, _SIGMASK_COPY_SIZE)) goto badframe; set_current_blocked(&set); - save_fpu_regs(¤t->thread.fpu); + save_fpu_regs(); if (restore_sigregs(regs, &frame->sregs)) goto badframe; if (restore_sigregs_ext(regs, &frame->sregs_ext)) @@ -246,7 +246,7 @@ SYSCALL_DEFINE0(rt_sigreturn) set_current_blocked(&set); if (restore_altstack(&frame->uc.uc_stack)) goto badframe; - save_fpu_regs(¤t->thread.fpu); + save_fpu_regs(); if (restore_sigregs(regs, &frame->uc.uc_mcontext)) goto badframe; if (restore_sigregs_ext(regs, &frame->uc.uc_mcontext_ext)) |