diff options
| author | Paul Mackerras <paulus@samba.org> | 2008-11-12 08:43:22 +1100 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2008-11-12 08:43:22 +1100 |
| commit | 486936cd93e99c802153b3f2f629c5ce62b8c0d4 (patch) | |
| tree | 51e261a96e1fb6b51d4a6afb92bfc2480e150b6c /arch/powerpc/kernel | |
| parent | 1c1b777a5673b57a6c0377ba60a790d05e4a0676 (diff) | |
| parent | f21f237cf55494c3a4209de323281a3b0528da10 (diff) | |
Merge branch 'linux-2.6' into next
Diffstat (limited to 'arch/powerpc/kernel')
| -rw-r--r-- | arch/powerpc/kernel/misc_32.S | 4 | ||||
| -rw-r--r-- | arch/powerpc/kernel/signal_32.c | 18 |
2 files changed, 19 insertions, 3 deletions
diff --git a/arch/powerpc/kernel/misc_32.S b/arch/powerpc/kernel/misc_32.S index 6a9b4bf0d17..bdc8b0e860e 100644 --- a/arch/powerpc/kernel/misc_32.S +++ b/arch/powerpc/kernel/misc_32.S @@ -470,6 +470,8 @@ _GLOBAL(_tlbil_pid) mfspr r3,SPRN_MMUCSR0 andi. r3,r3,MMUCSR0_TLBFI@l bne 1b + msync + isync blr /* @@ -486,6 +488,8 @@ _GLOBAL(_tlbil_va) rlwinm r4,r4,0,1,31 mtspr SPRN_MAS1,r4 tlbwe + msync + isync blr #endif /* CONFIG_FSL_BOOKE */ diff --git a/arch/powerpc/kernel/signal_32.c b/arch/powerpc/kernel/signal_32.c index a6a43103655..b13abf30599 100644 --- a/arch/powerpc/kernel/signal_32.c +++ b/arch/powerpc/kernel/signal_32.c @@ -941,9 +941,21 @@ long sys_swapcontext(struct ucontext __user *old_ctx, #ifdef CONFIG_PPC64 unsigned long new_msr = 0; - if (new_ctx && - get_user(new_msr, &new_ctx->uc_mcontext.mc_gregs[PT_MSR])) - return -EFAULT; + if (new_ctx) { + struct mcontext __user *mcp; + u32 cmcp; + + /* + * Get pointer to the real mcontext. No need for + * access_ok since we are dealing with compat + * pointers. + */ + if (__get_user(cmcp, &new_ctx->uc_regs)) + return -EFAULT; + mcp = (struct mcontext __user *)(u64)cmcp; + if (__get_user(new_msr, &mcp->mc_gregs[PT_MSR])) + return -EFAULT; + } /* * Check that the context is not smaller than the original * size (with VMX but without VSX) |