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| author |   David S. Miller <davem@davemloft.net> | 2005-07-24 19:36:26 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2005-07-24 19:36:26 -0700 |
| commit | db7d9a4eb700be766cc9f29241483dbb1e748832 (patch) | |
| tree | 48848384df15d9404ceab05867d7f4ef6b1a4bbe /include/asm-sparc64/ptrace.h | |
| parent | [SPARC64]: Privatize sun5_timer. (diff) | |
| download | linux-dev-db7d9a4eb700be766cc9f29241483dbb1e748832.tar.xz linux-dev-db7d9a4eb700be766cc9f29241483dbb1e748832.zip | |
[SPARC64]: Move syscall success and newchild state out of thread flags.
These two bits were accesses non-atomically from assembler
code. So, in order to eliminate any potential races resulting
from that, move these pieces of state into two bytes elsewhere
in struct thread_info.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/asm-sparc64/ptrace.h')
| -rw-r--r-- | include/asm-sparc64/ptrace.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/include/asm-sparc64/ptrace.h b/include/asm-sparc64/ptrace.h index 2d2b5a113d24..6194f771e9fc 100644 --- a/include/asm-sparc64/ptrace.h +++ b/include/asm-sparc64/ptrace.h @@ -94,8 +94,9 @@ struct sparc_trapf { #define STACKFRAME32_SZ sizeof(struct sparc_stackf32) #ifdef __KERNEL__ -#define force_successful_syscall_return() \ - set_thread_flag(TIF_SYSCALL_SUCCESS) +#define force_successful_syscall_return() \ +do { current_thread_info()->syscall_noerror = 1; \ +} while (0) #define user_mode(regs) (!((regs)->tstate & TSTATE_PRIV)) #define instruction_pointer(regs) ((regs)->tpc) #ifdef CONFIG_SMP |