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| author | Paul Mundt <lethal@linux-sh.org> | 2007-06-19 12:33:21 +0900 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2007-06-19 12:33:21 +0900 |
| commit | 3aeb884b4ec442719a2d8aa15316415a7412efd8 (patch) | |
| tree | bcf69c95107b8296cbe76c0d86ee7cadc05c6019 /arch/sh | |
| parent | 5527398218aae85f37552a69fad163fa500c39e4 (diff) | |
| download | kernel_samsung_smdk4412-3aeb884b4ec442719a2d8aa15316415a7412efd8.zip kernel_samsung_smdk4412-3aeb884b4ec442719a2d8aa15316415a7412efd8.tar.gz kernel_samsung_smdk4412-3aeb884b4ec442719a2d8aa15316415a7412efd8.tar.bz2 | |
sh: Handle -ERESTART_RESTARTBLOCK for restartable syscalls.
The current implementation only handles -ERESTARTNOHAND, whereas we
also need to handle -ERESTART_RESTARTBLOCK in the handle_signal()
case for restartable system calls.
As noted by Carl:
This fixes the LTP test nanosleep03 - the current kernel causes
-ERESTART_RESTARTBLOCK to reach user space rather than the correct
-EINTR.
Reported-by: Carl Shaw <shaw.carl@gmail.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh')
| -rw-r--r-- | arch/sh/kernel/signal.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/arch/sh/kernel/signal.c b/arch/sh/kernel/signal.c index fdca038..e323e29 100644 --- a/arch/sh/kernel/signal.c +++ b/arch/sh/kernel/signal.c @@ -268,7 +268,7 @@ asmlinkage int sys_rt_sigreturn(unsigned long r4, unsigned long r5, badframe: force_sig(SIGSEGV, current); return 0; -} +} /* * Set up a signal frame. @@ -489,6 +489,7 @@ handle_signal(unsigned long sig, struct k_sigaction *ka, siginfo_t *info, if (regs->tra >= 0) { /* If so, check system call restarting.. */ switch (regs->regs[0]) { + case -ERESTART_RESTARTBLOCK: case -ERESTARTNOHAND: regs->regs[0] = -EINTR; break; @@ -584,8 +585,8 @@ static void do_signal(struct pt_regs *regs, unsigned int save_r0) signr = get_signal_to_deliver(&info, &ka, regs, NULL); if (signr > 0) { /* Whee! Actually deliver the signal. */ - if (handle_signal(signr, &ka, &info, oldset, regs, save_r0) - == 0) { + if (handle_signal(signr, &ka, &info, oldset, + regs, save_r0) == 0) { /* a signal was successfully delivered; the saved * sigmask will have been stored in the signal frame, * and will be restored by sigreturn, so we can simply |