[PATCH 2/2] pselect/ppoll support on x86_64

[David Woodhouse <dwmw2@infradead.org>]

This adds support for the pselect and ppoll system calls on x86_64. 

Andi suggests that it might be too late for the 2.6.18 merge window -- I
disagree. I consider it a bug fix, since I don't think we intend x86_64
to be a secondary architecture and lag behind i386 and PowerPC in its
system call support. Andi's TIF_RESTORE_SIGMASK implementation is
heavily based on the i386 version, where it's had lots of testing
already.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>

diff --git a/arch/x86_64/ia32/ia32entry.S b/arch/x86_64/ia32/ia32entry.S
index 5a92fed..07399fe 100644
--- a/arch/x86_64/ia32/ia32entry.S
+++ b/arch/x86_64/ia32/ia32entry.S
@@ -687,8 +687,8 @@ #endif
 	.quad sys_readlinkat		/* 305 */
 	.quad sys_fchmodat
 	.quad sys_faccessat
-	.quad quiet_ni_syscall		/* pselect6 for now */
-	.quad quiet_ni_syscall		/* ppoll for now */
+	.quad compat_sys_pselect6
+	.quad compat_sys_ppoll
 	.quad sys_unshare		/* 310 */
 	.quad compat_sys_set_robust_list
 	.quad compat_sys_get_robust_list
diff --git a/include/asm-x86_64/unistd.h b/include/asm-x86_64/unistd.h
index feb77cb..0a08bbf 100644
--- a/include/asm-x86_64/unistd.h
+++ b/include/asm-x86_64/unistd.h
@@ -600,9 +600,9 @@ __SYSCALL(__NR_fchmodat, sys_fchmodat)
 #define __NR_faccessat		269
 __SYSCALL(__NR_faccessat, sys_faccessat)
 #define __NR_pselect6		270
-__SYSCALL(__NR_pselect6, sys_ni_syscall)	/* for now */
+__SYSCALL(__NR_pselect6, sys_pselect6)
 #define __NR_ppoll		271
-__SYSCALL(__NR_ppoll,	sys_ni_syscall)		/* for now */
+__SYSCALL(__NR_ppoll,	sys_ppoll)
 #define __NR_unshare		272
 __SYSCALL(__NR_unshare,	sys_unshare)
 #define __NR_set_robust_list	273


-- 
dwmw2

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