[PATCH] BLOCK: Revert patch to hack around undeclared sigset_t in linux/compat.h

Revert Andrew Morton's patch to temporarily hack around the lack of a
declaration of sigset_t in linux/compat.h to make the block-disablement
patches build on IA64.  This got accidentally pushed to Linus and should
be fixed in a different manner.

Also make linux/compat.h #include asm/signal.h to gain a definition of
sigset_t so that it can externally declare sigset_from_compat().

This has been compile-tested for i386, x86_64, ia64, mips, mips64, frv, ppc and
ppc64 and run-tested on frv.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

4 files changed, 3 insertions, 6 deletions

diff --git a/arch/mips/kernel/signal_n32.c b/arch/mips/kernel/signal_n32.c
index 50c17eaa7f25..477c5334ec1b 100644
--- a/arch/mips/kernel/signal_n32.c
+++ b/arch/mips/kernel/signal_n32.c
@@ -42,8 +42,6 @@
 
 #include "signal-common.h"
 
-extern void sigset_from_compat(sigset_t *set, compat_sigset_t *compat);
-
 /*
  * Including <asm/unistd.h> would give use the 64-bit syscall numbers ...
  */
@@ -83,6 +81,8 @@ struct rt_sigframe_n32 {
 #endif
 };
 
+extern void sigset_from_compat (sigset_t *set, compat_sigset_t *compat);
+
 save_static_function(sysn32_rt_sigsuspend);
 __attribute_used__ noinline static int
 _sysn32_rt_sigsuspend(nabi_no_regargs struct pt_regs regs)
diff --git a/fs/compat.c b/fs/compat.c
index 13fb08d096c4..d98c96f4a44d 100644
--- a/fs/compat.c
+++ b/fs/compat.c
@@ -56,8 +56,6 @@
 
 int compat_log = 1;
 
-extern void sigset_from_compat(sigset_t *set, compat_sigset_t *compat);
-
 int compat_printk(const char *fmt, ...)
 {
         va_list ap;
diff --git a/include/linux/compat.h b/include/linux/compat.h
index 9760753e662b..6f110957cc97 100644
--- a/include/linux/compat.h
+++ b/include/linux/compat.h
@@ -13,6 +13,7 @@
 
 #include <asm/compat.h>
 #include <asm/siginfo.h>
+#include <asm/signal.h>
 
 #define compat_jiffies_to_clock_t(x)    \
                 (((unsigned long)(x) * COMPAT_USER_HZ) / HZ)
diff --git a/kernel/compat.c b/kernel/compat.c
index b4fbd838cd77..75573e5d27b0 100644
--- a/kernel/compat.c
+++ b/kernel/compat.c
@@ -26,8 +26,6 @@
 
 #include <asm/uaccess.h>
 
-extern void sigset_from_compat(sigset_t *set, compat_sigset_t *compat);
-
 int get_compat_timespec(struct timespec *ts, const struct compat_timespec __user *cts)
 {
         return (!access_ok(VERIFY_READ, cts, sizeof(*cts)) ||