From: Deepa Dinamani <deepa.kernel@gmail.com>
To: arnd@arndb.de, tglx@linutronix.de, john.stultz@linaro.org
Cc: linux-kernel@vger.kernel.org, y2038@lists.linaro.org
Subject: [PATCH v5 01/10] compat: Make compat helpers independent of CONFIG_COMPAT
Date: Tue, 13 Mar 2018 21:03:24 -0700 [thread overview]
Message-ID: <20180314040333.3291-2-deepa.kernel@gmail.com> (raw)
In-Reply-To: <20180314040333.3291-1-deepa.kernel@gmail.com>
Many of the compat time syscalls are also repurposed as 32 bit
native syscalls to provide backward compatibility while adding
new y2038 safe sycalls.
Enabling the helpers makes this possible.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com>
---
include/linux/compat.h | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/include/linux/compat.h b/include/linux/compat.h
index 16c3027074a2..bdf1908a392e 100644
--- a/include/linux/compat.h
+++ b/include/linux/compat.h
@@ -8,8 +8,6 @@
#include <linux/types.h>
-#ifdef CONFIG_COMPAT
-
#include <linux/stat.h>
#include <linux/param.h> /* for HZ */
#include <linux/sem.h>
@@ -20,9 +18,11 @@
#include <linux/uaccess.h>
#include <linux/unistd.h>
+#ifdef CONFIG_COMPAT
#include <asm/compat.h>
#include <asm/siginfo.h>
#include <asm/signal.h>
+#endif
#ifndef COMPAT_USE_64BIT_TIME
#define COMPAT_USE_64BIT_TIME 0
@@ -59,6 +59,8 @@
} \
static inline long C_SYSC##name(__MAP(x,__SC_DECL,__VA_ARGS__))
+#ifdef CONFIG_COMPAT
+
#ifndef compat_user_stack_pointer
#define compat_user_stack_pointer() current_user_stack_pointer()
#endif
@@ -891,7 +893,9 @@ static inline struct compat_timeval ns_to_compat_timeval(s64 nsec)
#else /* !CONFIG_COMPAT */
#define is_compat_task() (0)
+#ifndef in_compat_syscall
static inline bool in_compat_syscall(void) { return false; }
+#endif
#endif /* CONFIG_COMPAT */
--
2.14.1
next prev parent reply other threads:[~2018-03-14 4:04 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-03-14 4:03 [PATCH v5 00/10] posix_clocks: Prepare syscalls for 64 bit time_t conversion Deepa Dinamani
2018-03-14 4:03 ` Deepa Dinamani [this message]
2018-03-14 4:03 ` [PATCH v5 02/10] include: Move compat_timespec/ timeval to compat_time.h Deepa Dinamani
2018-03-14 4:03 ` [PATCH v5 03/10] compat: enable compat_get/put_timespec64 always Deepa Dinamani
2018-03-14 4:03 ` [PATCH v5 04/10] arch: introduce CONFIG_64BIT_TIME Deepa Dinamani
2018-03-14 4:03 ` [PATCH v5 05/10] arch: Introduce CONFIG_COMPAT_32BIT_TIME Deepa Dinamani
2018-03-14 4:03 ` [PATCH v5 06/10] posix-clocks: Make compat syscalls depend on CONFIG_COMPAT_32BIT_TIME Deepa Dinamani
2018-03-14 4:03 ` [PATCH v5 07/10] include: Add new y2038 safe __kernel_timespec Deepa Dinamani
2018-03-14 4:03 ` [PATCH v5 08/10] fix get_timespec64() for y2038 safe compat interfaces Deepa Dinamani
2018-03-14 4:03 ` [PATCH v5 09/10] change time types to new y2038 safe __kernel_* types Deepa Dinamani
2018-03-14 4:03 ` [PATCH v5 10/10] nanosleep: change time types to " Deepa Dinamani
2018-03-14 16:12 ` [PATCH v5 00/10] posix_clocks: Prepare syscalls for 64 bit time_t conversion Arnd Bergmann
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