Thomas Gleixner c08b8a4910 [PATCH] sys_alarm() unsigned signed conversion fixup ... alarm() calls the kernel with an unsigend int timeout in seconds. The value is stored in the tv_sec field of a struct timeval to setup the itimer. The tv_sec field of struct timeval is of type long, which causes the tv_sec value to be negative on 32 bit machines if seconds > INT_MAX. Before the hrtimer merge (pre 2.6.16) such a negative value was converted to the maximum jiffies timeout by the timeval_to_jiffies conversion. It's not clear whether this was intended or just happened to be done by the timeval_to_jiffies code. hrtimers expect a timeval in canonical form and treat a negative timeout as already expired. This breaks the legitimate usage of alarm() with a timeout value > INT_MAX seconds. For 32 bit machines it is therefor necessary to limit the internal seconds value to avoid API breakage. Instead of doing this in all implementations of sys_alarm the duplicated sys_alarm code is moved into a common function in itimer.c Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>		2006-03-25 08:22:48 -08:00
..
alpha	[PATCH] remove set_page_count() outside mm/	2006-03-22 07:54:02 -08:00
arm	[PATCH] s/;;/;/g	2006-03-24 07:33:24 -08:00
arm26	[PATCH] remove set_page_count() outside mm/	2006-03-22 07:54:02 -08:00
cris	[PATCH] set_page_dirty() return value fixes	2006-03-24 07:33:26 -08:00
frv	[PATCH] s/;;/;/g	2006-03-24 07:33:24 -08:00
h8300	[PATCH] kill include/linux/platform.h, default_idle() cleanup	2006-03-24 07:33:21 -08:00
i386	[PATCH] fix DMI onboard device discovery	2006-03-25 08:22:48 -08:00
ia64	[PATCH] sys_alarm() unsigned signed conversion fixup	2006-03-25 08:22:48 -08:00
m32r	[PATCH] more for_each_cpu() conversions	2006-03-23 07:38:17 -08:00
m68k	[PATCH] kill include/linux/platform.h, default_idle() cleanup	2006-03-24 07:33:21 -08:00
m68knommu	[PATCH] kill include/linux/platform.h, default_idle() cleanup	2006-03-24 07:33:21 -08:00
mips	[PATCH] sys_alarm() unsigned signed conversion fixup	2006-03-25 08:22:48 -08:00
parisc	[PATCH] kill include/linux/platform.h, default_idle() cleanup	2006-03-24 07:33:21 -08:00
powerpc	[PATCH] more for_each_cpu() conversions	2006-03-23 07:38:17 -08:00
ppc	[PATCH] s/;;/;/g	2006-03-24 07:33:24 -08:00
s390	[PATCH] kill include/linux/platform.h, default_idle() cleanup	2006-03-24 07:33:21 -08:00
sh	[PATCH] kill include/linux/platform.h, default_idle() cleanup	2006-03-24 07:33:21 -08:00
sh64	[PATCH] more for_each_cpu() conversions	2006-03-23 07:38:17 -08:00
sparc	[PATCH] more for_each_cpu() conversions	2006-03-23 07:38:17 -08:00
sparc64	[PATCH] s/;;/;/g	2006-03-24 07:33:24 -08:00
um	[PATCH] x86: SMP alternatives	2006-03-23 07:38:04 -08:00
v850	[PATCH] kill include/linux/platform.h, default_idle() cleanup	2006-03-24 07:33:21 -08:00
x86_64	[PATCH] sys_alarm() unsigned signed conversion fixup	2006-03-25 08:22:48 -08:00
xtensa	[PATCH] more for_each_cpu() conversions	2006-03-23 07:38:17 -08:00