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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>		19 years ago
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acpi	[PATCH] s/;;/;/g	19 years ago
asm-alpha	[PATCH] remove ISA legacy functions: remove the helpers	19 years ago
asm-arm	…
asm-arm26	…
asm-cris	…
asm-frv	…
asm-generic	…
asm-h8300	…
asm-i386	…
asm-ia64	…
asm-m32r	…
asm-m68k	…
asm-m68knommu	…
asm-mips	[PATCH] abstract type/size specification for assembly	19 years ago
asm-parisc	…
asm-powerpc	…
asm-ppc	powerpc: Implement accurate task and CPU time accounting	19 years ago
asm-s390	…
asm-sh	…
asm-sh64	…
asm-sparc	…
asm-sparc64	[PATCH] more for_each_cpu() conversions	19 years ago
asm-um	…
asm-v850	[PATCH] abstract type/size specification for assembly	19 years ago
asm-x86_64	…
asm-xtensa	…
keys	…
linux	[PATCH] sys_alarm() unsigned signed conversion fixup	19 years ago
math-emu	…
media	…
mtd	…
net	…
pcmcia	…
rdma	…
rxrpc	…
scsi	[PATCH] Make libata not powerdown drivers on PM_EVENT_FREEZE.	19 years ago
sound	…
video	…