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606572634c
linux_dsm_epyc7002/arch
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Jeremy Kerr 606572634c powerpc/spufs: Fix spinning in spufs_ps_fault on signal 
Currently, we can end up in an infinite loop if we get a signal
while the kernel has faulted in spufs_ps_fault. Eg:

 alarm(1);

 write(fd, some_spu_psmap_register_address, 4);

- the write's copy_from_user will fault on the ps mapping, and
signal_pending will be non-zero. Because returning from the fault
handler will never clear TIF_SIGPENDING, so we'll just keep faulting,
resulting in an unkillable process using 100% of CPU.

This change returns VM_FAULT_SIGBUS if there's a fatal signal pending,
letting us escape the loop.

Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
2008-11-21 10:14:16 +11:00
..
alpha Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 2008-10-13 17:13:56 +01:00
arm i2c/isp1301_omap: Convert to a new-style i2c driver, part 2 2008-10-14 17:30:02 +02:00
avr32 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 2008-10-13 17:13:56 +01:00
blackfin Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6 2008-10-13 10:08:43 -07:00
cris Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 2008-10-13 17:13:56 +01:00
frv FRV: Wire up new system calls 2008-08-01 13:03:49 -07:00
h8300 Remove asm/a.out.h files for all architectures without a.out support. 2008-09-06 19:30:24 +01:00
ia64 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 2008-10-13 17:13:56 +01:00
m32r Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 2008-10-13 17:13:56 +01:00
m68k arch/m68k/mm/kmap.c: introduce missing kfree 2008-10-14 10:23:27 -07:00
m68knommu Remove asm/a.out.h files for all architectures without a.out support. 2008-09-06 19:30:24 +01:00
mips MIPS: Kill unused <asm/debug.h> inclusions 2008-10-15 12:46:52 +01:00
mn10300 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 2008-10-13 17:13:56 +01:00
parisc Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 2008-10-13 17:13:56 +01:00
powerpc powerpc/spufs: Fix spinning in spufs_ps_fault on signal 2008-11-21 10:14:16 +11:00
s390 vfs: Use const for kernel parser table 2008-10-13 10:10:37 -07:00
sh kernel/cpu.c: create a CPU_STARTING cpu_chain notifier 2008-09-08 19:25:24 +02:00
sparc Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6 2008-10-13 10:07:53 -07:00
sparc64 chmc: Mark %ver register inline asm with __volatile__ 2008-10-12 23:56:12 -07:00
um Merge git://git.infradead.org/users/dwmw2/random-2.6 2008-10-13 09:59:14 -07:00
x86 x86: register a platform RTC device if PNP doesn't describe it 2008-10-14 16:30:14 -07:00
xtensa xtensa: remove dead CONFIG_BLK_DEV_IDE code 2008-10-13 21:39:34 +02:00
.gitignore
Kconfig Merge branch 'linus' into oprofile-v2 2008-10-13 11:05:51 +02:00