John David Anglin bda079d336 parisc: use spin_lock_irqsave/spin_unlock_irqrestore for PTE updates ... User applications running on SMP kernels have long suffered from instability and random segmentation faults. This patch improves the situation although there is more work to be done. One of the problems is the various routines in pgtable.h that update page table entries use different locking mechanisms, or no lock at all (set_pte_at). This change modifies the routines to all use the same lock pa_dbit_lock. This lock is used for dirty bit updates in the interruption code. The patch also purges the TLB entries associated with the PTE to ensure that inconsistent values are not used after the page table entry is updated. The UP and SMP code are now identical. The change also includes a minor update to the purge_tlb_entries function in cache.c to improve its efficiency. Signed-off-by: John David Anglin <dave.anglin@bell.net> Cc: Helge Deller <deller@gmx.de> Signed-off-by: Helge Deller <deller@gmx.de>		2013-04-25 22:37:00 +02:00
..
configs	kconfig: rename CONFIG_EMBEDDED to CONFIG_EXPERT	2011-01-20 17:02:05 -08:00
hpux	[PARISC] hpux: Remove obsolete regs parameter from do_execve() in hpux_execve()	2013-01-30 13:26:57 +11:00
include	parisc: use spin_lock_irqsave/spin_unlock_irqrestore for PTE updates	2013-04-25 22:37:00 +02:00
kernel	parisc: use spin_lock_irqsave/spin_unlock_irqrestore for PTE updates	2013-04-25 22:37:00 +02:00
lib	parisc: Provide __ucmpdi2 to resolve undefined references in 32 bit builds.	2013-04-25 22:36:15 +02:00
math-emu	parisc: avoid undefined shift in cnv_float.h	2013-01-07 23:06:22 +01:00
mm	parisc/mm/fault.c: Port OOM changes to do_page_fault	2013-02-20 22:51:31 +01:00
oprofile	oprofile: more whitespace fixes	2008-10-15 20:55:51 +02:00
defpalo.conf
install.sh	kbuild: use INSTALLKERNEL to select customized installkernel script	2009-09-20 12:18:14 +02:00
Kconfig	Select VIRT_TO_BUS directly where needed	2013-03-12 11:16:40 -07:00
Kconfig.debug	parisc: add strict copy size checks (v2)	2010-03-06 22:54:09 +00:00
Makefile	parisc: disable -mlong-calls compiler option for kernel modules	2013-04-25 22:36:50 +02:00
nm