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authorLinus Torvalds <torvalds@linux-foundation.org>2012-05-25 15:59:38 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2012-05-25 15:59:38 -0700
commitfa2af6e4fe0c4d2f8875d42625b25675e8584010 (patch)
treeef9a92949858ab763aa1bfda7cb11a5f7b84d123 /arch/tile/kernel/process.c
parent109b9b0408e5f1dd327a44f446841a9fbe0bcd83 (diff)
parent1fcb78e9da714d96f65edd37b29dae3b1f7df508 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile
Pull tile updates from Chris Metcalf: "These changes cover a range of new arch/tile features and optimizations. They've been through LKML review and on linux-next for a month or so. There's also one bug-fix that just missed 3.4, which I've marked for stable." Fixed up trivial conflict in arch/tile/Kconfig (new added tile Kconfig entries clashing with the generic timer/clockevents changes). * git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile: tile: default to tilegx_defconfig for ARCH=tile tile: fix bug where fls(0) was not returning 0 arch/tile: mark TILEGX as not EXPERIMENTAL tile/mm/fault.c: Port OOM changes to handle_page_fault arch/tile: add descriptive text if the kernel reports a bad trap arch/tile: allow querying cpu module information from the hypervisor arch/tile: fix hardwall for tilegx and generalize for idn and ipi arch/tile: support multiple huge page sizes dynamically mm: add new arch_make_huge_pte() method for tile support arch/tile: support kexec() for tilegx arch/tile: support <asm/cachectl.h> header for cacheflush() syscall arch/tile: Allow tilegx to build with either 16K or 64K page size arch/tile: optimize get_user/put_user and friends arch/tile: support building big-endian kernel arch/tile: allow building Linux with transparent huge pages enabled arch/tile: use interrupt critical sections less
Diffstat (limited to 'arch/tile/kernel/process.c')
-rw-r--r--arch/tile/kernel/process.c16
1 files changed, 6 insertions, 10 deletions
diff --git a/arch/tile/kernel/process.c b/arch/tile/kernel/process.c
index f572c19c408..ba1023d8a02 100644
--- a/arch/tile/kernel/process.c
+++ b/arch/tile/kernel/process.c
@@ -128,10 +128,10 @@ void arch_release_thread_info(struct thread_info *info)
* Calling deactivate here just frees up the data structures.
* If the task we're freeing held the last reference to a
* hardwall fd, it would have been released prior to this point
- * anyway via exit_files(), and "hardwall" would be NULL by now.
+ * anyway via exit_files(), and the hardwall_task.info pointers
+ * would be NULL by now.
*/
- if (info->task->thread.hardwall)
- hardwall_deactivate(info->task);
+ hardwall_deactivate_all(info->task);
#endif
if (step_state) {
@@ -245,7 +245,8 @@ int copy_thread(unsigned long clone_flags, unsigned long sp,
#ifdef CONFIG_HARDWALL
/* New thread does not own any networks. */
- p->thread.hardwall = NULL;
+ memset(&p->thread.hardwall[0], 0,
+ sizeof(struct hardwall_task) * HARDWALL_TYPES);
#endif
@@ -515,12 +516,7 @@ struct task_struct *__sched _switch_to(struct task_struct *prev,
#ifdef CONFIG_HARDWALL
/* Enable or disable access to the network registers appropriately. */
- if (prev->thread.hardwall != NULL) {
- if (next->thread.hardwall == NULL)
- restrict_network_mpls();
- } else if (next->thread.hardwall != NULL) {
- grant_network_mpls();
- }
+ hardwall_switch_tasks(prev, next);
#endif
/*