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Merge git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile

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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
This commit is contained in:
Linus Torvalds
2012-05-25 15:59:38 -07:00
parent 109b9b0408 1fcb78e9da
commit fa2af6e4fe
74 changed files with 2472 additions and 1170 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
arch/tile/kernel/process.c
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@@ -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
/*