diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-05-24 15:10:28 -0700 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-05-24 15:10:28 -0700 |
commit | ce004178be1bbaa292e9e6497939e2970300095a (patch) | |
tree | 1cd5306548947deaedd612189b56d35265217e8e /arch/sparc/mm/srmmu.c | |
parent | 9978306e31a8f89bd81fbc4c49fd9aefb1d30d10 (diff) | |
parent | c5389831cda3b38a56606a348a537a1332f2d729 (diff) |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc
Pull sparc changes from David S. Miller:
"This has the generic strncpy_from_user() implementation architectures
can now use, which we've been developing on linux-arch over the past
few days.
For good measure I ran both a 32-bit and a 64-bit glibc testsuite run,
and the latter of which pointed out an adjustment I needed to make to
sparc's user_addr_max() definition. Linus, you were right, STACK_TOP
was not the right thing to use, even on sparc itself :-)
From Sam Ravnborg, we have a conversion of sparc32 over to the common
alloc_thread_info_node(), since the aspect which originally blocked
our doing so (sun4c) has been removed."
Fix up trivial arch/sparc/Kconfig and lib/Makefile conflicts.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
sparc: Fix user_addr_max() definition.
lib: Sparc's strncpy_from_user is generic enough, move under lib/
kernel: Move REPEAT_BYTE definition into linux/kernel.h
sparc: Increase portability of strncpy_from_user() implementation.
sparc: Optimize strncpy_from_user() zero byte search.
sparc: Add full proper error handling to strncpy_from_user().
sparc32: use the common implementation of alloc_thread_info_node()
Diffstat (limited to 'arch/sparc/mm/srmmu.c')
-rw-r--r-- | arch/sparc/mm/srmmu.c | 27 |
1 files changed, 0 insertions, 27 deletions
diff --git a/arch/sparc/mm/srmmu.c b/arch/sparc/mm/srmmu.c index 8e97e0305b01..256db6b22c54 100644 --- a/arch/sparc/mm/srmmu.c +++ b/arch/sparc/mm/srmmu.c @@ -467,33 +467,6 @@ void srmmu_unmapiorange(unsigned long virt_addr, unsigned int len) flush_tlb_all(); } -/* - * On the SRMMU we do not have the problems with limited tlb entries - * for mapping kernel pages, so we just take things from the free page - * pool. As a side effect we are putting a little too much pressure - * on the gfp() subsystem. This setup also makes the logic of the - * iommu mapping code a lot easier as we can transparently handle - * mappings on the kernel stack without any special code. - */ -struct thread_info *alloc_thread_info_node(struct task_struct *tsk, int node) -{ - struct thread_info *ret; - - ret = (struct thread_info *)__get_free_pages(GFP_KERNEL, - THREAD_INFO_ORDER); -#ifdef CONFIG_DEBUG_STACK_USAGE - if (ret) - memset(ret, 0, PAGE_SIZE << THREAD_INFO_ORDER); -#endif /* DEBUG_STACK_USAGE */ - - return ret; -} - -void free_thread_info(struct thread_info *ti) -{ - free_pages((unsigned long)ti, THREAD_INFO_ORDER); -} - /* tsunami.S */ extern void tsunami_flush_cache_all(void); extern void tsunami_flush_cache_mm(struct mm_struct *mm); |