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| author |   Ira Weiny <ira.weiny@intel.com> | 2020-06-04 16:47:30 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2020-06-04 19:06:22 -0700 |
| commit | 525aaf9bad00e7454b9f9b3873e92795afb59f8e (patch) | |
| tree | b1ad90f6b58e914258edc6ab226b62246e2802ef /arch/arc | |
| parent | arch/xtensa: move kmap build bug out of the way (diff) | |
| download | linux-dev-525aaf9bad00e7454b9f9b3873e92795afb59f8e.tar.xz linux-dev-525aaf9bad00e7454b9f9b3873e92795afb59f8e.zip | |
arch/kmap: remove redundant arch specific kmaps
The kmap code for all the architectures is almost 100% identical.
Lift the common code to the core. Use ARCH_HAS_KMAP_FLUSH_TLB to indicate
if an arch defines kmap_flush_tlb() and call if if needed.
This also has the benefit of changing kmap() on a number of architectures
to be an inline call rather than an actual function.
Signed-off-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Christian König <christian.koenig@amd.com>
Cc: Chris Zankel <chris@zankel.net>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Helge Deller <deller@gmx.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/20200507150004.1423069-4-ira.weiny@intel.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/arc')
| -rw-r--r-- | arch/arc/include/asm/highmem.h | 2 | ||||
| -rw-r--r-- | arch/arc/mm/highmem.c | 10 |
2 files changed, 0 insertions, 12 deletions
diff --git a/arch/arc/include/asm/highmem.h b/arch/arc/include/asm/highmem.h index 042e92921c4c..96eb67c86961 100644 --- a/arch/arc/include/asm/highmem.h +++ b/arch/arc/include/asm/highmem.h @@ -30,8 +30,6 @@ #include <asm/cacheflush.h> -extern void *kmap(struct page *page); -extern void *kmap_high(struct page *page); extern void *kmap_atomic(struct page *page); extern void __kunmap_atomic(void *kvaddr); extern void kunmap_high(struct page *page); diff --git a/arch/arc/mm/highmem.c b/arch/arc/mm/highmem.c index 39ef7b9a3aa9..4db13a6b9f3b 100644 --- a/arch/arc/mm/highmem.c +++ b/arch/arc/mm/highmem.c @@ -49,16 +49,6 @@ extern pte_t * pkmap_page_table; static pte_t * fixmap_page_table; -void *kmap(struct page *page) -{ - might_sleep(); - if (!PageHighMem(page)) - return page_address(page); - - return kmap_high(page); -} -EXPORT_SYMBOL(kmap); - void *kmap_atomic(struct page *page) { int idx, cpu_idx; |