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| author | Ira Weiny <ira.weiny@intel.com> | 2020-06-04 16:47:46 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-06-04 19:06:22 -0700 |
| commit | abca2500c0c1b20c3e552f259da4c4a99db3b4d1 (patch) | |
| tree | 3913a59673f03cdf62b74570102dfb99b7b9f834 /arch/csky | |
| parent | 78b6d91ec7bbfc5bcc2dd05bb2cf13c9de1dc7cd (diff) | |
| download | linux-stable-abca2500c0c1b20c3e552f259da4c4a99db3b4d1.tar.gz linux-stable-abca2500c0c1b20c3e552f259da4c4a99db3b4d1.tar.bz2 linux-stable-abca2500c0c1b20c3e552f259da4c4a99db3b4d1.zip | |
arch/kunmap_atomic: consolidate duplicate code
Every single architecture (including !CONFIG_HIGHMEM) calls...
pagefault_enable();
preempt_enable();
... before returning from __kunmap_atomic(). Lift this code into the
kunmap_atomic() macro.
While we are at it rename __kunmap_atomic() to kunmap_atomic_high() to
be consistent.
[ira.weiny@intel.com: don't enable pagefault/preempt twice]
Link: http://lkml.kernel.org/r/20200518184843.3029640-1-ira.weiny@intel.com
[akpm@linux-foundation.org: coding style fixes]
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>
Cc: Guenter Roeck <linux@roeck-us.net>
Link: http://lkml.kernel.org/r/20200507150004.1423069-8-ira.weiny@intel.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/csky')
| -rw-r--r-- | arch/csky/include/asm/highmem.h | 1 | ||||
| -rw-r--r-- | arch/csky/mm/highmem.c | 9 |
2 files changed, 3 insertions, 7 deletions
diff --git a/arch/csky/include/asm/highmem.h b/arch/csky/include/asm/highmem.h index 8ceee12f9bc1..263fbddcd0a3 100644 --- a/arch/csky/include/asm/highmem.h +++ b/arch/csky/include/asm/highmem.h @@ -32,7 +32,6 @@ extern pte_t *pkmap_page_table; #define ARCH_HAS_KMAP_FLUSH_TLB extern void kmap_flush_tlb(unsigned long addr); -extern void __kunmap_atomic(void *kvaddr); extern void *kmap_atomic_pfn(unsigned long pfn); extern struct page *kmap_atomic_to_page(void *ptr); diff --git a/arch/csky/mm/highmem.c b/arch/csky/mm/highmem.c index 63d74b47eee6..0aafbbbe651c 100644 --- a/arch/csky/mm/highmem.c +++ b/arch/csky/mm/highmem.c @@ -39,13 +39,13 @@ void *kmap_atomic_high(struct page *page) } EXPORT_SYMBOL(kmap_atomic_high); -void __kunmap_atomic(void *kvaddr) +void kunmap_atomic_high(void *kvaddr) { unsigned long vaddr = (unsigned long) kvaddr & PAGE_MASK; int idx; if (vaddr < FIXADDR_START) - goto out; + return; #ifdef CONFIG_DEBUG_HIGHMEM idx = KM_TYPE_NR*smp_processor_id() + kmap_atomic_idx(); @@ -58,11 +58,8 @@ void __kunmap_atomic(void *kvaddr) (void) idx; /* to kill a warning */ #endif kmap_atomic_idx_pop(); -out: - pagefault_enable(); - preempt_enable(); } -EXPORT_SYMBOL(__kunmap_atomic); +EXPORT_SYMBOL(kunmap_atomic_high); /* * This is the same as kmap_atomic() but can map memory that doesn't |