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| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2011-07-02 15:20:44 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2012-01-26 20:06:28 +0000 |
| commit | 67ece1443174d852e71c42facb3e2d7dd338c88a (patch) | |
| tree | 418359d432acfcb2ecc4c58c8afa5f73de4fa01e /arch/arm/mm/copypage-v4mc.c | |
| parent | 6e78df176141f2cb673bed7fa47825e3c6a8719f (diff) | |
| download | linux-67ece1443174d852e71c42facb3e2d7dd338c88a.tar.gz linux-67ece1443174d852e71c42facb3e2d7dd338c88a.tar.bz2 linux-67ece1443174d852e71c42facb3e2d7dd338c88a.zip | |
ARM: pgtable: consolidate set_pte_ext(TOP_PTE,...) + tlb flush
A number of places establish a PTE in our top page table and
immediately flush the TLB. Rather than having this at every callsite,
provide an inline function for this purpose.
This changes some global tlb flushes to be local; each time we setup
one of these mappings, we always do it with preemption disabled which
would prevent us migrating to another CPU.
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mm/copypage-v4mc.c')
| -rw-r--r-- | arch/arm/mm/copypage-v4mc.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/arch/arm/mm/copypage-v4mc.c b/arch/arm/mm/copypage-v4mc.c index e4dc2f491123..6e06180a8bc0 100644 --- a/arch/arm/mm/copypage-v4mc.c +++ b/arch/arm/mm/copypage-v4mc.c @@ -74,8 +74,7 @@ void v4_mc_copy_user_highpage(struct page *to, struct page *from, raw_spin_lock(&minicache_lock); - set_pte_ext(TOP_PTE(COPYPAGE_MINICACHE), mk_pte(from, minicache_pgprot), 0); - flush_tlb_kernel_page(COPYPAGE_MINICACHE); + set_top_pte(COPYPAGE_MINICACHE, mk_pte(from, minicache_pgprot)); mc_copy_user_page((void *)COPYPAGE_MINICACHE, kto); |