• Peter Zijlstra's avatar
    asm-generic/tlb, arch: Invert CONFIG_HAVE_RCU_TABLE_INVALIDATE · 96bc9567
    Peter Zijlstra authored
    Make issuing a TLB invalidate for page-table pages the normal case.
    
    The reason is twofold:
    
     - too many invalidates is safer than too few,
     - most architectures use the linux page-tables natively
       and would thus require this.
    
    Make it an opt-out, instead of an opt-in.
    
    No change in behavior intended.
    Signed-off-by: default avatarPeter Zijlstra (Intel) <peterz@infradead.org>
    Acked-by: default avatarWill Deacon <will.deacon@arm.com>
    Cc: Andrew Morton <akpm@linux-foundation.org>
    Cc: Andy Lutomirski <luto@kernel.org>
    Cc: Borislav Petkov <bp@alien8.de>
    Cc: Dave Hansen <dave.hansen@linux.intel.com>
    Cc: H. Peter Anvin <hpa@zytor.com>
    Cc: Linus Torvalds <torvalds@linux-foundation.org>
    Cc: Peter Zijlstra <peterz@infradead.org>
    Cc: Rik van Riel <riel@surriel.com>
    Cc: Thomas Gleixner <tglx@linutronix.de>
    Signed-off-by: default avatarIngo Molnar <mingo@kernel.org>
    96bc9567
Kconfig 48.9 KB