lkml.org 
[lkml]   [2020]   [Apr]   [30]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: [PATCH V1 09/10] arch/kmap: Define kmap_atomic_prot() for all arch's
    On Thu, Apr 30, 2020 at 01:38:44PM -0700, ira.weiny@intel.com wrote:

    > -static inline void *kmap_atomic(struct page *page)
    > +static inline void *kmap_atomic_prot(struct page *page, pgprot_t prot)
    > {
    > preempt_disable();
    > pagefault_disable();
    > if (!PageHighMem(page))
    > return page_address(page);
    > - return kmap_atomic_high(page);
    > + return kmap_atomic_high_prot(page, prot);
    > }
    > +#define kmap_atomic(page) kmap_atomic_prot(page, kmap_prot)

    OK, so it *was* just a bisect hazard - you return to original semantics
    wrt preempt_disable()...

    \
     
     \ /
      Last update: 2020-05-01 04:38    [W:4.185 / U:0.292 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site