On 02/21/24 at 04:15pm, Kirill A. Shutemov wrote: > On Wed, Feb 21, 2024 at 10:37:29AM +0800, Baoquan He wrote: > > > diff --git a/arch/x86/mm/pat/set_memory.c b/arch/x86/mm/pat/set_memory.c > > > index 3612e3167147..425ff6e192e6 100644 > > > --- a/arch/x86/mm/pat/set_memory.c > > > +++ b/arch/x86/mm/pat/set_memory.c > > > @@ -657,7 +657,8 @@ static inline pgprot_t verify_rwx(pgprot_t old, > > > pgprot_t new, unsigned long star > > > > > > /* > > > * Lookup the page table entry for a virtual address in a specific pgd. > > > - * Return a pointer to the entry and the level of the mapping. > > > + * Return a pointer to the entry and the level of the mapping (or NULL if > > > + * the entry is none) and level of the entry. > > ^ this right parenthesis may need be moved to the > > end. > > > > > > ======= > > * Return a pointer to the entry and the level of the mapping (or NULL if > > * the entry is none and level of the entry). > > ======= > > Emm.. I like my variant more. We return level regardless if the entry none > or not. I don't see a reason to repeat it twice.
* Lookup the page table entry for a virtual address in a specific pgd. * Return a pointer to the entry and the level of the mapping (or NULL if * the entry is none) and level of the entry. Hmm, I am confused. Why do we need to stress the level of the mapping and level of the entry? Wondering what is the difference. I must miss something. _______________________________________________ kexec mailing list [email protected] http://lists.infradead.org/mailman/listinfo/kexec
