Messages in this thread | | | Subject | Re: [RFC v3 PATCH 04/10] mm/hugetlb: expose hugetlb fault mutex for use by fallocate | From | Davidlohr Bueso <> | Date | Fri, 22 May 2015 10:01:17 -0700 |
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On Thu, 2015-05-21 at 08:47 -0700, Mike Kravetz wrote: > +/* > + * Interfaces to the fault mutex routines for use by hugetlbfs > + * fallocate code. Faults must be synchronized with page adds or > + * deletes by fallocate. fallocate only deals with shared mappings. > + */ > +u32 hugetlb_fault_mutex_shared_hash(struct address_space *mapping, pgoff_t idx) > +{ > + return fault_mutex_hash(NULL, NULL, NULL, mapping, idx, 0); > +} > + > +void hugetlb_fault_mutex_lock(u32 hash) > +{ > + mutex_lock(&htlb_fault_mutex_table[hash]); > +} > + > +void hugetlb_fault_mutex_unlock(u32 hash) > +{ > + mutex_unlock(&htlb_fault_mutex_table[hash]); > +}+
These should really be inlined -- maybe add them to hugetlb.h along with the mutex hashtable bits.
Thanks, Davidlohr
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