mmap locking API: convert mmap_sem comments
Convert comments that reference mmap_sem to reference mmap_lock instead. [akpm@linux-foundation.org: fix up linux-next leftovers] [akpm@linux-foundation.org: s/lockaphore/lock/, per Vlastimil] [akpm@linux-foundation.org: more linux-next fixups, per Michel] Signed-off-by: Michel Lespinasse <walken@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Vlastimil Babka <vbabka@suse.cz> Reviewed-by: Daniel Jordan <daniel.m.jordan@oracle.com> Cc: Davidlohr Bueso <dbueso@suse.de> Cc: David Rientjes <rientjes@google.com> Cc: Hugh Dickins <hughd@google.com> Cc: Jason Gunthorpe <jgg@ziepe.ca> Cc: Jerome Glisse <jglisse@redhat.com> Cc: John Hubbard <jhubbard@nvidia.com> Cc: Laurent Dufour <ldufour@linux.ibm.com> Cc: Liam Howlett <Liam.Howlett@oracle.com> Cc: Matthew Wilcox <willy@infradead.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ying Han <yinghan@google.com> Link: http://lkml.kernel.org/r/20200520052908.204642-13-walken@google.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Linus Torvalds

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@@ -42,7 +42,7 @@ static inline int is_gru_paddr(unsigned long paddr)
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}
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/*
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* Find the vma of a GRU segment. Caller must hold mmap_sem.
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* Find the vma of a GRU segment. Caller must hold mmap_lock.
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*/
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struct vm_area_struct *gru_find_vma(unsigned long vaddr)
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{
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@@ -58,7 +58,7 @@ struct vm_area_struct *gru_find_vma(unsigned long vaddr)
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* Find and lock the gts that contains the specified user vaddr.
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*
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* Returns:
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* - *gts with the mmap_sem locked for read and the GTS locked.
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* - *gts with the mmap_lock locked for read and the GTS locked.
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* - NULL if vaddr invalid OR is not a valid GSEG vaddr.
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*/
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@@ -198,7 +198,7 @@ static int non_atomic_pte_lookup(struct vm_area_struct *vma,
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* Only supports Intel large pages (2MB only) on x86_64.
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* ZZZ - hugepage support is incomplete
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*
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* NOTE: mmap_sem is already held on entry to this function. This
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* NOTE: mmap_lock is already held on entry to this function. This
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* guarantees existence of the page tables.
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*/
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static int atomic_pte_lookup(struct vm_area_struct *vma, unsigned long vaddr,
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@@ -569,7 +569,7 @@ static irqreturn_t gru_intr(int chiplet, int blade)
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}
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/*
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* This is running in interrupt context. Trylock the mmap_sem.
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* This is running in interrupt context. Trylock the mmap_lock.
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* If it fails, retry the fault in user context.
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*/
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gts->ustats.fmm_tlbmiss++;
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