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mmap locking API: convert mmap_sem comments

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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>
This commit is contained in:
Michel Lespinasse
2020-06-08 21:33:54 -07:00
committed by Linus Torvalds
parent 3e4e28c5a8
commit c1e8d7c6a7
113 changed files with 351 additions and 352 deletions
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8
mm/mprotect.c
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@@ -49,7 +49,7 @@ static unsigned long change_pte_range(struct vm_area_struct *vma, pmd_t *pmd,
bool uffd_wp_resolve = cp_flags & MM_CP_UFFD_WP_RESOLVE;
/*
* Can be called with only the mmap_sem for reading by
* Can be called with only the mmap_lock for reading by
* prot_numa so we must check the pmd isn't constantly
* changing from under us from pmd_none to pmd_trans_huge
* and/or the other way around.
@@ -59,7 +59,7 @@ static unsigned long change_pte_range(struct vm_area_struct *vma, pmd_t *pmd,
/*
* The pmd points to a regular pte so the pmd can't change
* from under us even if the mmap_sem is only hold for
* from under us even if the mmap_lock is only hold for
* reading.
*/
pte = pte_offset_map_lock(vma->vm_mm, pmd, addr, &ptl);
@@ -228,7 +228,7 @@ static inline unsigned long change_pmd_range(struct vm_area_struct *vma,
next = pmd_addr_end(addr, end);
/*
* Automatic NUMA balancing walks the tables with mmap_sem
* Automatic NUMA balancing walks the tables with mmap_lock
* held for read. It's possible a parallel update to occur
* between pmd_trans_huge() and a pmd_none_or_clear_bad()
* check leading to a false positive and clearing.
@@ -477,7 +477,7 @@ mprotect_fixup(struct vm_area_struct *vma, struct vm_area_struct **pprev,
success:
/*
* vm_flags and vm_page_prot are protected by the mmap_sem
* vm_flags and vm_page_prot are protected by the mmap_lock
* held in write mode.
*/
vma->vm_flags = newflags;