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author | 2020-06-08 21:33:54 -0700 | |
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committer | 2020-06-09 09:39:14 -0700 | |
commit | c1e8d7c6a7a682e1405e3e242d32fc377fd196ff (patch) | |
tree | ef02402b77990834fbb5bdb1f146fc0393cc8987 /include/linux/pgtable.h | |
parent | mmap locking API: convert mmap_sem API comments (diff) | |
download | linux-c1e8d7c6a7a682e1405e3e242d32fc377fd196ff.tar.gz linux-c1e8d7c6a7a682e1405e3e242d32fc377fd196ff.tar.bz2 linux-c1e8d7c6a7a682e1405e3e242d32fc377fd196ff.zip |
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>
Diffstat (limited to 'include/linux/pgtable.h')
-rw-r--r-- | include/linux/pgtable.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/include/linux/pgtable.h b/include/linux/pgtable.h index 90a5d0c78fca..32b6c52d41b9 100644 --- a/include/linux/pgtable.h +++ b/include/linux/pgtable.h @@ -1134,11 +1134,11 @@ static inline pmd_t pmd_read_atomic(pmd_t *pmdp) #endif /* * This function is meant to be used by sites walking pagetables with - * the mmap_sem hold in read mode to protect against MADV_DONTNEED and + * the mmap_lock held in read mode to protect against MADV_DONTNEED and * transhuge page faults. MADV_DONTNEED can convert a transhuge pmd * into a null pmd and the transhuge page fault can convert a null pmd * into an hugepmd or into a regular pmd (if the hugepage allocation - * fails). While holding the mmap_sem in read mode the pmd becomes + * fails). While holding the mmap_lock in read mode the pmd becomes * stable and stops changing under us only if it's not null and not a * transhuge pmd. When those races occurs and this function makes a * difference vs the standard pmd_none_or_clear_bad, the result is @@ -1148,7 +1148,7 @@ static inline pmd_t pmd_read_atomic(pmd_t *pmdp) * * For 32bit kernels with a 64bit large pmd_t this automatically takes * care of reading the pmd atomically to avoid SMP race conditions - * against pmd_populate() when the mmap_sem is hold for reading by the + * against pmd_populate() when the mmap_lock is hold for reading by the * caller (a special atomic read not done by "gcc" as in the generic * version above, is also needed when THP is disabled because the page * fault can populate the pmd from under us). |