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authorMichel Lespinasse <walken@google.com>2020-06-08 21:33:54 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2020-06-09 09:39:14 -0700
commitc1e8d7c6a7a682e1405e3e242d32fc377fd196ff (patch)
treeef02402b77990834fbb5bdb1f146fc0393cc8987 /mm/mempolicy.c
parent3e4e28c5a8f01ee4174d639e36ed155ade489a6f (diff)
downloadlinux-c1e8d7c6a7a682e1405e3e242d32fc377fd196ff.tar.bz2
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 'mm/mempolicy.c')
-rw-r--r--mm/mempolicy.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index a38cd4cc3206..381320671677 100644
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -224,7 +224,7 @@ static int mpol_new_bind(struct mempolicy *pol, const nodemask_t *nodes)
* handle an empty nodemask with MPOL_PREFERRED here.
*
* Must be called holding task's alloc_lock to protect task's mems_allowed
- * and mempolicy. May also be called holding the mmap_semaphore for write.
+ * and mempolicy. May also be called holding the mmap_lock for write.
*/
static int mpol_set_nodemask(struct mempolicy *pol,
const nodemask_t *nodes, struct nodemask_scratch *nsc)
@@ -368,7 +368,7 @@ static void mpol_rebind_preferred(struct mempolicy *pol,
/*
* mpol_rebind_policy - Migrate a policy to a different set of nodes
*
- * Per-vma policies are protected by mmap_sem. Allocations using per-task
+ * Per-vma policies are protected by mmap_lock. Allocations using per-task
* policies are protected by task->mems_allowed_seq to prevent a premature
* OOM/allocation failure due to parallel nodemask modification.
*/
@@ -398,7 +398,7 @@ void mpol_rebind_task(struct task_struct *tsk, const nodemask_t *new)
/*
* Rebind each vma in mm to new nodemask.
*
- * Call holding a reference to mm. Takes mm->mmap_sem during call.
+ * Call holding a reference to mm. Takes mm->mmap_lock during call.
*/
void mpol_rebind_mm(struct mm_struct *mm, nodemask_t *new)
@@ -764,7 +764,7 @@ queue_pages_range(struct mm_struct *mm, unsigned long start, unsigned long end,
/*
* Apply policy to a single VMA
- * This must be called with the mmap_sem held for writing.
+ * This must be called with the mmap_lock held for writing.
*/
static int vma_replace_policy(struct vm_area_struct *vma,
struct mempolicy *pol)
@@ -789,7 +789,7 @@ static int vma_replace_policy(struct vm_area_struct *vma,
}
old = vma->vm_policy;
- vma->vm_policy = new; /* protected by mmap_sem */
+ vma->vm_policy = new; /* protected by mmap_lock */
mpol_put(old);
return 0;
@@ -985,7 +985,7 @@ static long do_get_mempolicy(int *policy, nodemask_t *nmask,
if (flags & MPOL_F_ADDR) {
/*
* Take a refcount on the mpol, lookup_node()
- * wil drop the mmap_sem, so after calling
+ * wil drop the mmap_lock, so after calling
* lookup_node() only "pol" remains valid, "vma"
* is stale.
*/