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authorMichel Lespinasse <walken@google.com>2020-06-09 07:33:54 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2020-06-09 19:39:14 +0300
commitc1e8d7c6a7a682e1405e3e242d32fc377fd196ff (patch)
treeef02402b77990834fbb5bdb1f146fc0393cc8987 /arch/s390/mm/gmap.c
parent3e4e28c5a8f01ee4174d639e36ed155ade489a6f (diff)
downloadlinux-c1e8d7c6a7a682e1405e3e242d32fc377fd196ff.tar.xz
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 'arch/s390/mm/gmap.c')
-rw-r--r--arch/s390/mm/gmap.c32
1 files changed, 16 insertions, 16 deletions
diff --git a/arch/s390/mm/gmap.c b/arch/s390/mm/gmap.c
index a8e818d10c6b..190357ff86b3 100644
--- a/arch/s390/mm/gmap.c
+++ b/arch/s390/mm/gmap.c
@@ -300,7 +300,7 @@ struct gmap *gmap_get_enabled(void)
EXPORT_SYMBOL_GPL(gmap_get_enabled);
/*
- * gmap_alloc_table is assumed to be called with mmap_sem held
+ * gmap_alloc_table is assumed to be called with mmap_lock held
*/
static int gmap_alloc_table(struct gmap *gmap, unsigned long *table,
unsigned long init, unsigned long gaddr)
@@ -466,7 +466,7 @@ EXPORT_SYMBOL_GPL(gmap_map_segment);
* Returns user space address which corresponds to the guest address or
* -EFAULT if no such mapping exists.
* This function does not establish potentially missing page table entries.
- * The mmap_sem of the mm that belongs to the address space must be held
+ * The mmap_lock of the mm that belongs to the address space must be held
* when this function gets called.
*
* Note: Can also be called for shadow gmaps.
@@ -534,7 +534,7 @@ static void gmap_pmdp_xchg(struct gmap *gmap, pmd_t *old, pmd_t new,
*
* Returns 0 on success, -ENOMEM for out of memory conditions, and -EFAULT
* if the vm address is already mapped to a different guest segment.
- * The mmap_sem of the mm that belongs to the address space must be held
+ * The mmap_lock of the mm that belongs to the address space must be held
* when this function gets called.
*/
int __gmap_link(struct gmap *gmap, unsigned long gaddr, unsigned long vmaddr)
@@ -655,7 +655,7 @@ retry:
goto out_up;
}
/*
- * In the case that fixup_user_fault unlocked the mmap_sem during
+ * In the case that fixup_user_fault unlocked the mmap_lock during
* faultin redo __gmap_translate to not race with a map/unmap_segment.
*/
if (unlocked)
@@ -669,7 +669,7 @@ out_up:
EXPORT_SYMBOL_GPL(gmap_fault);
/*
- * this function is assumed to be called with mmap_sem held
+ * this function is assumed to be called with mmap_lock held
*/
void __gmap_zap(struct gmap *gmap, unsigned long gaddr)
{
@@ -882,7 +882,7 @@ static int gmap_pte_op_fixup(struct gmap *gmap, unsigned long gaddr,
if (fixup_user_fault(current, mm, vmaddr, fault_flags, &unlocked))
return -EFAULT;
if (unlocked)
- /* lost mmap_sem, caller has to retry __gmap_translate */
+ /* lost mmap_lock, caller has to retry __gmap_translate */
return 0;
/* Connect the page tables */
return __gmap_link(gmap, gaddr, vmaddr);
@@ -953,7 +953,7 @@ static inline void gmap_pmd_op_end(struct gmap *gmap, pmd_t *pmdp)
* -EAGAIN if a fixup is needed
* -EINVAL if unsupported notifier bits have been specified
*
- * Expected to be called with sg->mm->mmap_sem in read and
+ * Expected to be called with sg->mm->mmap_lock in read and
* guest_table_lock held.
*/
static int gmap_protect_pmd(struct gmap *gmap, unsigned long gaddr,
@@ -999,7 +999,7 @@ static int gmap_protect_pmd(struct gmap *gmap, unsigned long gaddr,
* Returns 0 if successfully protected, -ENOMEM if out of memory and
* -EAGAIN if a fixup is needed.
*
- * Expected to be called with sg->mm->mmap_sem in read
+ * Expected to be called with sg->mm->mmap_lock in read
*/
static int gmap_protect_pte(struct gmap *gmap, unsigned long gaddr,
pmd_t *pmdp, int prot, unsigned long bits)
@@ -1035,7 +1035,7 @@ static int gmap_protect_pte(struct gmap *gmap, unsigned long gaddr,
* Returns 0 if successfully protected, -ENOMEM if out of memory and
* -EFAULT if gaddr is invalid (or mapping for shadows is missing).
*
- * Called with sg->mm->mmap_sem in read.
+ * Called with sg->mm->mmap_lock in read.
*/
static int gmap_protect_range(struct gmap *gmap, unsigned long gaddr,
unsigned long len, int prot, unsigned long bits)
@@ -1124,7 +1124,7 @@ EXPORT_SYMBOL_GPL(gmap_mprotect_notify);
* if reading using the virtual address failed. -EINVAL if called on a gmap
* shadow.
*
- * Called with gmap->mm->mmap_sem in read.
+ * Called with gmap->mm->mmap_lock in read.
*/
int gmap_read_table(struct gmap *gmap, unsigned long gaddr, unsigned long *val)
{
@@ -1729,7 +1729,7 @@ EXPORT_SYMBOL_GPL(gmap_shadow);
* shadow table structure is incomplete, -ENOMEM if out of memory and
* -EFAULT if an address in the parent gmap could not be resolved.
*
- * Called with sg->mm->mmap_sem in read.
+ * Called with sg->mm->mmap_lock in read.
*/
int gmap_shadow_r2t(struct gmap *sg, unsigned long saddr, unsigned long r2t,
int fake)
@@ -1813,7 +1813,7 @@ EXPORT_SYMBOL_GPL(gmap_shadow_r2t);
* shadow table structure is incomplete, -ENOMEM if out of memory and
* -EFAULT if an address in the parent gmap could not be resolved.
*
- * Called with sg->mm->mmap_sem in read.
+ * Called with sg->mm->mmap_lock in read.
*/
int gmap_shadow_r3t(struct gmap *sg, unsigned long saddr, unsigned long r3t,
int fake)
@@ -1897,7 +1897,7 @@ EXPORT_SYMBOL_GPL(gmap_shadow_r3t);
* shadow table structure is incomplete, -ENOMEM if out of memory and
* -EFAULT if an address in the parent gmap could not be resolved.
*
- * Called with sg->mm->mmap_sem in read.
+ * Called with sg->mm->mmap_lock in read.
*/
int gmap_shadow_sgt(struct gmap *sg, unsigned long saddr, unsigned long sgt,
int fake)
@@ -1981,7 +1981,7 @@ EXPORT_SYMBOL_GPL(gmap_shadow_sgt);
* Returns 0 if the shadow page table was found and -EAGAIN if the page
* table was not found.
*
- * Called with sg->mm->mmap_sem in read.
+ * Called with sg->mm->mmap_lock in read.
*/
int gmap_shadow_pgt_lookup(struct gmap *sg, unsigned long saddr,
unsigned long *pgt, int *dat_protection,
@@ -2021,7 +2021,7 @@ EXPORT_SYMBOL_GPL(gmap_shadow_pgt_lookup);
* shadow table structure is incomplete, -ENOMEM if out of memory,
* -EFAULT if an address in the parent gmap could not be resolved and
*
- * Called with gmap->mm->mmap_sem in read
+ * Called with gmap->mm->mmap_lock in read
*/
int gmap_shadow_pgt(struct gmap *sg, unsigned long saddr, unsigned long pgt,
int fake)
@@ -2100,7 +2100,7 @@ EXPORT_SYMBOL_GPL(gmap_shadow_pgt);
* shadow table structure is incomplete, -ENOMEM if out of memory and
* -EFAULT if an address in the parent gmap could not be resolved.
*
- * Called with sg->mm->mmap_sem in read.
+ * Called with sg->mm->mmap_lock in read.
*/
int gmap_shadow_page(struct gmap *sg, unsigned long saddr, pte_t pte)
{