[PATCH v2 02/20] mm, hugetlb: change variable name reservations to resv

[Joonsoo Kim]

'reservations' is so long name as a variable and we use 'resv_map'
to represent 'struct resv_map' in other place. To reduce confusion and
unreadability, change it.

Reviewed-by: Aneesh Kumar <aneesh.ku...@linux.vnet.ibm.com>
Signed-off-by: Joonsoo Kim <iamjoonsoo....@lge.com>

diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index d971233..12b6581 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -1095,9 +1095,9 @@ static long vma_needs_reservation(struct hstate *h,
        } else  {
                long err;
                pgoff_t idx = vma_hugecache_offset(h, vma, addr);
-               struct resv_map *reservations = vma_resv_map(vma);
+               struct resv_map *resv = vma_resv_map(vma);
 
-               err = region_chg(&reservations->regions, idx, idx + 1);
+               err = region_chg(&resv->regions, idx, idx + 1);
                if (err < 0)
                        return err;
                return 0;
@@ -1115,10 +1115,10 @@ static void vma_commit_reservation(struct hstate *h,
 
        } else if (is_vma_resv_set(vma, HPAGE_RESV_OWNER)) {
                pgoff_t idx = vma_hugecache_offset(h, vma, addr);
-               struct resv_map *reservations = vma_resv_map(vma);
+               struct resv_map *resv = vma_resv_map(vma);
 
                /* Mark this page used in the map. */
-               region_add(&reservations->regions, idx, idx + 1);
+               region_add(&resv->regions, idx, idx + 1);
        }
 }
 
@@ -2168,7 +2168,7 @@ out:
 
 static void hugetlb_vm_op_open(struct vm_area_struct *vma)
 {
-       struct resv_map *reservations = vma_resv_map(vma);
+       struct resv_map *resv = vma_resv_map(vma);
 
        /*
         * This new VMA should share its siblings reservation map if present.
@@ -2178,34 +2178,34 @@ static void hugetlb_vm_op_open(struct vm_area_struct 
*vma)
         * after this open call completes.  It is therefore safe to take a
         * new reference here without additional locking.
         */
-       if (reservations)
-               kref_get(&reservations->refs);
+       if (resv)
+               kref_get(&resv->refs);
 }
 
 static void resv_map_put(struct vm_area_struct *vma)
 {
-       struct resv_map *reservations = vma_resv_map(vma);
+       struct resv_map *resv = vma_resv_map(vma);
 
-       if (!reservations)
+       if (!resv)
                return;
-       kref_put(&reservations->refs, resv_map_release);
+       kref_put(&resv->refs, resv_map_release);
 }
 
 static void hugetlb_vm_op_close(struct vm_area_struct *vma)
 {
        struct hstate *h = hstate_vma(vma);
-       struct resv_map *reservations = vma_resv_map(vma);
+       struct resv_map *resv = vma_resv_map(vma);
        struct hugepage_subpool *spool = subpool_vma(vma);
        unsigned long reserve;
        unsigned long start;
        unsigned long end;
 
-       if (reservations) {
+       if (resv) {
                start = vma_hugecache_offset(h, vma, vma->vm_start);
                end = vma_hugecache_offset(h, vma, vma->vm_end);
 
                reserve = (end - start) -
-                       region_count(&reservations->regions, start, end);
+                       region_count(&resv->regions, start, end);
 
                resv_map_put(vma);
 
-- 
1.7.9.5

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