From f031dd274ccb7069012ede73f537cc81c42fc80b Mon Sep 17 00:00:00 2001 From: Joonsoo Kim Date: Thu, 3 Apr 2014 14:47:28 -0700 Subject: [PATCH] mm, hugetlb: remove resv_map_put This is a preparation patch to unify the use of vma_resv_map() regardless of the map type. This patch prepares it by removing resv_map_put(), which only works for HPAGE_RESV_OWNER's resv_map, not for all resv_maps. [davidlohr@hp.com: update changelog] Signed-off-by: Joonsoo Kim Signed-off-by: Davidlohr Bueso Reviewed-by: Aneesh Kumar K.V Reviewed-by: Naoya Horiguchi Cc: David Gibson Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/hugetlb.c | 15 +++------------ 1 file changed, 3 insertions(+), 12 deletions(-) diff --git a/mm/hugetlb.c b/mm/hugetlb.c index 5a2515a774b5..c7918cd3a153 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -2275,15 +2275,6 @@ static void hugetlb_vm_op_open(struct vm_area_struct *vma) kref_get(&resv->refs); } -static void resv_map_put(struct vm_area_struct *vma) -{ - struct resv_map *resv = vma_resv_map(vma); - - if (!resv) - return; - kref_put(&resv->refs, resv_map_release); -} - static void hugetlb_vm_op_close(struct vm_area_struct *vma) { struct hstate *h = hstate_vma(vma); @@ -2300,7 +2291,7 @@ static void hugetlb_vm_op_close(struct vm_area_struct *vma) reserve = (end - start) - region_count(resv, start, end); - resv_map_put(vma); + kref_put(&resv->refs, resv_map_release); if (reserve) { hugetlb_acct_memory(h, -reserve); @@ -3249,8 +3240,8 @@ int hugetlb_reserve_pages(struct inode *inode, region_add(resv_map, from, to); return 0; out_err: - if (vma) - resv_map_put(vma); + if (vma && is_vma_resv_set(vma, HPAGE_RESV_OWNER)) + kref_put(&resv_map->refs, resv_map_release); return ret; } -- 2.20.1