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-rw-r--r--fs/hugetlbfs/inode.c10
-rw-r--r--include/linux/hugetlb.h4
-rw-r--r--mm/hugetlb.c4
3 files changed, 9 insertions, 9 deletions
diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
index 6513f5655861..09ee07f02663 100644
--- a/fs/hugetlbfs/inode.c
+++ b/fs/hugetlbfs/inode.c
@@ -858,15 +858,15 @@ out_free:
858 return -ENOMEM; 858 return -ENOMEM;
859} 859}
860 860
861int hugetlb_get_quota(struct address_space *mapping) 861int hugetlb_get_quota(struct address_space *mapping, long delta)
862{ 862{
863 int ret = 0; 863 int ret = 0;
864 struct hugetlbfs_sb_info *sbinfo = HUGETLBFS_SB(mapping->host->i_sb); 864 struct hugetlbfs_sb_info *sbinfo = HUGETLBFS_SB(mapping->host->i_sb);
865 865
866 if (sbinfo->free_blocks > -1) { 866 if (sbinfo->free_blocks > -1) {
867 spin_lock(&sbinfo->stat_lock); 867 spin_lock(&sbinfo->stat_lock);
868 if (sbinfo->free_blocks > 0) 868 if (sbinfo->free_blocks - delta >= 0)
869 sbinfo->free_blocks--; 869 sbinfo->free_blocks -= delta;
870 else 870 else
871 ret = -ENOMEM; 871 ret = -ENOMEM;
872 spin_unlock(&sbinfo->stat_lock); 872 spin_unlock(&sbinfo->stat_lock);
@@ -875,13 +875,13 @@ int hugetlb_get_quota(struct address_space *mapping)
875 return ret; 875 return ret;
876} 876}
877 877
878void hugetlb_put_quota(struct address_space *mapping) 878void hugetlb_put_quota(struct address_space *mapping, long delta)
879{ 879{
880 struct hugetlbfs_sb_info *sbinfo = HUGETLBFS_SB(mapping->host->i_sb); 880 struct hugetlbfs_sb_info *sbinfo = HUGETLBFS_SB(mapping->host->i_sb);
881 881
882 if (sbinfo->free_blocks > -1) { 882 if (sbinfo->free_blocks > -1) {
883 spin_lock(&sbinfo->stat_lock); 883 spin_lock(&sbinfo->stat_lock);
884 sbinfo->free_blocks++; 884 sbinfo->free_blocks += delta;
885 spin_unlock(&sbinfo->stat_lock); 885 spin_unlock(&sbinfo->stat_lock);
886 } 886 }
887} 887}
diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h
index e22368656b38..8104e5af75ab 100644
--- a/include/linux/hugetlb.h
+++ b/include/linux/hugetlb.h
@@ -165,8 +165,8 @@ static inline struct hugetlbfs_sb_info *HUGETLBFS_SB(struct super_block *sb)
165extern const struct file_operations hugetlbfs_file_operations; 165extern const struct file_operations hugetlbfs_file_operations;
166extern struct vm_operations_struct hugetlb_vm_ops; 166extern struct vm_operations_struct hugetlb_vm_ops;
167struct file *hugetlb_file_setup(const char *name, size_t); 167struct file *hugetlb_file_setup(const char *name, size_t);
168int hugetlb_get_quota(struct address_space *mapping); 168int hugetlb_get_quota(struct address_space *mapping, long delta);
169void hugetlb_put_quota(struct address_space *mapping); 169void hugetlb_put_quota(struct address_space *mapping, long delta);
170 170
171static inline int is_file_hugepages(struct file *file) 171static inline int is_file_hugepages(struct file *file)
172{ 172{
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index bc12b0adfa87..1e317465ecd1 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -132,7 +132,7 @@ static void free_huge_page(struct page *page)
132 } 132 }
133 spin_unlock(&hugetlb_lock); 133 spin_unlock(&hugetlb_lock);
134 if (mapping) 134 if (mapping)
135 hugetlb_put_quota(mapping); 135 hugetlb_put_quota(mapping, 1);
136 set_page_private(page, 0); 136 set_page_private(page, 0);
137} 137}
138 138
@@ -390,7 +390,7 @@ static struct page *alloc_huge_page(struct vm_area_struct *vma,
390 struct page *page; 390 struct page *page;
391 struct address_space *mapping = vma->vm_file->f_mapping; 391 struct address_space *mapping = vma->vm_file->f_mapping;
392 392
393 if (hugetlb_get_quota(mapping)) 393 if (hugetlb_get_quota(mapping, 1))
394 return ERR_PTR(-VM_FAULT_SIGBUS); 394 return ERR_PTR(-VM_FAULT_SIGBUS);
395 395
396 if (vma->vm_flags & VM_MAYSHARE) 396 if (vma->vm_flags & VM_MAYSHARE)