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Diffstat (limited to 'fs/gfs2/ops_vm.c')
-rw-r--r--fs/gfs2/ops_vm.c36
1 files changed, 19 insertions, 17 deletions
diff --git a/fs/gfs2/ops_vm.c b/fs/gfs2/ops_vm.c
index d5a98cbfebdc..e9fe6eb74e75 100644
--- a/fs/gfs2/ops_vm.c
+++ b/fs/gfs2/ops_vm.c
@@ -27,13 +27,13 @@
27#include "trans.h" 27#include "trans.h"
28#include "util.h" 28#include "util.h"
29 29
30static struct page *gfs2_private_nopage(struct vm_area_struct *area, 30static struct page *gfs2_private_fault(struct vm_area_struct *vma,
31 unsigned long address, int *type) 31 struct fault_data *fdata)
32{ 32{
33 struct gfs2_inode *ip = GFS2_I(area->vm_file->f_mapping->host); 33 struct gfs2_inode *ip = GFS2_I(vma->vm_file->f_mapping->host);
34 34
35 set_bit(GIF_PAGED, &ip->i_flags); 35 set_bit(GIF_PAGED, &ip->i_flags);
36 return filemap_nopage(area, address, type); 36 return filemap_fault(vma, fdata);
37} 37}
38 38
39static int alloc_page_backing(struct gfs2_inode *ip, struct page *page) 39static int alloc_page_backing(struct gfs2_inode *ip, struct page *page)
@@ -104,16 +104,14 @@ out:
104 return error; 104 return error;
105} 105}
106 106
107static struct page *gfs2_sharewrite_nopage(struct vm_area_struct *area, 107static struct page *gfs2_sharewrite_fault(struct vm_area_struct *vma,
108 unsigned long address, int *type) 108 struct fault_data *fdata)
109{ 109{
110 struct file *file = area->vm_file; 110 struct file *file = vma->vm_file;
111 struct gfs2_file *gf = file->private_data; 111 struct gfs2_file *gf = file->private_data;
112 struct gfs2_inode *ip = GFS2_I(file->f_mapping->host); 112 struct gfs2_inode *ip = GFS2_I(file->f_mapping->host);
113 struct gfs2_holder i_gh; 113 struct gfs2_holder i_gh;
114 struct page *result = NULL; 114 struct page *result = NULL;
115 unsigned long index = ((address - area->vm_start) >> PAGE_CACHE_SHIFT) +
116 area->vm_pgoff;
117 int alloc_required; 115 int alloc_required;
118 int error; 116 int error;
119 117
@@ -124,23 +122,27 @@ static struct page *gfs2_sharewrite_nopage(struct vm_area_struct *area,
124 set_bit(GIF_PAGED, &ip->i_flags); 122 set_bit(GIF_PAGED, &ip->i_flags);
125 set_bit(GIF_SW_PAGED, &ip->i_flags); 123 set_bit(GIF_SW_PAGED, &ip->i_flags);
126 124
127 error = gfs2_write_alloc_required(ip, (u64)index << PAGE_CACHE_SHIFT, 125 error = gfs2_write_alloc_required(ip,
128 PAGE_CACHE_SIZE, &alloc_required); 126 (u64)fdata->pgoff << PAGE_CACHE_SHIFT,
129 if (error) 127 PAGE_CACHE_SIZE, &alloc_required);
128 if (error) {
129 fdata->type = VM_FAULT_OOM; /* XXX: are these right? */
130 goto out; 130 goto out;
131 }
131 132
132 set_bit(GFF_EXLOCK, &gf->f_flags); 133 set_bit(GFF_EXLOCK, &gf->f_flags);
133 result = filemap_nopage(area, address, type); 134 result = filemap_fault(vma, fdata);
134 clear_bit(GFF_EXLOCK, &gf->f_flags); 135 clear_bit(GFF_EXLOCK, &gf->f_flags);
135 if (!result || result == NOPAGE_OOM) 136 if (!result)
136 goto out; 137 goto out;
137 138
138 if (alloc_required) { 139 if (alloc_required) {
139 error = alloc_page_backing(ip, result); 140 error = alloc_page_backing(ip, result);
140 if (error) { 141 if (error) {
141 if (area->vm_flags & VM_CAN_INVALIDATE) 142 if (vma->vm_flags & VM_CAN_INVALIDATE)
142 unlock_page(result); 143 unlock_page(result);
143 page_cache_release(result); 144 page_cache_release(result);
145 fdata->type = VM_FAULT_OOM;
144 result = NULL; 146 result = NULL;
145 goto out; 147 goto out;
146 } 148 }
@@ -154,10 +156,10 @@ out:
154} 156}
155 157
156struct vm_operations_struct gfs2_vm_ops_private = { 158struct vm_operations_struct gfs2_vm_ops_private = {
157 .nopage = gfs2_private_nopage, 159 .fault = gfs2_private_fault,
158}; 160};
159 161
160struct vm_operations_struct gfs2_vm_ops_sharewrite = { 162struct vm_operations_struct gfs2_vm_ops_sharewrite = {
161 .nopage = gfs2_sharewrite_nopage, 163 .fault = gfs2_sharewrite_fault,
162}; 164};
163 165