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authorTejun Heo <tj@kernel.org>2010-02-02 00:38:15 -0500
committerTejun Heo <tj@kernel.org>2010-02-02 00:38:15 -0500
commitab386128f20c44c458a90039ab1bdc265ac474c9 (patch)
tree2ad188744922b1bb951fd10ff50dc04c83acce22 /fs/ramfs/file-nommu.c
parentdbfc196a3cc1a2514ad0737a82f764de23bd65e6 (diff)
parentab658321f32770b903a4426e2a6fae0392757755 (diff)
Merge branch 'master' into percpu
Diffstat (limited to 'fs/ramfs/file-nommu.c')
-rw-r--r--fs/ramfs/file-nommu.c26
1 files changed, 1 insertions, 25 deletions
diff --git a/fs/ramfs/file-nommu.c b/fs/ramfs/file-nommu.c
index 2efc57173fd7..1739a4aba25f 100644
--- a/fs/ramfs/file-nommu.c
+++ b/fs/ramfs/file-nommu.c
@@ -123,30 +123,6 @@ add_error:
123 123
124/*****************************************************************************/ 124/*****************************************************************************/
125/* 125/*
126 * check that file shrinkage doesn't leave any VMAs dangling in midair
127 */
128static int ramfs_nommu_check_mappings(struct inode *inode,
129 size_t newsize, size_t size)
130{
131 struct vm_area_struct *vma;
132 struct prio_tree_iter iter;
133
134 /* search for VMAs that fall within the dead zone */
135 vma_prio_tree_foreach(vma, &iter, &inode->i_mapping->i_mmap,
136 newsize >> PAGE_SHIFT,
137 (size + PAGE_SIZE - 1) >> PAGE_SHIFT
138 ) {
139 /* found one - only interested if it's shared out of the page
140 * cache */
141 if (vma->vm_flags & VM_SHARED)
142 return -ETXTBSY; /* not quite true, but near enough */
143 }
144
145 return 0;
146}
147
148/*****************************************************************************/
149/*
150 * 126 *
151 */ 127 */
152static int ramfs_nommu_resize(struct inode *inode, loff_t newsize, loff_t size) 128static int ramfs_nommu_resize(struct inode *inode, loff_t newsize, loff_t size)
@@ -164,7 +140,7 @@ static int ramfs_nommu_resize(struct inode *inode, loff_t newsize, loff_t size)
164 140
165 /* check that a decrease in size doesn't cut off any shared mappings */ 141 /* check that a decrease in size doesn't cut off any shared mappings */
166 if (newsize < size) { 142 if (newsize < size) {
167 ret = ramfs_nommu_check_mappings(inode, newsize, size); 143 ret = nommu_shrink_inode_mappings(inode, size, newsize);
168 if (ret < 0) 144 if (ret < 0)
169 return ret; 145 return ret;
170 } 146 }