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authorAndy Voltz <andy.voltz@timesys.com>2010-11-15 16:00:38 -0500
committerAndy Voltz <andy.voltz@timesys.com>2010-11-17 11:30:34 -0500
commit2e0ae4bf137e282e825b27b02eb46f86c59d004e (patch)
tree7c2534acd757ca414f02c5b983ee67eb2b2493c6 /mm/truncate.c
parent22763c5cf3690a681551162c15d34d935308c8d7 (diff)
Bump Linux kernel to 2.6.32.25
Diffstat (limited to 'mm/truncate.c')
-rw-r--r--mm/truncate.c30
1 files changed, 14 insertions, 16 deletions
diff --git a/mm/truncate.c b/mm/truncate.c
index 450cebdabfc0..258bda7ec31d 100644
--- a/mm/truncate.c
+++ b/mm/truncate.c
@@ -516,22 +516,20 @@ EXPORT_SYMBOL_GPL(invalidate_inode_pages2);
*/
void truncate_pagecache(struct inode *inode, loff_t old, loff_t new)
{
- if (new < old) {
- struct address_space *mapping = inode->i_mapping;
-
- /*
- * unmap_mapping_range is called twice, first simply for
- * efficiency so that truncate_inode_pages does fewer
- * single-page unmaps. However after this first call, and
- * before truncate_inode_pages finishes, it is possible for
- * private pages to be COWed, which remain after
- * truncate_inode_pages finishes, hence the second
- * unmap_mapping_range call must be made for correctness.
- */
- unmap_mapping_range(mapping, new + PAGE_SIZE - 1, 0, 1);
- truncate_inode_pages(mapping, new);
- unmap_mapping_range(mapping, new + PAGE_SIZE - 1, 0, 1);
- }
+ struct address_space *mapping = inode->i_mapping;
+
+ /*
+ * unmap_mapping_range is called twice, first simply for
+ * efficiency so that truncate_inode_pages does fewer
+ * single-page unmaps. However after this first call, and
+ * before truncate_inode_pages finishes, it is possible for
+ * private pages to be COWed, which remain after
+ * truncate_inode_pages finishes, hence the second
+ * unmap_mapping_range call must be made for correctness.
+ */
+ unmap_mapping_range(mapping, new + PAGE_SIZE - 1, 0, 1);
+ truncate_inode_pages(mapping, new);
+ unmap_mapping_range(mapping, new + PAGE_SIZE - 1, 0, 1);
}
EXPORT_SYMBOL(truncate_pagecache);