[PATCH] tmpfs: time granularity fix for [acm]time going backwards

[linux-2.6-omap-h63xx.git] / mm / shmem.c

diff --git a/mm/shmem.c b/mm/shmem.c
index 37eaf42ed2c686541e4e1ef7a7a41afe736e7eb7..73f7a9dfcd371c5b4e4c97abab651dd6bfd73da6 100644 (file)
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -46,6 +46,8 @@
 #include <linux/mempolicy.h>
 #include <linux/namei.h>
 #include <linux/ctype.h>
+#include <linux/migrate.h>
+
 #include <asm/uaccess.h>
 #include <asm/div64.h>
 #include <asm/pgtable.h>
@@ -2100,6 +2102,7 @@ static int shmem_fill_super(struct super_block *sb,
        sb->s_blocksize_bits = PAGE_CACHE_SHIFT;
        sb->s_magic = TMPFS_MAGIC;
        sb->s_op = &shmem_ops;
+       sb->s_time_gran = 1;
 
        inode = shmem_get_inode(sb, S_IFDIR | mode, 0);
        if (!inode)
@@ -2173,6 +2176,7 @@ static struct address_space_operations shmem_aops = {
        .prepare_write  = shmem_prepare_write,
        .commit_write   = simple_commit_write,
 #endif
+       .migratepage    = migrate_page,
 };
 
 static struct file_operations shmem_file_operations = {