1 files changed, 22 insertions, 4 deletions

diff --git a/fs/fat/inode.c b/fs/fat/inode.c
index a7cbe68e2259..e2effe2dc9b2 100644
--- a/fs/fat/inode.c
+++ b/fs/fat/inode.c
@@ -102,6 +102,19 @@ static int fat_prepare_write(struct file *file, struct page *page,
                                   &MSDOS_I(page->mapping->host)->mmu_private);
 }
 
+static int fat_commit_write(struct file *file, struct page *page,
+                            unsigned from, unsigned to)
+{
+        struct inode *inode = page->mapping->host;
+        int err = generic_commit_write(file, page, from, to);
+        if (!err && !(MSDOS_I(inode)->i_attrs & ATTR_ARCH)) {
+                inode->i_mtime = inode->i_ctime = CURRENT_TIME_SEC;
+                MSDOS_I(inode)->i_attrs |= ATTR_ARCH;
+                mark_inode_dirty(inode);
+        }
+        return err;
+}
+
 static sector_t _fat_bmap(struct address_space *mapping, sector_t block)
 {
         return generic_block_bmap(mapping, block, fat_get_block);
@@ -112,7 +125,7 @@ static struct address_space_operations fat_aops = {
         .writepage      = fat_writepage,
         .sync_page      = block_sync_page,
         .prepare_write  = fat_prepare_write,
-        .commit_write   = generic_commit_write,
+        .commit_write   = fat_commit_write,
         .bmap           = _fat_bmap
 };
 
@@ -287,9 +300,9 @@ static int fat_fill_inode(struct inode *inode, struct msdos_dir_entry *de)
         inode->i_blksize = sbi->cluster_size;
         inode->i_blocks = ((inode->i_size + (sbi->cluster_size - 1))
                            & ~((loff_t)sbi->cluster_size - 1)) >> 9;
-        inode->i_mtime.tv_sec = inode->i_atime.tv_sec =
+        inode->i_mtime.tv_sec =
                 date_dos2unix(le16_to_cpu(de->time), le16_to_cpu(de->date));
-        inode->i_mtime.tv_nsec = inode->i_atime.tv_nsec = 0;
+        inode->i_mtime.tv_nsec = 0;
         if (sbi->options.isvfat) {
                 int secs = de->ctime_cs / 100;
                 int csecs = de->ctime_cs % 100;
@@ -297,8 +310,11 @@ static int fat_fill_inode(struct inode *inode, struct msdos_dir_entry *de)
                         date_dos2unix(le16_to_cpu(de->ctime),
                                       le16_to_cpu(de->cdate)) + secs;
                 inode->i_ctime.tv_nsec = csecs * 10000000;
+                inode->i_atime.tv_sec =
+                        date_dos2unix(le16_to_cpu(0), le16_to_cpu(de->adate));
+                inode->i_atime.tv_nsec = 0;
         } else
-                inode->i_ctime = inode->i_mtime;
+                inode->i_ctime = inode->i_atime = inode->i_mtime;
 
         return 0;
 }
@@ -500,7 +516,9 @@ retry:
         raw_entry->starthi = cpu_to_le16(MSDOS_I(inode)->i_logstart >> 16);
         fat_date_unix2dos(inode->i_mtime.tv_sec, &raw_entry->time, &raw_entry->date);
         if (sbi->options.isvfat) {
+                __le16 atime;
                 fat_date_unix2dos(inode->i_ctime.tv_sec,&raw_entry->ctime,&raw_entry->cdate);
+                fat_date_unix2dos(inode->i_atime.tv_sec,&atime,&raw_entry->adate);
                 raw_entry->ctime_cs = (inode->i_ctime.tv_sec & 1) * 100 +
                         inode->i_ctime.tv_nsec / 10000000;
         }