hpfs: update ctime and mtime on directory modification

Update ctime and mtime when a directory is modified. (though OS/2 doesn't
update them anyway)

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Cc: stable@kernel.org	# v3.3+
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 24 insertions, 1 deletions

diff --git a/fs/hpfs/namei.c b/fs/hpfs/namei.c
index a0872f239f04..9e92c9c2d319 100644
--- a/fs/hpfs/namei.c
+++ b/fs/hpfs/namei.c
@@ -8,6 +8,17 @@
 #include <linux/sched.h>
 #include "hpfs_fn.h"
 
+static void hpfs_update_directory_times(struct inode *dir)
+{
+        time_t t = get_seconds();
+        if (t == dir->i_mtime.tv_sec &&
+            t == dir->i_ctime.tv_sec)
+                return;
+        dir->i_mtime.tv_sec = dir->i_ctime.tv_sec = t;
+        dir->i_mtime.tv_nsec = dir->i_ctime.tv_nsec = 0;
+        hpfs_write_inode_nolock(dir);
+}
+
 static int hpfs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
 {
         const unsigned char *name = dentry->d_name.name;
@@ -99,6 +110,7 @@ static int hpfs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
                 result->i_mode = mode | S_IFDIR;
                 hpfs_write_inode_nolock(result);
         }
+        hpfs_update_directory_times(dir);
         d_instantiate(dentry, result);
         hpfs_unlock(dir->i_sb);
         return 0;
@@ -187,6 +199,7 @@ static int hpfs_create(struct inode *dir, struct dentry *dentry, umode_t mode, b
                 result->i_mode = mode | S_IFREG;
                 hpfs_write_inode_nolock(result);
         }
+        hpfs_update_directory_times(dir);
         d_instantiate(dentry, result);
         hpfs_unlock(dir->i_sb);
         return 0;
@@ -262,6 +275,7 @@ static int hpfs_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, de
         insert_inode_hash(result);
 
         hpfs_write_inode_nolock(result);
+        hpfs_update_directory_times(dir);
         d_instantiate(dentry, result);
         brelse(bh);
         hpfs_unlock(dir->i_sb);
@@ -340,6 +354,7 @@ static int hpfs_symlink(struct inode *dir, struct dentry *dentry, const char *sy
         insert_inode_hash(result);
 
         hpfs_write_inode_nolock(result);
+        hpfs_update_directory_times(dir);
         d_instantiate(dentry, result);
         hpfs_unlock(dir->i_sb);
         return 0;
@@ -423,6 +438,8 @@ again:
 out1:
         hpfs_brelse4(&qbh);
 out:
+        if (!err)
+                hpfs_update_directory_times(dir);
         hpfs_unlock(dir->i_sb);
         return err;
 }
@@ -477,6 +494,8 @@ static int hpfs_rmdir(struct inode *dir, struct dentry *dentry)
 out1:
         hpfs_brelse4(&qbh);
 out:
+        if (!err)
+                hpfs_update_directory_times(dir);
         hpfs_unlock(dir->i_sb);
         return err;
 }
@@ -595,7 +614,7 @@ static int hpfs_rename(struct inode *old_dir, struct dentry *old_dentry,
                 goto end1;
         }
 
-        end:
+end:
         hpfs_i(i)->i_parent_dir = new_dir->i_ino;
         if (S_ISDIR(i->i_mode)) {
                 inc_nlink(new_dir);
@@ -610,6 +629,10 @@ static int hpfs_rename(struct inode *old_dir, struct dentry *old_dentry,
                 brelse(bh);
         }
 end1:
+        if (!err) {
+                hpfs_update_directory_times(old_dir);
+                hpfs_update_directory_times(new_dir);
+        }
         hpfs_unlock(i->i_sb);
         return err;
 }