[PATCH 17/30] r/o bind mounts: write count for file_update_time()

Dave Hansen
2008-02-15T22:47:14Z

linux-2.6.git-dave/fs/inode.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)

diff -puN fs/inode.c~r-o-bind-mounts-elevate-write-count-for-file_update_time fs/inode.c
--- linux-2.6.git/fs/inode.c~r-o-bind-mounts-elevate-write-count-for-file_update_time 2008-02-15 13:25:51.000000000 -0800
+++ linux-2.6.git-dave/fs/inode.c 2008-02-15 13:25:51.000000000 -0800
@@ -1250,10 +1250,13 @@ void file_update_time(struct file *file)
struct inode *inode = file->f_path.dentry->d_inode;
struct timespec now;
int sync_it = 0;
+ int err;

if (IS_NOCMTIME(inode))
return;
- if (IS_RDONLY(inode))
+
+ err = mnt_want_write(file->f_vfsmnt);
+ if (err)
return;

now = current_fs_time(inode->i_sb);
@@ -1274,6 +1277,7 @@ void file_update_time(struct file *file)

if (sync_it)
mark_inode_dirty_sync(inode);
+ mnt_drop_write(file->f_vfsmnt);
}

EXPORT_SYMBOL(file_update_time);
_