Signed-off-by: Dave Hansen <[email protected]>
---
lxc-dave/fs/inode.c | 13 ++++++++++++-
1 file changed, 12 insertions(+), 1 deletion(-)
diff -puN fs/inode.c~elevate-write-count-for-file_update_time fs/inode.c
--- lxc/fs/inode.c~elevate-write-count-for-file_update_time 2007-07-10 12:46:10.000000000 -0700
+++ lxc-dave/fs/inode.c 2007-07-10 12:46:10.000000000 -0700
@@ -1221,10 +1221,19 @@ 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 = 0;
if (IS_NOCMTIME(inode))
return;
- if (IS_RDONLY(inode))
+ /*
+ * Ideally, we want to guarantee that 'f_vfsmnt'
+ * is non-NULL here. But, NFS exports need to
+ * be fixed up before we can do that. So, check
+ * it for now. - Dave Hansen
+ */
+ if (file->f_vfsmnt)
+ err = mnt_want_write(file->f_vfsmnt);
+ if (err)
return;
now = current_fs_time(inode->i_sb);
@@ -1240,6 +1249,8 @@ void file_update_time(struct file *file)
if (sync_it)
mark_inode_dirty_sync(inode);
+ if (file->f_vfsmnt)
+ mnt_drop_write(file->f_vfsmnt);
}
EXPORT_SYMBOL(file_update_time);
_
-
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