fs/vfs: replace schedule_timeout() with msleep()

diff -puN fs/nfsd/vfs.c~msleep-fs_nfsd_vfs fs/nfsd/vfs.c
@@ -36,6 +36,7 @@
 #include <linux/module.h>
 #include <linux/namei.h>
 #include <linux/vfs.h>
+#include <linux/delay.h>
 #include <linux/sunrpc/svc.h>
 #include <linux/nfsd/nfsd.h>
 #ifdef CONFIG_NFSD_V3

@@ -968,8 +969,7 @@ nfsd_write(struct svc_rqst *rqstp, struc
 			if (atomic_read(&inode->i_writecount) > 1
 			    || (last_ino == inode->i_ino && last_dev == inode->i_sb->s_dev)) {
 				dprintk("nfsd: write defer %d\n", current->pid);
-				set_current_state(TASK_UNINTERRUPTIBLE);
-				schedule_timeout((HZ+99)/100);
+				msleep(10);
 				dprintk("nfsd: write resume %d\n", current->pid);
 			}