[PATCH] fs: fix-up schedule_timeout() usage

Use schedule_timeout_{,un}interruptible() instead of
set_current_state()/schedule_timeout() to reduce kernel size.  Also use helper
functions to convert between human time units and jiffies rather than constant
HZ division to avoid rounding errors.

Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

2 files changed, 5 insertions, 10 deletions

diff --git a/fs/nfs/nfs3proc.c b/fs/nfs/nfs3proc.c
index 2681485cf2d0..edc95514046d 100644
--- a/fs/nfs/nfs3proc.c
+++ b/fs/nfs/nfs3proc.c
@@ -34,8 +34,7 @@ nfs3_rpc_wrapper(struct rpc_clnt *clnt, struct rpc_message *msg, int flags)
                 res = rpc_call_sync(clnt, msg, flags);
                 if (res != -EJUKEBOX)
                         break;
-                set_current_state(TASK_INTERRUPTIBLE);
-                schedule_timeout(NFS_JUKEBOX_RETRY_TIME);
+                schedule_timeout_interruptible(NFS_JUKEBOX_RETRY_TIME);
                 res = -ERESTARTSYS;
         } while (!signalled());
         rpc_clnt_sigunmask(clnt, &oldset);
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 0c5a308e4963..9701ca8c9428 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -2418,14 +2418,11 @@ static int nfs4_delay(struct rpc_clnt *clnt, long *timeout)
                 *timeout = NFS4_POLL_RETRY_MAX;
         rpc_clnt_sigmask(clnt, &oldset);
         if (clnt->cl_intr) {
-                set_current_state(TASK_INTERRUPTIBLE);
-                schedule_timeout(*timeout);
+                schedule_timeout_interruptible(*timeout);
                 if (signalled())
                         res = -ERESTARTSYS;
-        } else {
-                set_current_state(TASK_UNINTERRUPTIBLE);
-                schedule_timeout(*timeout);
-        }
+        } else
+                schedule_timeout_uninterruptible(*timeout);
         rpc_clnt_sigunmask(clnt, &oldset);
         *timeout <<= 1;
         return res;
@@ -2578,8 +2575,7 @@ int nfs4_proc_delegreturn(struct inode *inode, struct rpc_cred *cred, const nfs4
 static unsigned long
 nfs4_set_lock_task_retry(unsigned long timeout)
 {
-        current->state = TASK_INTERRUPTIBLE;
-        schedule_timeout(timeout);
+        schedule_timeout_interruptible(timeout);
         timeout <<= 1;
         if (timeout > NFS4_LOCK_MAXTIMEOUT)
                 return NFS4_LOCK_MAXTIMEOUT;