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[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>
This commit is contained in:
Nishanth Aravamudan 2005-09-10 00:27:23 -07:00 committed by Linus Torvalds
parent 373016e9e1
commit 041e0e3b19
10 changed files with 21 additions and 33 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
fs/cifs/connect.c
View File

@ -3215,10 +3215,8 @@ cifs_umount(struct super_block *sb, struct cifs_sb_info *cifs_sb)
}
cifs_sb->tcon = NULL;
if (ses) {
set_current_state(TASK_INTERRUPTIBLE);
schedule_timeout(HZ / 2);
}
if (ses)
schedule_timeout_interruptible(msecs_to_jiffies(500));
if (ses)
sesInfoFree(ses);

3
fs/jbd/transaction.c
View File

@ -1340,8 +1340,7 @@ int journal_stop(handle_t *handle)
if (handle->h_sync) {
do {
old_handle_count = transaction->t_handle_count;
set_current_state(TASK_UNINTERRUPTIBLE);
schedule_timeout(1);
schedule_timeout_uninterruptible(1);
} while (old_handle_count != transaction->t_handle_count);
}

3
fs/lockd/clntproc.c
View File

@ -299,8 +299,7 @@ nlmclnt_alloc_call(void)
return call;
}
printk("nlmclnt_alloc_call: failed, waiting for memory\n");
current->state = TASK_INTERRUPTIBLE;
schedule_timeout(5*HZ);
schedule_timeout_interruptible(5*HZ);
}
return NULL;
}

3
fs/nfs/nfs3proc.c
View File

@ -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);

12
fs/nfs/nfs4proc.c
View File

@ -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;

3
fs/reiserfs/journal.c
View File

@ -2868,8 +2868,7 @@ static void let_transaction_grow(struct super_block *sb, unsigned long trans_id)
struct reiserfs_journal *journal = SB_JOURNAL(sb);
unsigned long bcount = journal->j_bcount;
while (1) {
set_current_state(TASK_UNINTERRUPTIBLE);
schedule_timeout(1);
schedule_timeout_uninterruptible(1);
journal->j_current_jl->j_state |= LIST_COMMIT_PENDING;
while ((atomic_read(&journal->j_wcount) > 0 ||
atomic_read(&journal->j_jlock)) &&

3
fs/smbfs/proc.c
View File

@ -2397,8 +2397,7 @@ smb_proc_readdir_long(struct file *filp, void *dirent, filldir_t filldir,
if (req->rq_rcls == ERRSRV && req->rq_err == ERRerror) {
/* a damn Win95 bug - sometimes it clags if you
ask it too fast */
current->state = TASK_INTERRUPTIBLE;
schedule_timeout(HZ/5);
schedule_timeout_interruptible(msecs_to_jiffies(200));
continue;
}

3
fs/xfs/linux-2.6/time.h
View File

@ -39,8 +39,7 @@ typedef struct timespec timespec_t;
static inline void delay(long ticks)
{
set_current_state(TASK_UNINTERRUPTIBLE);
schedule_timeout(ticks);
schedule_timeout_uninterruptible(ticks);
}
static inline void nanotime(struct timespec *tvp)

6
fs/xfs/linux-2.6/xfs_buf.c
View File

@ -1780,10 +1780,10 @@ xfsbufd(
xfsbufd_force_sleep = 0;
}
set_current_state(TASK_INTERRUPTIBLE);
schedule_timeout((xfs_buf_timer_centisecs * HZ) / 100);
schedule_timeout_interruptible
(xfs_buf_timer_centisecs * msecs_to_jiffies(10));
age = (xfs_buf_age_centisecs * HZ) / 100;
age = xfs_buf_age_centisecs * msecs_to_jiffies(10);
spin_lock(&pbd_delwrite_lock);
list_for_each_entry_safe(pb, n, &pbd_delwrite_queue, pb_list) {
PB_TRACE(pb, "walkq1", (long)pagebuf_ispin(pb));

12
fs/xfs/linux-2.6/xfs_super.c
View File

@ -467,7 +467,7 @@ xfs_flush_inode(
igrab(inode);
xfs_syncd_queue_work(vfs, inode, xfs_flush_inode_work);
delay(HZ/2);
delay(msecs_to_jiffies(500));
}
/*
@ -492,7 +492,7 @@ xfs_flush_device(
igrab(inode);
xfs_syncd_queue_work(vfs, inode, xfs_flush_device_work);
delay(HZ/2);
delay(msecs_to_jiffies(500));
xfs_log_force(ip->i_mount, (xfs_lsn_t)0, XFS_LOG_FORCE|XFS_LOG_SYNC);
}
@ -520,10 +520,9 @@ xfssyncd(
struct vfs_sync_work *work, *n;
LIST_HEAD (tmp);
timeleft = (xfs_syncd_centisecs * HZ) / 100;
timeleft = xfs_syncd_centisecs * msecs_to_jiffies(10);
for (;;) {
set_current_state(TASK_INTERRUPTIBLE);
timeleft = schedule_timeout(timeleft);
timeleft = schedule_timeout_interruptible(timeleft);
/* swsusp */
try_to_freeze();
if (kthread_should_stop())
@ -537,7 +536,8 @@ xfssyncd(
*/
if (!timeleft || list_empty(&vfsp->vfs_sync_list)) {
if (!timeleft)
timeleft = (xfs_syncd_centisecs * HZ) / 100;
timeleft = xfs_syncd_centisecs *
msecs_to_jiffies(10);
INIT_LIST_HEAD(&vfsp->vfs_sync_work.w_list);
list_add_tail(&vfsp->vfs_sync_work.w_list,
&vfsp->vfs_sync_list);