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From: "J. Bruce Fields" <bfields-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
To: linux-fsdevel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: Jeremy Allison <jra-eUNUBHrolfbYtjvyW6yDsg@public.gmane.org>,
	samba-technical-w/Ol4Ecudpl8XjKLYN78aQ@public.gmane.org,
	linux-nfs-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	Volker Lendecke
	<Volker.Lendecke-PS7XAnAlDA+VvDNblw4Uiw@public.gmane.org>,
	Casey Bodley <cbodley-vtMw8L3fJ9vSiEDVxGk4TQ@public.gmane.org>,
	"J. Bruce Fields"
	<bfields-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Subject: [PATCH 1/4] locks: minor lease cleanup
Date: Fri, 19 Aug 2011 12:07:48 -0400	[thread overview]
Message-ID: <1313770071-353-1-git-send-email-bfields@redhat.com> (raw)
In-Reply-To: <20110819160416.GC30856-uC3wQj2KruNg9hUCZPvPmw@public.gmane.org>

Use a helper function, to simplify upcoming changes.

Reviewed-by: Jeff Layton <jlayton-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Signed-off-by: J. Bruce Fields <bfields-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
---
 fs/locks.c |   15 ++++++++++-----
 1 files changed, 10 insertions(+), 5 deletions(-)

diff --git a/fs/locks.c b/fs/locks.c
index 703f545..c528522 100644
--- a/fs/locks.c
+++ b/fs/locks.c
@@ -133,6 +133,11 @@
 #define IS_FLOCK(fl)	(fl->fl_flags & FL_FLOCK)
 #define IS_LEASE(fl)	(fl->fl_flags & FL_LEASE)
 
+static bool lease_breaking(struct file_lock *fl)
+{
+	return fl->fl_type & F_INPROGRESS;
+}
+
 int leases_enable = 1;
 int lease_break_time = 45;
 
@@ -1141,7 +1146,7 @@ static void time_out_leases(struct inode *inode)
 	struct file_lock *fl;
 
 	before = &inode->i_flock;
-	while ((fl = *before) && IS_LEASE(fl) && (fl->fl_type & F_INPROGRESS)) {
+	while ((fl = *before) && IS_LEASE(fl) && lease_breaking(fl)) {
 		if ((fl->fl_break_time == 0)
 				|| time_before(jiffies, fl->fl_break_time)) {
 			before = &fl->fl_next;
@@ -1189,7 +1194,7 @@ int __break_lease(struct inode *inode, unsigned int mode)
 	if (want_write) {
 		/* If we want write access, we have to revoke any lease. */
 		future = F_UNLCK | F_INPROGRESS;
-	} else if (flock->fl_type & F_INPROGRESS) {
+	} else if (lease_breaking(flock)) {
 		/* If the lease is already being broken, we just leave it */
 		future = flock->fl_type;
 	} else if (flock->fl_type & F_WRLCK) {
@@ -1246,7 +1251,7 @@ restart:
 		/* Wait for the next lease that has not been broken yet */
 		for (flock = inode->i_flock; flock && IS_LEASE(flock);
 				flock = flock->fl_next) {
-			if (flock->fl_type & F_INPROGRESS)
+			if (lease_breaking(flock))
 				goto restart;
 		}
 		error = 0;
@@ -2126,7 +2131,7 @@ static void lock_get_status(struct seq_file *f, struct file_lock *fl,
 		}
 	} else if (IS_LEASE(fl)) {
 		seq_printf(f, "LEASE  ");
-		if (fl->fl_type & F_INPROGRESS)
+		if (lease_breaking(fl))
 			seq_printf(f, "BREAKING  ");
 		else if (fl->fl_file)
 			seq_printf(f, "ACTIVE    ");
@@ -2142,7 +2147,7 @@ static void lock_get_status(struct seq_file *f, struct file_lock *fl,
 			       : (fl->fl_type & LOCK_WRITE) ? "WRITE" : "NONE ");
 	} else {
 		seq_printf(f, "%s ",
-			       (fl->fl_type & F_INPROGRESS)
+			       (lease_breaking(fl))
 			       ? (fl->fl_type & F_UNLCK) ? "UNLCK" : "READ "
 			       : (fl->fl_type & F_WRLCK) ? "WRITE" : "READ ");
 	}
-- 
1.7.4.1

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  parent reply	other threads:[~2011-08-19 16:07 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-06-09 23:16 [PATCH] locks: breaking read lease should not block read open J. Bruce Fields
2011-06-10  7:56 ` Volker Lendecke
     [not found]   ` <E1QUwaT-00HRZw-74-dqLtpHMqGvUyWpdLl23E4A@public.gmane.org>
2011-06-10 13:48     ` J. Bruce Fields
     [not found]       ` <20110610134859.GA27837-uC3wQj2KruNg9hUCZPvPmw@public.gmane.org>
2011-07-21  0:07         ` J. Bruce Fields
2011-07-21  0:15           ` Jeremy Allison
2011-07-21 16:35             ` J. Bruce Fields
2011-07-29  2:27               ` J. Bruce Fields
2011-07-29  2:29                 ` [PATCH 1/3] locks: minor lease cleanup J. Bruce Fields
     [not found]                   ` <20110729022911.GA23194-uC3wQj2KruNg9hUCZPvPmw@public.gmane.org>
2011-07-29  2:29                     ` [PATCH 2/3] locks: move F_INPROGRESS from fl_type to fl_flags field J. Bruce Fields
     [not found]                       ` <20110729022941.GB23194-uC3wQj2KruNg9hUCZPvPmw@public.gmane.org>
2011-07-29  2:30                         ` [PATCH 3/3] locks: fix tracking of inprogress lease breaks J. Bruce Fields
2011-08-19 16:04                 ` [PATCH] locks: breaking read lease should not block read open J. Bruce Fields
     [not found]                   ` <20110819160416.GC30856-uC3wQj2KruNg9hUCZPvPmw@public.gmane.org>
2011-08-19 16:07                     ` J. Bruce Fields [this message]
2011-08-19 16:07                     ` [PATCH 2/4] locks: move F_INPROGRESS from fl_type to fl_flags field J. Bruce Fields
2011-08-19 16:07                     ` [PATCH 4/4] locks: setlease cleanup J. Bruce Fields
2011-08-19 16:07                   ` [PATCH 3/4] locks: fix tracking of inprogress lease breaks J. Bruce Fields
     [not found]           ` <20110721000758.GD27871-uC3wQj2KruNg9hUCZPvPmw@public.gmane.org>
2011-08-19 19:08             ` [PATCH] locks: breaking read lease should not block read open Jamie Lokier
2011-08-21 16:50               ` J. Bruce Fields
     [not found]                 ` <20110821165029.GA9296-uC3wQj2KruNg9hUCZPvPmw@public.gmane.org>
2011-11-21 12:46                   ` Jamie Lokier
2011-11-22 21:44                     ` J. Bruce Fields
     [not found]                       ` <20111122214441.GB23243-uC3wQj2KruNg9hUCZPvPmw@public.gmane.org>
2011-11-23  0:30                         ` Jamie Lokier
2011-11-23 19:08                           ` J. Bruce Fields

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