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List: linux-fsdevel
Subject: [PATCH 9 of 10] lease interfaces for version 4 NFSD
From: Andy Adamson <andros () thnk ! citi ! umich ! edu>
Date: 2004-09-21 22:36:21
Message-ID: 1095804047.21441d5b.9 () citi ! umich ! edu
[Download RAW message or body]
VFS: export remove_lease(), an interface to time_out_leases() with an
fl_break_time in the past. needed by nfsd
Signed-off-by: Andy Adamson <andros@citi.umich.edu>
---
linux-2.6.9-rc2-andros/fs/locks.c | 20 ++++++++++++++++++++
linux-2.6.9-rc2-andros/include/linux/fs.h | 1 +
2 files changed, 21 insertions(+)
diff -puN fs/locks.c~remove-lease fs/locks.c
--- linux-2.6.9-rc2/fs/locks.c~remove-lease 2004-09-21 18:00:33.448882176 -0400
+++ linux-2.6.9-rc2-andros/fs/locks.c 2004-09-21 18:00:33.454881264 -0400
@@ -1088,6 +1088,26 @@ static void time_out_leases(struct inode
}
}
+ /**
+* remove_lease - let time_out_leases remove the lease.
+* @@file_lock: the lease to remove
+*/
+void remove_lease(struct file_lock *fl)
+{
+ if (!IS_LEASE(fl))
+ return;
+
+ lock_kernel();
+
+ fl->fl_type = F_UNLCK | F_INPROGRESS;
+ fl->fl_break_time = jiffies - 10;
+ time_out_leases(fl->fl_file->f_dentry->d_inode);
+
+ unlock_kernel();
+}
+
+EXPORT_SYMBOL(remove_lease);
+
/**
* __break_lease - revoke all outstanding leases on file
* @inode: the inode of the file to return
diff -puN include/linux/fs.h~remove-lease include/linux/fs.h
--- linux-2.6.9-rc2/include/linux/fs.h~remove-lease 2004-09-21 18:00:33.450881872 -0400
+++ linux-2.6.9-rc2-andros/include/linux/fs.h 2004-09-21 18:00:33.455881112 -0400
@@ -702,6 +702,7 @@ extern int flock_lock_file_wait(struct f
extern int __break_lease(struct inode *inode, unsigned int flags);
extern void lease_get_mtime(struct inode *, struct timespec *time);
extern int setlease(struct file *, long, struct file_lock **);
+extern void remove_lease(struct file_lock *);
extern int lock_may_read(struct inode *, loff_t start, unsigned long count);
extern int lock_may_write(struct inode *, loff_t start, unsigned long count);
extern void steal_locks(fl_owner_t from);
_
-
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