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locks: minor lease cleanup 

Use a helper function, to simplify upcoming changes.

Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
This commit is contained in:
J. Bruce Fields 2011-07-26 20:10:51 -04:00
parent aadab6c6f4
commit ab83fa4b49
1 changed files with 10 additions and 5 deletions
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15
fs/locks.c
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@ -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 ");
}