aboutsummaryrefslogtreecommitdiffstats
path: root/fs/locks.c
diff options
context:
space:
mode:
authorPatrick McHardy <kaber@trash.net>2013-03-31 18:10:34 +0200
committerPatrick McHardy <kaber@trash.net>2013-03-31 18:10:34 +0200
commit70711d223510ba1773cfe1d7770a56141c815ff8 (patch)
tree4a71f38a3a554ddecaa31b7d8c6bc49b7d1705b4 /fs/locks.c
parentd53b4ed072d9779cdf53582c46436dec06d0961f (diff)
parent19f949f52599ba7c3f67a5897ac6be14bfcb1200 (diff)
Merge tag 'v3.8' of /home/kaber/src/repos/linux
Linux 3.8 Signed-off-by: Patrick McHardy <kaber@trash.net> Conflicts: include/linux/Kbuild include/linux/netlink.h
Diffstat (limited to 'fs/locks.c')
-rw-r--r--fs/locks.c66
1 files changed, 27 insertions, 39 deletions
diff --git a/fs/locks.c b/fs/locks.c
index fce6238d52c..a94e331a52a 100644
--- a/fs/locks.c
+++ b/fs/locks.c
@@ -200,11 +200,7 @@ void locks_release_private(struct file_lock *fl)
fl->fl_ops->fl_release_private(fl);
fl->fl_ops = NULL;
}
- if (fl->fl_lmops) {
- if (fl->fl_lmops->lm_release_private)
- fl->fl_lmops->lm_release_private(fl);
- fl->fl_lmops = NULL;
- }
+ fl->fl_lmops = NULL;
}
EXPORT_SYMBOL_GPL(locks_release_private);
@@ -308,7 +304,7 @@ static int flock_make_lock(struct file *filp, struct file_lock **lock,
return 0;
}
-static int assign_type(struct file_lock *fl, int type)
+static int assign_type(struct file_lock *fl, long type)
{
switch (type) {
case F_RDLCK:
@@ -427,25 +423,15 @@ static void lease_break_callback(struct file_lock *fl)
kill_fasync(&fl->fl_fasync, SIGIO, POLL_MSG);
}
-static void lease_release_private_callback(struct file_lock *fl)
-{
- if (!fl->fl_file)
- return;
-
- f_delown(fl->fl_file);
- fl->fl_file->f_owner.signum = 0;
-}
-
static const struct lock_manager_operations lease_manager_ops = {
.lm_break = lease_break_callback,
- .lm_release_private = lease_release_private_callback,
.lm_change = lease_modify,
};
/*
* Initialize a lease, use the default lock manager operations
*/
-static int lease_init(struct file *filp, int type, struct file_lock *fl)
+static int lease_init(struct file *filp, long type, struct file_lock *fl)
{
if (assign_type(fl, type) != 0)
return -EINVAL;
@@ -463,7 +449,7 @@ static int lease_init(struct file *filp, int type, struct file_lock *fl)
}
/* Allocate a file_lock initialised to this type of lease */
-static struct file_lock *lease_alloc(struct file *filp, int type)
+static struct file_lock *lease_alloc(struct file *filp, long type)
{
struct file_lock *fl = locks_alloc_lock();
int error = -ENOMEM;
@@ -580,12 +566,6 @@ static void locks_delete_lock(struct file_lock **thisfl_p)
fl->fl_next = NULL;
list_del_init(&fl->fl_link);
- fasync_helper(0, fl->fl_file, 0, &fl->fl_fasync);
- if (fl->fl_fasync != NULL) {
- printk(KERN_ERR "locks_delete_lock: fasync == %p\n", fl->fl_fasync);
- fl->fl_fasync = NULL;
- }
-
if (fl->fl_nspid) {
put_pid(fl->fl_nspid);
fl->fl_nspid = NULL;
@@ -1155,8 +1135,18 @@ int lease_modify(struct file_lock **before, int arg)
return error;
lease_clear_pending(fl, arg);
locks_wake_up_blocks(fl);
- if (arg == F_UNLCK)
+ if (arg == F_UNLCK) {
+ struct file *filp = fl->fl_file;
+
+ f_delown(filp);
+ filp->f_owner.signum = 0;
+ fasync_helper(0, fl->fl_file, 0, &fl->fl_fasync);
+ if (fl->fl_fasync != NULL) {
+ printk(KERN_ERR "locks_delete_lock: fasync == %p\n", fl->fl_fasync);
+ fl->fl_fasync = NULL;
+ }
locks_delete_lock(before);
+ }
return 0;
}
@@ -1299,7 +1289,7 @@ EXPORT_SYMBOL(__break_lease);
void lease_get_mtime(struct inode *inode, struct timespec *time)
{
struct file_lock *flock = inode->i_flock;
- if (flock && IS_LEASE(flock) && (flock->fl_type & F_WRLCK))
+ if (flock && IS_LEASE(flock) && (flock->fl_type == F_WRLCK))
*time = current_fs_time(inode->i_sb);
else
*time = inode->i_mtime;
@@ -1635,15 +1625,13 @@ EXPORT_SYMBOL(flock_lock_file_wait);
*/
SYSCALL_DEFINE2(flock, unsigned int, fd, unsigned int, cmd)
{
- struct file *filp;
- int fput_needed;
+ struct fd f = fdget(fd);
struct file_lock *lock;
int can_sleep, unlock;
int error;
error = -EBADF;
- filp = fget_light(fd, &fput_needed);
- if (!filp)
+ if (!f.file)
goto out;
can_sleep = !(cmd & LOCK_NB);
@@ -1651,31 +1639,31 @@ SYSCALL_DEFINE2(flock, unsigned int, fd, unsigned int, cmd)
unlock = (cmd == LOCK_UN);
if (!unlock && !(cmd & LOCK_MAND) &&
- !(filp->f_mode & (FMODE_READ|FMODE_WRITE)))
+ !(f.file->f_mode & (FMODE_READ|FMODE_WRITE)))
goto out_putf;
- error = flock_make_lock(filp, &lock, cmd);
+ error = flock_make_lock(f.file, &lock, cmd);
if (error)
goto out_putf;
if (can_sleep)
lock->fl_flags |= FL_SLEEP;
- error = security_file_lock(filp, lock->fl_type);
+ error = security_file_lock(f.file, lock->fl_type);
if (error)
goto out_free;
- if (filp->f_op && filp->f_op->flock)
- error = filp->f_op->flock(filp,
+ if (f.file->f_op && f.file->f_op->flock)
+ error = f.file->f_op->flock(f.file,
(can_sleep) ? F_SETLKW : F_SETLK,
lock);
else
- error = flock_lock_file_wait(filp, lock);
+ error = flock_lock_file_wait(f.file, lock);
out_free:
locks_free_lock(lock);
out_putf:
- fput_light(filp, fput_needed);
+ fdput(f);
out:
return error;
}
@@ -2197,8 +2185,8 @@ static void lock_get_status(struct seq_file *f, struct file_lock *fl,
} else {
seq_printf(f, "%s ",
(lease_breaking(fl))
- ? (fl->fl_type & F_UNLCK) ? "UNLCK" : "READ "
- : (fl->fl_type & F_WRLCK) ? "WRITE" : "READ ");
+ ? (fl->fl_type == F_UNLCK) ? "UNLCK" : "READ "
+ : (fl->fl_type == F_WRLCK) ? "WRITE" : "READ ");
}
if (inode) {
#ifdef WE_CAN_BREAK_LSLK_NOW