Commit 72f98e72 authored by Arnd Bergmann's avatar Arnd Bergmann
Browse files

locks: turn lock_flocks into a spinlock 



Nothing depends on lock_flocks using the BKL
any more, so we can do the switch over to
a private spinlock.

Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
parent f7347ce4

fs/Kconfig

+0 −1
Original line number Diff line number Diff line
@@ -50,7 +50,6 @@ endif # BLOCK 
config FILE_LOCKING

	bool "Enable POSIX file locking API" if EMBEDDED

	default y

	select BKL # while lockd still uses it.

	help

	  This option enables standard file locking support, required

          for filesystems like NFS and for the flock() system

fs/locks.c

+3 −2
Original line number Diff line number Diff line
@@ -142,6 +142,7 @@ int lease_break_time = 45; 


static LIST_HEAD(file_lock_list);

static LIST_HEAD(blocked_list);

static DEFINE_SPINLOCK(file_lock_lock);



/*

 * Protects the two list heads above, plus the inode->i_flock list
@@ -149,13 +150,13 @@ static LIST_HEAD(blocked_list); 
 */

void lock_flocks(void)

{

	lock_kernel();

	spin_lock(&file_lock_lock);

}

EXPORT_SYMBOL_GPL(lock_flocks);



void unlock_flocks(void)

{

	unlock_kernel();

	spin_unlock(&file_lock_lock);

}

EXPORT_SYMBOL_GPL(unlock_flocks);