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: Arnd Bergmann <arnd@arndb.de>
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2 changed files with 3 additions and 3 deletions
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@ -50,7 +50,6 @@ endif # BLOCK
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config FILE_LOCKING
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bool "Enable POSIX file locking API" if EMBEDDED
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default y
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select BKL # while lockd still uses it.
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help
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This option enables standard file locking support, required
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for filesystems like NFS and for the flock() system
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@ -142,6 +142,7 @@ int lease_break_time = 45;
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static LIST_HEAD(file_lock_list);
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static LIST_HEAD(blocked_list);
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static DEFINE_SPINLOCK(file_lock_lock);
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/*
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* Protects the two list heads above, plus the inode->i_flock list
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@ -149,13 +150,13 @@ static LIST_HEAD(blocked_list);
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*/
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void lock_flocks(void)
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{
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lock_kernel();
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spin_lock(&file_lock_lock);
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}
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EXPORT_SYMBOL_GPL(lock_flocks);
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void unlock_flocks(void)
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{
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unlock_kernel();
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spin_unlock(&file_lock_lock);
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}
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EXPORT_SYMBOL_GPL(unlock_flocks);
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