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restore smp_mb() in unlock_new_inode()

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wait_on_inode() doesn't have ->i_lock

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2012-03-10 17:07:28 -05:00
parent 7f6c7e62fc
commit 310fa7a367
1 changed files with 1 additions and 0 deletions
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fs/inode.c
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@ -965,6 +965,7 @@ void unlock_new_inode(struct inode *inode)
spin_lock(&inode->i_lock); spin_lock(&inode->i_lock);
WARN_ON(!(inode->i_state & I_NEW)); WARN_ON(!(inode->i_state & I_NEW));
inode->i_state &= ~I_NEW; inode->i_state &= ~I_NEW;
smp_mb();
wake_up_bit(&inode->i_state, __I_NEW); wake_up_bit(&inode->i_state, __I_NEW);
spin_unlock(&inode->i_lock); spin_unlock(&inode->i_lock);
} }