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reiserfs: open-code reiserfs_mutex_lock_safe() in reiserfs_unpack()

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... and have it use inode_lock()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2016-04-15 14:44:31 -04:00
parent 5ecfcb265f
commit 1ae1f3f647
1 changed files with 5 additions and 1 deletions
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6
fs/reiserfs/ioctl.c
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@ -187,7 +187,11 @@ int reiserfs_unpack(struct inode *inode, struct file *filp)
}
/* we need to make sure nobody is changing the file size beneath us */
reiserfs_mutex_lock_safe(&inode->i_mutex, inode->i_sb);
{
int depth = reiserfs_write_unlock_nested(inode->i_sb);
inode_lock(inode);
reiserfs_write_lock_nested(inode->i_sb, depth);
}
reiserfs_write_lock(inode->i_sb);