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由 Eric W. Biederman 提交于
bb->vm_ops is a cached copy of the vm_ops of the underlying sysfs bin file, which means that after sysfs_bin_remove_file completes it is only longer valid to deference bb->vm_ops. So move all of the tests of bb->vm_ops inside of where we hold the sysfs active lock. Signed-off-by: NEric W. Biederman <ebiederm@aristanetworks.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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