Messages in this thread | | | Date | Fri, 14 Jun 2002 12:55:28 +0900 | From | OHKUBO Katsuhiko <> | Subject | question: The use of s_op->write_super_lockfs/unlockfs |
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Hello.
There ars void write_super_lockfs(super_block *) void unlockfs(super_block *) in struct super_operations.
Ext3 and reiserfs have implementations of it. But I cannot find callers of it and system calls for it.
There are some pathches such as http://www.lifix.fi/listarchive/lkml/2001-08/msg00464.html but it's not included in Linux 2.4.18/2.5.21. drivers/md/lvm.c has only callers of functions in this patch if defined LVM_VFS_ENHANCEMENT, but there aren't function bodys.
Q1: Who does use s_op->write_super_lockfs/unlockfs now? Q2: How lockfs/unlockfs will be used in future? Q3: Is it enable to implement of system calls for lockfs/unlockfs without deadlocks?
Thanks in advance.
----------- OHKUBO Katsuhiko ohkubo-k@suri.co.jp
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