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authorAl Viro <viro@zeniv.linux.org.uk>2008-07-15 08:54:06 -0400
committerAl Viro <viro@zeniv.linux.org.uk>2008-07-26 20:53:12 -0400
commit9043476f726802f4b00c96d0c4f418dde48d1304 (patch)
tree9ead0294bc75e219c12b44fc7eb8996248400f2a /fs/hpfs
parentae7edecc9b8810770a8e5cb9a466ea4bdcfa8401 (diff)
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op-kernel-dev-9043476f726802f4b00c96d0c4f418dde48d1304.tar.gz
[PATCH] sanitize proc_sysctl
* keep references to ctl_table_head and ctl_table in /proc/sys inodes * grab the former during operations, use the latter for access to entry if that succeeds * have ->d_compare() check if table should be seen for one who does lookup; that allows us to avoid flipping inodes - if we have the same name resolve to different things, we'll just keep several dentries and ->d_compare() will reject the wrong ones. * have ->lookup() and ->readdir() scan the table of our inode first, then walk all ctl_table_header and scan ->attached_by for those that are attached to our directory. * implement ->getattr(). * get rid of insane amounts of tree-walking * get rid of the need to know dentry in ->permission() and of the contortions induced by that. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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