From: Al Viro <viro@zeniv.linux.org.uk>
Date: Mon, 6 Feb 2012 17:45:27 +0000 (-0500)
Subject: vfs: check i_nlink limits in vfs_{mkdir,rename_dir,link}
X-Git-Tag: v3.4-rc1~163^2~63
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8de52778798fe39660a8d6b26f290e0c93202761;p=pandora-kernel.git

vfs: check i_nlink limits in vfs_{mkdir,rename_dir,link}

New field of struct super_block - ->s_max_links.  Maximal allowed
value of ->i_nlink or 0; in the latter case all checks still need
to be done in ->link/->mkdir/->rename instances.  Note that this
limit applies both to directoris and to non-directories.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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