Messages in this thread |  | | Date | Tue, 9 Oct 2001 04:50:35 -0400 (EDT) | From | Alexander Viro <> | Subject | Re: [PATCH] devfs v194 available |
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On Tue, 9 Oct 2001, Richard Gooch wrote:
> Hi, all. Version 194 of my devfs patch is now available from: > http://www.atnf.csiro.au/~rgooch/linux/kernel-patches.html > The devfs FAQ is also available here. > > Patch directly available from: > ftp://ftp.??.kernel.org/pub/linux/kernel/people/rgooch/v2.4/devfs-patch-current.gz > > AND: > ftp://ftp.atnf.csiro.au/pub/people/rgooch/linux/kernel-patches/v2.4/devfs-patch-current.gz > > This is against 2.4.11-pre6. Highlights of this release: > > - Fixed overrun in <devfs_link> by removing function (not needed)
... doesn't fix _under_run in try_modload() (see what happens if namelen is 255 and parent is devfs root)
... doesn't fix the deadlock introduced into -pre6 in place of symlink races. That
/* Need to follow the link: this is a stack chomper */ down_read (&symlink_rwsem); retval = curr->registered ? search_for_entry (parent, curr->u.symlink.linkname, curr->u.symlink.length, FALSE, FALSE, NULL, TRUE) : NULL; up_read (&symlink_rwsem);
is a fairly bad idea. Think what happens if somebody else tries to acquire symlink_rwsem for write between two calls of down_read() in that recursion.
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