Messages in this thread | | | Date | Tue, 14 Oct 2014 08:41:00 -0700 | Subject | Re: [PATCH[ fix duplicate console-efi entries in pstore | From | Kees Cook <> |
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On Sun, Oct 12, 2014 at 8:09 PM, Valdis Kletnieks <Valdis.Kletnieks@vt.edu> wrote: > The pstore filesystem still creates duplicate filename/inode pairs for > some pstore types. Add the id to the filename to prevent that.
Looks good to me, thanks!
Acked-by: Kees Cook <keescook@chromium.org>
-Kees
> > Before patch: > > [/sys/fs/pstore] ls -li > total 0 > 1250 -r--r--r--. 1 root root 67 Sep 29 17:09 console-efi > 1250 -r--r--r--. 1 root root 67 Sep 29 17:09 console-efi > 1250 -r--r--r--. 1 root root 67 Sep 29 17:09 console-efi > 1250 -r--r--r--. 1 root root 67 Sep 29 17:09 console-efi > 1250 -r--r--r--. 1 root root 67 Sep 29 17:09 console-efi > 1250 -r--r--r--. 1 root root 67 Sep 29 17:09 console-efi > 1250 -r--r--r--. 1 root root 67 Sep 29 17:09 console-efi > 1250 -r--r--r--. 1 root root 67 Sep 29 17:09 console-efi > 1250 -r--r--r--. 1 root root 67 Sep 29 17:09 console-efi > > > After: > > [/sys/fs/pstore] ls -li > total 0 > 1232 -r--r--r--. 1 root root 148 Sep 29 17:09 console-efi-141202499100000 > 1231 -r--r--r--. 1 root root 67 Sep 29 17:09 console-efi-141202499200000 > 1230 -r--r--r--. 1 root root 148 Sep 29 17:44 console-efi-141202705400000 > 1229 -r--r--r--. 1 root root 67 Sep 29 17:44 console-efi-141202705500000 > 1228 -r--r--r--. 1 root root 67 Sep 29 20:42 console-efi-141203772600000 > 1227 -r--r--r--. 1 root root 148 Sep 29 23:42 console-efi-141204854900000 > 1226 -r--r--r--. 1 root root 67 Sep 29 23:42 console-efi-141204855000000 > 1225 -r--r--r--. 1 root root 148 Sep 29 23:59 console-efi-141204954200000 > 1224 -r--r--r--. 1 root root 67 Sep 29 23:59 console-efi-141204954400000 > > Signed-off-by: Valdis Kletnieks <valdis.kletnieks@vt.edu> > > --- linux-next/fs/pstore/inode.c.orig 2014-10-03 23:58:00.440386528 -0400 > +++ linux-next/fs/pstore/inode.c 2014-10-09 17:50:50.613829841 -0400 > @@ -320,10 +320,10 @@ int pstore_mkfile(enum pstore_type_id ty > compressed ? ".enc.z" : ""); > break; > case PSTORE_TYPE_CONSOLE: > - sprintf(name, "console-%s", psname); > + sprintf(name, "console-%s-%lld", psname, id); > break; > case PSTORE_TYPE_FTRACE: > - sprintf(name, "ftrace-%s", psname); > + sprintf(name, "ftrace-%s-%lld", psname, id); > break; > case PSTORE_TYPE_MCE: > sprintf(name, "mce-%s-%lld", psname, id); >
-- Kees Cook Chrome OS Security
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