On Fri, Oct 31, 2014 at 07:51:59AM +0300, Timofey Titovets wrote: > 2014-10-31 3:06 GMT+03:00 Zbigniew Jędrzejewski-Szmek <zbys...@in.waw.pl>: > > On Thu, Oct 30, 2014 at 05:45:53PM +0300, Timofey Titovets wrote: > >> Good time of day, list. > >> I have try to fix "Fixme" in svg.c: > >> /* FIXME: this works only in the simple case */ > >> > >> By default function try to get only root=/dev/* > >> I also attach patch. Thanks. > >> > >> v2: > >> Rewrited with use fstab_node_to_udev_node() and > >> canonicalize_file_name() functions. > >> v3: > >> Rewrited for parsing /proc/self/mountinfo > >> > >> Please test it, i'm can't test because i not have /proc/schedstat > >> file (custom kernel) > >> > >> I use " 0 " for searching root device its correct?
findmnt -o TARGET,SOURCE,ID don't forget that mount IDs are sequential numbers and we usually don't mount the real root as the first thing (for example /sys, /proc, /dev are mounted more early in initrd). > >> For test: > >> [$]: grep " 0 " /proc/self/mountinfo > > No: > > > > 13 1 179:53 / / rw,noatime shared:1 - ext4 /dev/root rw,data=ordered > > > > Why not check field 5 for "/"? > > To be honest - I don't know how write it prettily >_< > read file with fscanf like: > fscanf(fd, "%s %s %s %s %s %s %s - %s %s %s\n", ...) //Looks ugly. > > Then, perhaps can i search 'shared:1 ' entry ? somewhere in systemd code is mountinfo parser.. or see https://github.com/karelzak/util-linux/blob/master/libmount/src/tab_parse.c#L124 it seems you also want to read: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/tree/Documentation/filesystems/proc.txt#n1589 Karel -- Karel Zak <k...@redhat.com> http://karelzak.blogspot.com _______________________________________________ systemd-devel mailing list systemd-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/systemd-devel