• David Howells's avatar
    afs: Fix cell proc list · 6b3944e4
    David Howells authored
    Access to the list of cells by /proc/net/afs/cells has a couple of
     (1) It should be checking against SEQ_START_TOKEN for the keying the
         header line.
     (2) It's only holding the RCU read lock, so it can't just walk over the
         list without following the proper RCU methods.
    Fix these by using an hlist instead of an ordinary list and using the
    appropriate accessor functions to follow it with RCU.
    Since the code that adds a cell to the list must also necessarily change,
    sort the list on insertion whilst we're at it.
    Fixes: 989782dc ("afs: Overhaul cell database management")
    Signed-off-by: default avatarDavid Howells <dhowells@redhat.com>
    Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
main.c 6.27 KB