1. 30 Nov, 2018 1 commit
    • David Howells's avatar
      afs: Fix missing net error handling · 4584ae96
      David Howells authored
      kAFS can be given certain network errors (EADDRNOTAVAIL, EHOSTDOWN and
      ERFKILL) that it doesn't handle in its server/address rotation algorithms.
      They cause the probing and rotation to abort immediately rather than
      rotating.
      
      Fix this by:
      
       (1) Abstracting out the error prioritisation from the VL and FS rotation
           algorithms into a common function and expand usage into the server
           probing code.
      
           When multiple errors are available, this code selects the one we'd
           prefer to return.
      
       (2) Add handling for EADDRNOTAVAIL, EHOSTDOWN and ERFKILL.
      
      Fixes: 0fafdc9f ("afs: Fix file locking")
      Fixes: 0338747d8454 ("afs: Probe multiple fileservers simultaneously")
      Signed-off-by: default avatarDavid Howells <dhowells@redhat.com>
      Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
      4584ae96
  2. 23 Oct, 2018 1 commit
    • David Howells's avatar
      afs: Probe multiple fileservers simultaneously · 3bf0fb6f
      David Howells authored
      Send probes to all the unprobed fileservers in a fileserver list on all
      addresses simultaneously in an attempt to find out the fastest route whilst
      not getting stuck for 20s on any server or address that we don't get a
      reply from.
      
      This alleviates the problem whereby attempting to access a new server can
      take a long time because the rotation algorithm ends up rotating through
      all servers and addresses until it finds one that responds.
      Signed-off-by: default avatarDavid Howells <dhowells@redhat.com>
      3bf0fb6f