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  1. 12 4月, 2016 2 次提交
  3. 24 2月, 2016 1 次提交
  5. 07 8月, 2015 1 次提交
  7. 31 7月, 2015 1 次提交
    • C
      iSCSI: let session recovery_tmo sysfs writes persist across recovery · 9c8108a4
      由 Chris Leech 提交于 
      The iSCSI session recovery_tmo setting is writeable in sysfs, but it's
also set every time a connection is established when parameters are set
from iscsid over netlink.  That results in the timeout being reset to
the default value after every recovery.

The DM multipath tools want to use the sysfs interface to lower the
default timeout when there are multiple paths to fail over.  It has
caused confusion that we have a writeable sysfs value that seem to keep
resetting itself.

This patch adds an in-kernel flag that gets set once a sysfs write
occurs, and then ignores netlink parameter setting once it's been
modified via the sysfs interface.  My thinking here is that the sysfs
interface is much simpler for external tools to influence the session
timeout, but if we're going to allow it to be modified directly we
should ensure that setting is maintained.
Signed-off-by: NChris Leech <cleech@redhat.com>
Reviewed-by: NMike Christie <michaelc@cs.wisc.edu>
Signed-off-by: NJames Bottomley <JBottomley@Odin.com>
      9c8108a4
  9. 03 6月, 2015 1 次提交
  11. 04 8月, 2014 1 次提交
  13. 01 8月, 2014 2 次提交
  15. 26 7月, 2014 1 次提交
  17. 18 7月, 2014 1 次提交
  19. 19 2月, 2014 1 次提交
  21. 20 12月, 2013 2 次提交
  23. 17 12月, 2013 1 次提交
  25. 25 10月, 2013 1 次提交
  27. 24 8月, 2013 1 次提交
  29. 27 6月, 2013 1 次提交
  31. 10 5月, 2013 1 次提交
  33. 03 5月, 2013 1 次提交
  35. 12 4月, 2013 1 次提交
  37. 29 3月, 2013 1 次提交
  39. 07 2月, 2013 1 次提交
  41. 29 1月, 2013 1 次提交
  43. 11 9月, 2012 1 次提交
  45. 09 9月, 2012 1 次提交
  47. 20 7月, 2012 1 次提交
  49. 30 6月, 2012 1 次提交
    • P
      netlink: add netlink_kernel_cfg parameter to netlink_kernel_create · a31f2d17
      由 Pablo Neira Ayuso 提交于 
      This patch adds the following structure:

struct netlink_kernel_cfg {
        unsigned int    groups;
        void            (*input)(struct sk_buff *skb);
        struct mutex    *cb_mutex;
};

That can be passed to netlink_kernel_create to set optional configurations
for netlink kernel sockets.

I've populated this structure by looking for NULL and zero parameters at the
existing code. The remaining parameters that always need to be set are still
left in the original interface.

That includes optional parameters for the netlink socket creation. This allows
easy extensibility of this interface in the future.

This patch also adapts all callers to use this new interface.
Signed-off-by: NPablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      a31f2d17
  51. 25 6月, 2012 1 次提交
    • T
      block: drop custom queue draining used by scsi_transport_{iscsi|fc} · 86072d81
      由 Tejun Heo 提交于 
      iscsi_remove_host() uses bsg_remove_queue() which implements custom
queue draining.  fc_bsg_remove() open-codes mostly identical logic.

The draining logic isn't correct in that blk_stop_queue() doesn't
prevent new requests from being queued - it just stops processing, so
nothing prevents new requests to be queued after the logic determines
that the queue is drained.

blk_cleanup_queue() now implements proper queue draining and these
custom draining logics aren't necessary.  Drop them and use
bsg_unregister_queue() + blk_cleanup_queue() instead.
Signed-off-by: NTejun Heo <tj@kernel.org>
Reviewed-by: NMike Christie <michaelc@cs.wisc.edu>
Acked-by: NVivek Goyal <vgoyal@redhat.com>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Cc: James Smart <james.smart@emulex.com>
Signed-off-by: NJens Axboe <axboe@kernel.dk>
      86072d81
  53. 27 3月, 2012 1 次提交
  55. 01 3月, 2012 2 次提交
  57. 19 2月, 2012 5 次提交
  59. 04 1月, 2012 1 次提交
  61. 15 12月, 2011 1 次提交
    • M
      [SCSI] iscsi class: export pid of process that created · 0c70d84b
      由 Mike Christie 提交于 
      There could be multiple userspace entities creating/destroying/
recoverying sessions and also the kernel's iscsi drivers could
be doing this too. If the userspace apps do try to manage the kernel
ones it can get the driver/fw out of sync and cause the user to
loose the root disk, oopses or ping ponging becasue userspace
wants to do one thing but the kernel manager thought we
are trying to do another.

This patch fixes the problem by just exporting the pid of
the entity that created the session. Userspace programs like
iscsid, iscsiadm, iscsistart, qlogic's tools, etc, can then
figure out which sessions they own and only manage them.
Signed-off-by: NMike Christie <michaelc@cs.wisc.edu>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>
      0c70d84b
  63. 03 11月, 2011 1 次提交