diff options
Diffstat (limited to '0092-RHBZ-689504-rdac-retry.patch')
| -rw-r--r-- | 0092-RHBZ-689504-rdac-retry.patch | 64 |
1 files changed, 0 insertions, 64 deletions
diff --git a/0092-RHBZ-689504-rdac-retry.patch b/0092-RHBZ-689504-rdac-retry.patch deleted file mode 100644 index f10eeae..0000000 --- a/0092-RHBZ-689504-rdac-retry.patch +++ /dev/null @@ -1,64 +0,0 @@ -From patchwork Tue Mar 1 19:08:24 2011 -Content-Type: text/plain; charset="utf-8" -MIME-Version: 1.0 -Content-Transfer-Encoding: 7bit -Subject: multipath: Retry host transient errors for rdac checker -Date: Tue, 01 Mar 2011 19:08:24 -0000 -From: Moger, Babu <Babu.Moger@lsi.com> -X-Patchwork-Id: 600411 -Message-Id: <E463DF2B2E584B4A82673F53D62C2EF4FF7DC637@cosmail01.lsi.com> -To: "dm-devel@redhat.com" <dm-devel@redhat.com> - -Sometimes if the host is in transient state, we need to wait till the devloss timeout to -expire before switching path group. We have seen in some cases path group switch happens -even before the devloss timeout expire. This patch fixes the problem for rdac checker.. - -Signed-off-by: Babu Moger <babu.moger@lsi.com> - ---- --- -dm-devel mailing list -dm-devel@redhat.com -https://www.redhat.com/mailman/listinfo/dm-devel - ---- - libmultipath/checkers/rdac.c | 18 ++++++++++++++++++ - 1 file changed, 18 insertions(+) - -Index: multipath-tools/libmultipath/checkers/rdac.c -=================================================================== ---- multipath-tools.orig/libmultipath/checkers/rdac.c -+++ multipath-tools/libmultipath/checkers/rdac.c -@@ -48,7 +48,9 @@ do_inq(int sg_fd, unsigned int pg_op, vo - unsigned char inqCmdBlk[INQUIRY_CMDLEN] = { INQUIRY_CMD, 1, 0, 0, 0, 0 }; - unsigned char sense_b[SENSE_BUFF_LEN]; - struct sg_io_hdr io_hdr; -+ int retry_rdac = 5; - -+retry: - inqCmdBlk[2] = (unsigned char) pg_op; - inqCmdBlk[4] = (unsigned char) (mx_resp_len & 0xff); - memset(&io_hdr, 0, sizeof (struct sg_io_hdr)); -@@ -72,6 +74,22 @@ do_inq(int sg_fd, unsigned int pg_op, vo - if ((0 == io_hdr.status) && (0 == io_hdr.host_status) && - (0 == io_hdr.driver_status)) - return 0; -+ -+ /* check if we need to retry this error */ -+ if (io_hdr.info & SG_INFO_OK_MASK) { -+ switch (io_hdr.host_status) { -+ case DID_BUS_BUSY: -+ case DID_ERROR: -+ case DID_TRANSPORT_DISRUPTED: -+ /* Transport error, retry */ -+ if (--retry_rdac) -+ goto retry; -+ break; -+ default: -+ break; -+ } -+ } -+ - if ((SCSI_CHECK_CONDITION == io_hdr.status) || - (SCSI_COMMAND_TERMINATED == io_hdr.status) || - (SG_ERR_DRIVER_SENSE == (0xf & io_hdr.driver_status))) { |