Posting messages to the host can fail because of transient resource related failures. Correctly deal with these failures and increase the number of attempts to post the message before giving up.
Signed-off-by: K. Y. Srinivasan <[email protected]> Cc: <[email protected]> --- drivers/hv/connection.c | 13 ++++++++++--- 1 files changed, 10 insertions(+), 3 deletions(-) diff --git a/drivers/hv/connection.c b/drivers/hv/connection.c index ae22e3c..16c2ccb 100644 --- a/drivers/hv/connection.c +++ b/drivers/hv/connection.c @@ -427,10 +427,17 @@ int vmbus_post_msg(void *buffer, size_t buflen) * insufficient resources. Retry the operation a couple of * times before giving up. */ - while (retries < 3) { - ret = hv_post_message(conn_id, 1, buffer, buflen); - if (ret != HV_STATUS_INSUFFICIENT_BUFFERS) + while (retries < 10) { + ret = hv_post_message(conn_id, 1, buffer, buflen); + + switch (ret) { + case HV_STATUS_INSUFFICIENT_BUFFERS: + case -ENOMEM: + break; + default: return ret; + } + retries++; msleep(100); } -- 1.7.4.1 _______________________________________________ devel mailing list [email protected] http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
