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kernel: Fix perf compile on 4.11.x/4.9.x kernels

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This cherry-picks 120010cb1eea151d38a3e66f5ffc79a0c3110292 ("tools build:
Add test for sched_getcpu()") which replaces a #ifdef based test with
a proper test for the sched_getcpu() function. The macro based condition
does not work on Alpine as it is conditional on GLIBC.

For 4.9 the cherry-pick needed some manual adjustment and also required
commit ef2c3e76d98dfb69a46d870b47656e8e5bac6e2b ("perf jit: Avoid returning
garbage for a ret variable")

Signed-off-by: Rolf Neugebauer <rolf.neugebauer@docker.com>
This commit is contained in:
Rolf Neugebauer
2017-06-14 12:51:47 -07:00
parent db78ab9879
commit 06c857fb16
26 changed files with 1139 additions and 66 deletions
Download Patch File Download Diff File Expand all files Collapse all files

105
kernel/patches-4.9.x/0006-Drivers-hv-vss-Improve-log-messages.patch Normal file
View File

@@ -0,0 +1,105 @@
From b005bf4a7605ae77dbb6547be58a2a00c1a204ed Mon Sep 17 00:00:00 2001
From: Alex Ng <alexng@messages.microsoft.com>
Date: Sun, 6 Nov 2016 13:14:10 -0800
Subject: [PATCH 06/12] Drivers: hv: vss: Improve log messages.
Adding log messages to help troubleshoot error cases and transaction
handling.
Signed-off-by: Alex Ng <alexng@microsoft.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Origin: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
(cherry picked from commit 23d2cc0c29eb0e7c6fe4cac88098306c31c40208)
---
drivers/hv/hv_snapshot.c | 25 +++++++++++++++++++------
1 file changed, 19 insertions(+), 6 deletions(-)
diff --git a/drivers/hv/hv_snapshot.c b/drivers/hv/hv_snapshot.c
index a76e3db0d01f..b1446d51ef45 100644
--- a/drivers/hv/hv_snapshot.c
+++ b/drivers/hv/hv_snapshot.c
@@ -121,7 +121,7 @@ static int vss_handle_handshake(struct hv_vss_msg *vss_msg)
default:
return -EINVAL;
}
- pr_debug("VSS: userspace daemon ver. %d connected\n", dm_reg_value);
+ pr_info("VSS: userspace daemon ver. %d connected\n", dm_reg_value);
return 0;
}
@@ -129,8 +129,10 @@ static int vss_on_msg(void *msg, int len)
{
struct hv_vss_msg *vss_msg = (struct hv_vss_msg *)msg;
- if (len != sizeof(*vss_msg))
+ if (len != sizeof(*vss_msg)) {
+ pr_debug("VSS: Message size does not match length\n");
return -EINVAL;
+ }
if (vss_msg->vss_hdr.operation == VSS_OP_REGISTER ||
vss_msg->vss_hdr.operation == VSS_OP_REGISTER1) {
@@ -138,8 +140,11 @@ static int vss_on_msg(void *msg, int len)
* Don't process registration messages if we're in the middle
* of a transaction processing.
*/
- if (vss_transaction.state > HVUTIL_READY)
+ if (vss_transaction.state > HVUTIL_READY) {
+ pr_debug("VSS: Got unexpected registration request\n");
return -EINVAL;
+ }
+
return vss_handle_handshake(vss_msg);
} else if (vss_transaction.state == HVUTIL_USERSPACE_REQ) {
vss_transaction.state = HVUTIL_USERSPACE_RECV;
@@ -156,7 +161,7 @@ static int vss_on_msg(void *msg, int len)
}
} else {
/* This is a spurious call! */
- pr_warn("VSS: Transaction not active\n");
+ pr_debug("VSS: Transaction not active\n");
return -EINVAL;
}
return 0;
@@ -169,8 +174,10 @@ static void vss_send_op(void)
struct hv_vss_msg *vss_msg;
/* The transaction state is wrong. */
- if (vss_transaction.state != HVUTIL_HOSTMSG_RECEIVED)
+ if (vss_transaction.state != HVUTIL_HOSTMSG_RECEIVED) {
+ pr_debug("VSS: Unexpected attempt to send to daemon\n");
return;
+ }
vss_msg = kzalloc(sizeof(*vss_msg), GFP_KERNEL);
if (!vss_msg)
@@ -211,9 +218,13 @@ static void vss_handle_request(struct work_struct *dummy)
case VSS_OP_HOT_BACKUP:
if (vss_transaction.state < HVUTIL_READY) {
/* Userspace is not registered yet */
+ pr_debug("VSS: Not ready for request.\n");
vss_respond_to_host(HV_E_FAIL);
return;
}
+
+ pr_debug("VSS: Received request for op code: %d\n",
+ vss_transaction.msg->vss_hdr.operation);
vss_transaction.state = HVUTIL_HOSTMSG_RECEIVED;
vss_send_op();
return;
@@ -356,8 +367,10 @@ hv_vss_init(struct hv_util_service *srv)
hvt = hvutil_transport_init(vss_devname, CN_VSS_IDX, CN_VSS_VAL,
vss_on_msg, vss_on_reset);
- if (!hvt)
+ if (!hvt) {
+ pr_warn("VSS: Failed to initialize transport\n");
return -EFAULT;
+ }
return 0;
}
--
2.13.0