diff mbox series

[net-next,v9,10/11] netdev-genl: Add PID for the NAPI thread

Message ID 170114342017.10303.12870950288473709897.stgit@anambiarhost.jf.intel.com (mailing list archive)
State Superseded
Delegated to: Netdev Maintainers
Headers show
Series Introduce queue and NAPI support in netdev-genl (Was: Introduce NAPI queues support) | expand

Checks

Context Check Description
netdev/series_format success Posting correctly formatted
netdev/codegen success Generated files up to date
netdev/tree_selection success Clearly marked for net-next, async
netdev/fixes_present success Fixes tag not required for -next series
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 1117 this patch: 1117
netdev/cc_maintainers warning 1 maintainers not CCed: edumazet@google.com
netdev/build_clang success Errors and warnings before: 1143 this patch: 1143
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/deprecated_api success None detected
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 1144 this patch: 1144
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 19 lines checked
netdev/build_clang_rust success No Rust files in patch. Skipping build
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0

Commit Message

Nambiar, Amritha Nov. 28, 2023, 3:50 a.m. UTC 
In the threaded NAPI mode, expose the PID of the NAPI thread.

Signed-off-by: Amritha Nambiar <amritha.nambiar@intel.com>
Reviewed-by: Sridhar Samudrala <sridhar.samudrala@intel.com>
---
 net/core/netdev-genl.c |    7 +++++++
 1 file changed, 7 insertions(+)
diff mbox series

Patch

diff --git a/net/core/netdev-genl.c b/net/core/netdev-genl.c
index e87d2f2d7fec..b39e9c8c0dc1 100644
--- a/net/core/netdev-genl.c
+++ b/net/core/netdev-genl.c
@@ -152,6 +152,7 @@  netdev_nl_napi_fill_one(struct sk_buff *rsp, struct napi_struct *napi,
 			const struct genl_info *info)
 {
 	void *hdr;
+	pid_t pid;
 
 	if (WARN_ON_ONCE(!napi->dev))
 		return -EINVAL;
@@ -172,6 +173,12 @@  netdev_nl_napi_fill_one(struct sk_buff *rsp, struct napi_struct *napi,
 	if (napi->irq >= 0 && nla_put_u32(rsp, NETDEV_A_NAPI_IRQ, napi->irq))
 		goto nla_put_failure;
 
+	if (napi->thread) {
+		pid = task_pid_nr(napi->thread);
+		if (nla_put_u32(rsp, NETDEV_A_NAPI_PID, pid))
+			goto nla_put_failure;
+	}
+
 	genlmsg_end(rsp, hdr);
 
 	return 0;