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authorMoshe Shemesh <moshe@nvidia.com>2022-07-28 18:53:50 +0300
committerJakub Kicinski <kuba@kernel.org>2022-07-29 07:58:47 +0300
commitc90005b5f75ce3ef6170281ac4d77e8b7123995b (patch)
tree2bcdffb20146a6fcd7debe47874f9c0c26aef6d7 /net
parentd3dbdc9f8ddce46ae2646b2257106d8cdb3d5887 (diff)
downloadlinux-c90005b5f75ce3ef6170281ac4d77e8b7123995b.tar.xz
devlink: Hold the instance lock in health callbacks
Let the core take the devlink instance lock around health callbacks and remove the now redundant locking in the drivers. Signed-off-by: Moshe Shemesh <moshe@nvidia.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net')
-rw-r--r--net/core/devlink.c30
1 files changed, 14 insertions, 16 deletions
diff --git a/net/core/devlink.c b/net/core/devlink.c
index 216f26b9943d..c43c96554a3e 100644
--- a/net/core/devlink.c
+++ b/net/core/devlink.c
@@ -7757,6 +7757,7 @@ int devlink_health_report(struct devlink_health_reporter *reporter,
enum devlink_health_reporter_state prev_health_state;
struct devlink *devlink = reporter->devlink;
unsigned long recover_ts_threshold;
+ int ret;
/* write a log message of the current error */
WARN_ON(!msg);
@@ -7790,11 +7791,14 @@ int devlink_health_report(struct devlink_health_reporter *reporter,
mutex_unlock(&reporter->dump_lock);
}
- if (reporter->auto_recover)
- return devlink_health_reporter_recover(reporter,
- priv_ctx, NULL);
+ if (!reporter->auto_recover)
+ return 0;
- return 0;
+ devl_lock(devlink);
+ ret = devlink_health_reporter_recover(reporter, priv_ctx, NULL);
+ devl_unlock(devlink);
+
+ return ret;
}
EXPORT_SYMBOL_GPL(devlink_health_report);
@@ -9469,8 +9473,7 @@ static const struct genl_small_ops devlink_nl_ops[] = {
.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
.doit = devlink_nl_cmd_health_reporter_get_doit,
.dumpit = devlink_nl_cmd_health_reporter_get_dumpit,
- .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT |
- DEVLINK_NL_FLAG_NO_LOCK,
+ .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT,
/* can be retrieved by unprivileged users */
},
{
@@ -9478,24 +9481,21 @@ static const struct genl_small_ops devlink_nl_ops[] = {
.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
.doit = devlink_nl_cmd_health_reporter_set_doit,
.flags = GENL_ADMIN_PERM,
- .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT |
- DEVLINK_NL_FLAG_NO_LOCK,
+ .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT,
},
{
.cmd = DEVLINK_CMD_HEALTH_REPORTER_RECOVER,
.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
.doit = devlink_nl_cmd_health_reporter_recover_doit,
.flags = GENL_ADMIN_PERM,
- .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT |
- DEVLINK_NL_FLAG_NO_LOCK,
+ .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT,
},
{
.cmd = DEVLINK_CMD_HEALTH_REPORTER_DIAGNOSE,
.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
.doit = devlink_nl_cmd_health_reporter_diagnose_doit,
.flags = GENL_ADMIN_PERM,
- .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT |
- DEVLINK_NL_FLAG_NO_LOCK,
+ .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT,
},
{
.cmd = DEVLINK_CMD_HEALTH_REPORTER_DUMP_GET,
@@ -9509,16 +9509,14 @@ static const struct genl_small_ops devlink_nl_ops[] = {
.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
.doit = devlink_nl_cmd_health_reporter_dump_clear_doit,
.flags = GENL_ADMIN_PERM,
- .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT |
- DEVLINK_NL_FLAG_NO_LOCK,
+ .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT,
},
{
.cmd = DEVLINK_CMD_HEALTH_REPORTER_TEST,
.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
.doit = devlink_nl_cmd_health_reporter_test_doit,
.flags = GENL_ADMIN_PERM,
- .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT |
- DEVLINK_NL_FLAG_NO_LOCK,
+ .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT,
},
{
.cmd = DEVLINK_CMD_FLASH_UPDATE,