From c90005b5f75ce3ef6170281ac4d77e8b7123995b Mon Sep 17 00:00:00 2001 From: Moshe Shemesh Date: Thu, 28 Jul 2022 18:53:50 +0300 Subject: [PATCH] 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 Signed-off-by: Jakub Kicinski --- drivers/net/ethernet/mellanox/mlx5/core/health.c | 8 +------ net/core/devlink.c | 30 +++++++++++------------- 2 files changed, 15 insertions(+), 23 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/health.c b/drivers/net/ethernet/mellanox/mlx5/core/health.c index 6e154b5..2cf2c99 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/health.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/health.c @@ -622,14 +622,8 @@ mlx5_fw_fatal_reporter_recover(struct devlink_health_reporter *reporter, struct netlink_ext_ack *extack) { struct mlx5_core_dev *dev = devlink_health_reporter_priv(reporter); - struct devlink *devlink = priv_to_devlink(dev); - int ret; - devl_lock(devlink); - ret = mlx5_health_try_recover(dev); - devl_unlock(devlink); - - return ret; + return mlx5_health_try_recover(dev); } static int diff --git a/net/core/devlink.c b/net/core/devlink.c index 216f26b..c43c965 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, -- 2.7.4