scsi: hisi_sas: Add timestamp for a debugfs dump (d28ed83b) · Commits · 戴 / test

drivers/scsi/hisi_sas/hisi_sas.h

+2 −0

Original line number	Diff line number	Diff line
		@@ -21,6 +21,7 @@
		#include <linux/platform_device.h>
		#include <linux/property.h>
		#include <linux/regmap.h>
		#include <linux/timer.h>
		#include <scsi/sas_ata.h>
		#include <scsi/libsas.h>

		@@ -410,6 +411,7 @@ struct hisi_hba {
		struct hisi_sas_iost *debugfs_iost;
		struct hisi_sas_itct *debugfs_itct;
		u64 *debugfs_iost_cache;
		u64 debugfs_timestamp;
		u64 *debugfs_itct_cache;

		struct dentry *debugfs_dir;

+8 −0

Original line number	Diff line number	Diff line
		@@ -3194,6 +3194,7 @@ static const struct file_operations hisi_sas_debugfs_itct_cache_fops = {

		static void hisi_sas_debugfs_create_files(struct hisi_hba *hisi_hba)
		{
		u64 *debugfs_timestamp;
		struct dentry *dump_dentry;
		struct dentry *dentry;
		char name[256];
		@@ -3201,10 +3202,14 @@ static void hisi_sas_debugfs_create_files(struct hisi_hba *hisi_hba)
		int c;
		int d;

		debugfs_timestamp = &hisi_hba->debugfs_timestamp;
		/* Create dump dir inside device dir */
		dump_dentry = debugfs_create_dir("dump", hisi_hba->debugfs_dir);
		hisi_hba->debugfs_dump_dentry = dump_dentry;

		debugfs_create_u64("timestamp", 0400, dump_dentry,
		debugfs_timestamp);

		debugfs_create_file("global", 0400, dump_dentry, hisi_hba,
		&hisi_sas_debugfs_global_fops);

		@@ -3684,7 +3689,10 @@ void hisi_sas_debugfs_work_handler(struct work_struct *work)
		{
		struct hisi_hba *hisi_hba =
		container_of(work, struct hisi_hba, debugfs_work);
		u64 timestamp = local_clock();

		do_div(timestamp, NSEC_PER_MSEC);
		hisi_hba->debugfs_timestamp = timestamp;
		if (hisi_hba->debugfs_snapshot)
		return;
		hisi_hba->debugfs_snapshot = true;