From: Konstantin Khorenko <khore...@virtuozzo.com> Don't flood logs with messages like "sd 1:0:0:0: rejecting I/O to offline device".
On one hand this flooding is not useful for investigations, on anothre hand it can make serial console to feed up. https://jira.sw.ru/browse/PSBM-100118 Signed-off-by: Konstantin Khorenko <khore...@virtuozzo.com> (cherry-picked from vz7 commit 734978dda643 ("scsi: ratelimit messages about rejected I/O")) https://jira.sw.ru/browse/PSBM-127849 Signed-off-by: Valeriy Vdovin <valeriy.vdo...@virtuozzo.com> gorcunov@: - (cherry-picked from commit 75fde78a1d9 ("scsi: ratelimit messages about rejected I/O") - the name of routine has been changed to scsi_device_state_check so had to apply the commit manually Signed-off-by: Cyrill Gorcunov <gorcu...@virtuozzo.com> --- drivers/scsi/scsi_lib.c | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index 7456a26aef51..632a1cddbf22 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -1178,6 +1178,8 @@ static blk_status_t scsi_setup_scsi_cmnd(struct scsi_device *sdev, static blk_status_t scsi_device_state_check(struct scsi_device *sdev, struct request *req) { + static DEFINE_RATELIMIT_STATE(ratelimit, 5 * HZ, 10); + switch (sdev->sdev_state) { case SDEV_CREATED: return BLK_STS_OK; @@ -1190,8 +1192,10 @@ scsi_device_state_check(struct scsi_device *sdev, struct request *req) */ if (!sdev->offline_already) { sdev->offline_already = true; - sdev_printk(KERN_ERR, sdev, - "rejecting I/O to offline device\n"); + if (__ratelimit(&ratelimit)) { + sdev_printk(KERN_ERR, sdev, + "rejecting I/O to offline device\n"); + } } return BLK_STS_IOERR; case SDEV_DEL: @@ -1199,8 +1203,10 @@ scsi_device_state_check(struct scsi_device *sdev, struct request *req) * If the device is fully deleted, we refuse to * process any commands as well. */ - sdev_printk(KERN_ERR, sdev, - "rejecting I/O to dead device\n"); + if (__ratelimit(&ratelimit)) { + sdev_printk(KERN_ERR, sdev, + "rejecting I/O to dead device\n"); + } return BLK_STS_IOERR; case SDEV_BLOCK: case SDEV_CREATED_BLOCK: -- 2.31.1 _______________________________________________ Devel mailing list Devel@openvz.org https://lists.openvz.org/mailman/listinfo/devel
