diff options
| author | Shivasharan S | 2017-08-23 13:47:03 +0200 |
|---|---|---|
| committer | Martin K. Petersen | 2017-08-25 04:29:14 +0200 |
| commit | def3e8dfe935f293da47c2684bc9fd2a927b7cc5 (patch) | |
| tree | 6a7cbf9b41e8c26131636d141b7fb3cdc122f08c /drivers/scsi/megaraid/megaraid_sas_base.c | |
| parent | scsi: megaraid_sas: Use SMID for Task abort case only (diff) | |
| download | kernel-qcow2-linux-def3e8dfe935f293da47c2684bc9fd2a927b7cc5.tar.gz kernel-qcow2-linux-def3e8dfe935f293da47c2684bc9fd2a927b7cc5.tar.xz kernel-qcow2-linux-def3e8dfe935f293da47c2684bc9fd2a927b7cc5.zip | |
scsi: megaraid_sas: use vmalloc for crash dump buffers and driver's local RAID map
Driver's local RAID map is accessed frequently. We will first try to get
memory from __get_free_pages. If this fails, fall back to using vmalloc.
For crash dump buffers always prefer vmalloc.
Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com>
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/megaraid/megaraid_sas_base.c')
| -rw-r--r-- | drivers/scsi/megaraid/megaraid_sas_base.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c index df2332f3e182..6b715bb90511 100644 --- a/drivers/scsi/megaraid/megaraid_sas_base.c +++ b/drivers/scsi/megaraid/megaraid_sas_base.c @@ -49,6 +49,7 @@ #include <linux/blkdev.h> #include <linux/mutex.h> #include <linux/poll.h> +#include <linux/vmalloc.h> #include <scsi/scsi.h> #include <scsi/scsi_cmnd.h> @@ -6671,9 +6672,14 @@ skip_firing_dcmds: fusion->max_map_sz, fusion->ld_map[i], fusion->ld_map_phys[i]); - if (fusion->ld_drv_map[i]) - free_pages((ulong)fusion->ld_drv_map[i], - fusion->drv_map_pages); + if (fusion->ld_drv_map[i]) { + if (is_vmalloc_addr(fusion->ld_drv_map[i])) + vfree(fusion->ld_drv_map[i]); + else + free_pages((ulong)fusion->ld_drv_map[i], + fusion->drv_map_pages); + } + if (fusion->pd_seq_sync[i]) dma_free_coherent(&instance->pdev->dev, pd_seq_map_sz, |