lkml.org 
[lkml]   [2015]   [Dec]   [21]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
SubjectRe: IO errors after "block: remove bio_get_nr_vecs()"
Hello, Artem.

Can you please apply the following patch on top and see whether
anything changes? If it does make the issue go away, can you please
revert the ".can_queue" part and test again?

Thanks.

---
drivers/ata/ahci.h | 2 +-
drivers/ata/libahci.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/ata/ahci.h
+++ b/drivers/ata/ahci.h
@@ -365,7 +365,7 @@ extern struct device_attribute *ahci_sde
*/
#define AHCI_SHT(drv_name) \
ATA_NCQ_SHT(drv_name), \
- .can_queue = AHCI_MAX_CMDS - 1, \
+ .can_queue = 1/*AHCI_MAX_CMDS - 1*/, \
.sg_tablesize = AHCI_MAX_SG, \
.dma_boundary = AHCI_DMA_BOUNDARY, \
.shost_attrs = ahci_shost_attrs, \
--- a/drivers/ata/libahci.c
+++ b/drivers/ata/libahci.c
@@ -420,7 +420,7 @@ void ahci_save_initial_config(struct dev
hpriv->saved_cap2 = cap2 = 0;

/* some chips have errata preventing 64bit use */
- if ((cap & HOST_CAP_64) && (hpriv->flags & AHCI_HFLAG_32BIT_ONLY)) {
+ if ((cap & HOST_CAP_64)/* && (hpriv->flags & AHCI_HFLAG_32BIT_ONLY)*/) {
dev_info(dev, "controller can't do 64bit DMA, forcing 32bit\n");
cap &= ~HOST_CAP_64;
}
--
tejun


\
 
 \ /
  Last update: 2015-12-21 21:21    [W:0.744 / U:0.024 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site