Messages in this thread Patch in this message | | | Date | Thu, 20 Apr 2006 21:37:34 -0700 | From | Greg KH <> | Subject | [patch 02/22] 3ware 9000 disable local irqs during kmap_atomic |
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The attached patch for 2.6.17-rc2 updates the 3ware 9000 driver:
- Disable local interrupts during kmap/unmap_atomic().
Signed-off-by: Adam Radford <linuxraid@amcc.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
--- drivers/scsi/3w-9xxx.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-)
--- linux-2.6.16.9.orig/drivers/scsi/3w-9xxx.c +++ linux-2.6.16.9/drivers/scsi/3w-9xxx.c @@ -85,7 +85,7 @@ #include "3w-9xxx.h" /* Globals */ -#define TW_DRIVER_VERSION "2.26.02.005" +#define TW_DRIVER_VERSION "2.26.02.007" static TW_Device_Extension *twa_device_extension_list[TW_MAX_SLOT]; static unsigned int twa_device_extension_count; static int twa_major = -1; @@ -1944,9 +1944,13 @@ static void twa_scsiop_execute_scsi_comp } if (tw_dev->srb[request_id]->use_sg == 1) { struct scatterlist *sg = (struct scatterlist *)tw_dev->srb[request_id]->request_buffer; - char *buf = kmap_atomic(sg->page, KM_IRQ0) + sg->offset; + char *buf; + unsigned long flags = 0; + local_irq_save(flags); + buf = kmap_atomic(sg->page, KM_IRQ0) + sg->offset; memcpy(buf, tw_dev->generic_buffer_virt[request_id], sg->length); kunmap_atomic(buf - sg->offset, KM_IRQ0); + local_irq_restore(flags); } } } /* End twa_scsiop_execute_scsi_complete() */ -- - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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