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[PATCH] 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>
This commit is contained in:
adam radford
2006-04-11 11:25:09 -07:00
committed by Greg Kroah-Hartman
parent 1d7e3fb722
commit c1cedaef64
1 changed files with 6 additions and 2 deletions
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drivers/scsi/3w-9xxx.c
+6 -2
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@@ -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_complete(TW_Device_Extension *tw_dev, int re
}
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() */