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authorBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2009-06-07 13:52:52 +0200
committerBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2009-06-07 13:52:52 +0200
commite957b60d1583022a0f7c03267d37fcae2ddb78b1 (patch)
tree5e9518eb38d427b9ac41c9b90b31b9b2453aebfc /include/linux/ide.h
parentdb429e9ec0f9dee2d8e50c154f04f29f880fc9d6 (diff)
downloadop-kernel-dev-e957b60d1583022a0f7c03267d37fcae2ddb78b1.zip
op-kernel-dev-e957b60d1583022a0f7c03267d37fcae2ddb78b1.tar.gz
ide-gd: implement block device ->set_capacity method (v2)
* Use ->probed_capacity to store native device capacity for ATA disks. * Add ->set_capacity method to struct ide_disk_ops. * Implement disk device ->set_capacity method for ATA disks. * Implement block device ->set_capacity method. v2: * Check if LBA and HPA are supported in ide_disk_set_capacity(). * According to the spec the SET MAX ADDRESS command shall be immediately preceded by a READ NATIVE MAX ADDRESS command. * Add ide_disk_hpa_{get_native,set}_capacity() helpers. Together with the previous patch adding ->set_capacity block device method this allows automatic disabling of Host Protected Area (HPA) if any partitions overlapping HPA are detected. Cc: Robert Hancock <hancockrwd@gmail.com> Cc: Frans Pop <elendil@planet.nl> Cc: "Andries E. Brouwer" <Andries.Brouwer@cwi.nl> Cc: Al Viro <viro@zeniv.linux.org.uk> Emphatically-Acked-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Diffstat (limited to 'include/linux/ide.h')
-rw-r--r--include/linux/ide.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/include/linux/ide.h b/include/linux/ide.h
index 9fed365..e96ace1 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -397,6 +397,7 @@ struct ide_drive_s;
struct ide_disk_ops {
int (*check)(struct ide_drive_s *, const char *);
int (*get_capacity)(struct ide_drive_s *);
+ u64 (*set_capacity)(struct ide_drive_s *, u64);
void (*setup)(struct ide_drive_s *);
void (*flush)(struct ide_drive_s *);
int (*init_media)(struct ide_drive_s *, struct gendisk *);
@@ -568,8 +569,7 @@ struct ide_drive_s {
unsigned int drive_data; /* used by set_pio_mode/dev_select() */
unsigned int failures; /* current failure count */
unsigned int max_failures; /* maximum allowed failure count */
- u64 probed_capacity;/* initial reported media capacity (ide-cd only currently) */
-
+ u64 probed_capacity;/* initial/native media capacity */
u64 capacity64; /* total number of sectors */
int lun; /* logical unit */
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