ide: ide_id_has_flush_cache() -> ata_id_flush_enabled()

* Add ata_id_flush_enabled() inline helper to <linux/ata.h>.

* ide_id_has_flush_cache() -> ata_id_flush_enabled()

  The latter one also checks if the command is marked as
  supported in word 83 and validity of words 83 & 86.

Cc: Jeff Garzik <jgarzik@pobox.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/drivers/ide/ide-disk.c b/drivers/ide/ide-disk.c
index 8f49bc0ecbf8..7b24dff17460 100644
--- a/drivers/ide/ide-disk.c
+++ b/drivers/ide/ide-disk.c
@@ -651,7 +651,7 @@ static void update_ordered(ide_drive_t *drive)
                  * not available so we don't need to recheck that.
                  */
                 capacity = idedisk_capacity(drive);
-                barrier = ide_id_has_flush_cache(id) && !drive->noflush &&
+                barrier = ata_id_flush_enabled(id) && !drive->noflush &&
                         (drive->addressing == 0 || capacity <= (1ULL << 28) ||
                          ide_id_has_flush_cache_ext(id));
 
@@ -678,7 +678,7 @@ static int set_wcache(ide_drive_t *drive, int arg)
         if (arg < 0 || arg > 1)
                 return -EINVAL;
 
-        if (ide_id_has_flush_cache(drive->id)) {
+        if (ata_id_flush_enabled(drive->id)) {
                 memset(&args, 0, sizeof(ide_task_t));
                 args.tf.feature = arg ?
                         SETFEATURES_WC_ON : SETFEATURES_WC_OFF;
@@ -886,7 +886,7 @@ static void idedisk_setup(ide_drive_t *drive)
 
 static void ide_cacheflush_p(ide_drive_t *drive)
 {
-        if (!drive->wcache || !ide_id_has_flush_cache(drive->id))
+        if (!drive->wcache || ata_id_flush_enabled(drive->id) == 0)
                 return;
 
         if (do_idedisk_flushcache(drive))