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authorBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2008-10-10 16:39:30 -0400
committerBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2008-10-10 16:39:30 -0400
commit4b58f17d7c45a8e5f4acda641bec388398b9c0fa (patch)
tree60ff1975dea044c3f268818f69001df5ac10eb42 /include/linux/ata.h
parent1a4e4d4d2cceb72be70526a485914abd638c7de1 (diff)
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>
Diffstat (limited to 'include/linux/ata.h')
-rw-r--r--include/linux/ata.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/include/linux/ata.h b/include/linux/ata.h
index 8162257b474f..921cf0fc337f 100644
--- a/include/linux/ata.h
+++ b/include/linux/ata.h
@@ -558,6 +558,15 @@ static inline int ata_id_has_flush(const u16 *id)
558 return id[ATA_ID_COMMAND_SET_2] & (1 << 12); 558 return id[ATA_ID_COMMAND_SET_2] & (1 << 12);
559} 559}
560 560
561static inline int ata_id_flush_enabled(const u16 *id)
562{
563 if (ata_id_has_flush(id) == 0)
564 return 0;
565 if ((id[ATA_ID_CSF_DEFAULT] & 0xC000) != 0x4000)
566 return 0;
567 return id[ATA_ID_CFS_ENABLE_2] & (1 << 12);
568}
569
561static inline int ata_id_has_flush_ext(const u16 *id) 570static inline int ata_id_has_flush_ext(const u16 *id)
562{ 571{
563 if ((id[ATA_ID_COMMAND_SET_2] & 0xC000) != 0x4000) 572 if ((id[ATA_ID_COMMAND_SET_2] & 0xC000) != 0x4000)