diff options
| -rw-r--r-- | drivers/ide/ide-disk.c | 2 | ||||
| -rw-r--r-- | drivers/ide/ide.c | 5 | ||||
| -rw-r--r-- | include/linux/ide.h | 1 |
3 files changed, 6 insertions, 2 deletions
diff --git a/drivers/ide/ide-disk.c b/drivers/ide/ide-disk.c index f712e4cfd9dc..7cf3eb023521 100644 --- a/drivers/ide/ide-disk.c +++ b/drivers/ide/ide-disk.c @@ -776,7 +776,7 @@ 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) && + barrier = ide_id_has_flush_cache(id) && !drive->noflush && (drive->addressing == 0 || capacity <= (1ULL << 28) || ide_id_has_flush_cache_ext(id)); diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c index 05fbd9298db7..defd4b4bd374 100644 --- a/drivers/ide/ide.c +++ b/drivers/ide/ide.c @@ -1539,7 +1539,7 @@ static int __init ide_setup(char *s) const char *hd_words[] = { "none", "noprobe", "nowerr", "cdrom", "serialize", "autotune", "noautotune", "minus8", "swapdata", "bswap", - "minus11", "remap", "remap63", "scsi", NULL }; + "noflush", "remap", "remap63", "scsi", NULL }; unit = s[2] - 'a'; hw = unit / MAX_DRIVES; unit = unit % MAX_DRIVES; @@ -1578,6 +1578,9 @@ static int __init ide_setup(char *s) case -10: /* "bswap" */ drive->bswap = 1; goto done; + case -11: /* noflush */ + drive->noflush = 1; + goto done; case -12: /* "remap" */ drive->remap_0_to_1 = 1; goto done; diff --git a/include/linux/ide.h b/include/linux/ide.h index dc7abef10965..99620451d958 100644 --- a/include/linux/ide.h +++ b/include/linux/ide.h @@ -571,6 +571,7 @@ typedef struct ide_drive_s { u8 waiting_for_dma; /* dma currently in progress */ u8 unmask; /* okay to unmask other irqs */ u8 bswap; /* byte swap data */ + u8 noflush; /* don't attempt flushes */ u8 dsc_overlap; /* DSC overlap */ u8 nice1; /* give potential excess bandwidth */ |