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authorHans de Goede <hdegoede@redhat.com>2016-03-07 22:11:52 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2016-03-18 19:19:02 +0300
commit55ff8cfbc4e12a7d2187df523938cc671fbebdd1 (patch)
tree4516e36572fa6e8e3cf8f4044df384289180b9de /drivers
parent8835ba4a39cf53f705417b3b3a94eb067673f2c9 (diff)
downloadlinux-55ff8cfbc4e12a7d2187df523938cc671fbebdd1.tar.xz
USB: uas: Reduce can_queue to MAX_CMNDS
The uas driver can never queue more then MAX_CMNDS (- 1) tags and tags are shared between luns, so there is no need to claim that we can_queue some random large number. Not claiming that we can_queue 65536 commands, fixes the uas driver failing to initialize while allocating the tag map with a "Page allocation failure (order 7)" error on systems which have been running for a while and thus have fragmented memory. Cc: stable@vger.kernel.org Reported-and-tested-by: Yves-Alexis Perez <corsac@corsac.net> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/usb/storage/uas.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/storage/uas.c b/drivers/usb/storage/uas.c
index 44b096c1737b..13e4cc31bc79 100644
--- a/drivers/usb/storage/uas.c
+++ b/drivers/usb/storage/uas.c
@@ -836,7 +836,7 @@ static struct scsi_host_template uas_host_template = {
.slave_configure = uas_slave_configure,
.eh_abort_handler = uas_eh_abort_handler,
.eh_bus_reset_handler = uas_eh_bus_reset_handler,
- .can_queue = 65536, /* Is there a limit on the _host_ ? */
+ .can_queue = MAX_CMNDS,
.this_id = -1,
.sg_tablesize = SG_NONE,
.skip_settle_delay = 1,