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49d6271b85
This patch (as1347) makes some adjustments to the way usb-storage handles the request-queue parameters. USB host controllers are able to handle arbitrarily long scatter-gather lists, since they are limited only by main memory and not by the controller hardware. Hence the sg_tablesize field in the host template can be increased to the maximum value. Drivers like usb-storage aren't supposed to touch the queue's max_sectors parameter; instead they are supposed to use the max_hw_sectors value. Accordingly, the patch replaces calls of queue_max_sectors() with calls of queue_max_hw_sectors(). Oddly enough, the blk_queue_max_sectors() routine is nevertheless still appropriate. The existing code imposes a limit of SCSI_DEFAULT_MAX_SECTORS (1024) on the values accepted by the max_sectors attribute file. There's no reason not to accept larger values, so the limit is removed. (It would be nice to change the file's name to max_hw_sectors, but the old name is already a well-established API.) Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: Matthew Dharm <mdharm-usb@one-eyed-alien.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> |
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.. | ||
alauda.c | ||
cypress_atacb.c | ||
datafab.c | ||
debug.c | ||
debug.h | ||
freecom.c | ||
initializers.c | ||
initializers.h | ||
isd200.c | ||
jumpshot.c | ||
karma.c | ||
Kconfig | ||
libusual.c | ||
Makefile | ||
onetouch.c | ||
option_ms.c | ||
option_ms.h | ||
protocol.c | ||
protocol.h | ||
scsiglue.c | ||
scsiglue.h | ||
sddr09.c | ||
sddr55.c | ||
shuttle_usbat.c | ||
sierra_ms.c | ||
sierra_ms.h | ||
transport.c | ||
transport.h | ||
unusual_alauda.h | ||
unusual_cypress.h | ||
unusual_datafab.h | ||
unusual_devs.h | ||
unusual_freecom.h | ||
unusual_isd200.h | ||
unusual_jumpshot.h | ||
unusual_karma.h | ||
unusual_onetouch.h | ||
unusual_sddr09.h | ||
unusual_sddr55.h | ||
unusual_usbat.h | ||
usb.c | ||
usb.h | ||
usual-tables.c |