OpenCloudOS-Kernel/drivers
Alan Stern 44ec95425c [SCSI] sg: cap reserved_size values at max_sectors
This patch (as857) modifies the SG_GET_RESERVED_SIZE and
SG_SET_RESERVED_SIZE ioctls in the sg driver, capping the values at
the device's request_queue's max_sectors value.  This will permit
cdrecord to obtain a legal value for the maximum transfer length,
fixing Bugzilla #7026.

The patch also caps the initial reserved_size value.  There's no
reason to have a reserved buffer larger than max_sectors, since it
would be impossible to use the extra space.

The corresponding ioctls in the block layer are modified similarly,
and the initial value for the reserved_size is set as large as
possible.  This will effectively make it default to max_sectors.
Note that the actual value is meaningless anyway, since block devices
don't have a reserved buffer.

Finally, the BLKSECTGET ioctl is added to sg, so that there will be a
uniform way for users to determine the actual max_sectors value for
any raw SCSI transport.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: Jens Axboe <jens.axboe@oracle.com>
Acked-by: Douglas Gilbert <dougg@torque.net>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-04-17 18:09:56 -04:00
..
acorn [ARM] Acorn: move the i2c bus driver into drivers/i2c 2007-03-04 20:40:50 +00:00
acpi Pull misc-for-upstream into release branch 2007-03-09 23:19:50 -05:00
amba
ata Pull bugzilla-7907 into release branch 2007-03-09 23:18:53 -05:00
atm atm: Use ARRAY_SIZE macro when appropriate 2007-02-17 15:30:48 -05:00
auxdisplay [PATCH] cfag12864b: fix crash when built-in and no parport present 2007-02-20 17:10:14 -08:00
base driver core: export device_rename 2007-03-09 15:32:58 -08:00
block [PATCH] initramfs should not depend on CONFIG_BLOCK 2007-03-06 09:30:25 -08:00
bluetooth [Bluetooth] Make use of MODULE_FIRMWARE 2007-02-26 11:42:42 -08:00
cdrom [PATCH] Fix soft lockup with iSeries viocd driver 2007-03-05 07:57:51 -08:00
char [CHAR] ds1286: Fix handling of seconds in RTC_ALM_SET ioctl. 2007-03-08 01:10:30 +00:00
clocksource [PATCH] clocksource init adjustments (fix bug #7426) 2007-03-05 07:57:53 -08:00
connector [CONNECTOR]: Bugfix for cn_call_callback() 2007-03-07 16:08:08 -08:00
cpufreq Revert "[CPUFREQ] constify cpufreq_driver where possible." 2007-02-26 14:55:48 -08:00
crypto [PATCH] geode-aes: use unsigned long for spin_lock_irqsave 2007-03-06 09:30:25 -08:00
dio
dma
edac [PATCH] EDAC: Add Fully-Buffered DIMM APIs to core 2007-02-12 09:48:32 -08:00
eisa
fc4 [PATCH] remove many unneeded #includes of sched.h 2007-02-14 08:09:54 -08:00
firmware [PATCH] docbook: add edd firmware interfaces 2007-02-11 10:51:32 -08:00
hid HID: fix Logitech DiNovo Edge touchwheel and Logic3 /SpectraVideo middle button 2007-03-01 09:54:44 +01:00
hwmon hwmon/vt1211: Add probing of alternate config index port 2007-02-14 21:15:05 +01:00
i2c [ARM] Acorn: move the i2c bus driver into drivers/i2c 2007-03-04 20:40:50 +00:00
ide ide: make legacy IDE VLB modules check for the "probe" kernel params (v2) 2007-03-03 17:48:55 +01:00
ieee1394 Merge git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial 2007-02-19 13:29:02 -08:00
infiniband [SCSI] iscsi: rename DEFAULT_MAX_RECV_DATA_SEGMENT_LENGTH 2007-03-11 11:26:50 -05:00
input Merge branch 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/dtor/input 2007-03-08 07:28:30 -08:00
isdn [PATCH] Fix buffer overflow and races in capi debug functions 2007-03-01 14:53:39 -08:00
kvm KVM: Move kvmfs magic number to <linux/magic.h> 2007-03-04 11:12:43 +02:00
leds leds: Add support for Cobalt Server front LED 2007-02-15 21:37:29 +00:00
macintosh backlight: Separate backlight properties from backlight ops pointers 2007-02-20 09:26:53 +00:00
mca
md [PATCH] md: fix for raid6 reshape 2007-03-05 07:57:53 -08:00
media V4L/DVB (5260): Cx88-blackbird: allow usage of both 376836 and 262144 sized firmware images 2007-03-03 10:14:36 -02:00
message [SCSI] fusion: make mptspi_target_destroy() static 2007-04-01 10:11:54 -05:00
mfd [PATCH] drivers/mfd/sm501.c: Replace pci_module_init with pci_register_driver 2007-02-26 12:35:47 -08:00
misc asus-laptop: make code static 2007-03-09 21:06:40 -05:00
mmc sdhci: release irq during suspend 2007-03-06 13:38:49 +01:00
mtd [MTD] [OneNAND] Classify the page data and oob buffer 2007-03-09 08:08:09 +00:00
net Merge branch 'upstream-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6 into upstream-fixes 2007-03-09 11:58:11 -05:00
nubus
oprofile [PATCH] mark struct file_operations const 5 2007-02-12 09:48:45 -08:00
parisc Merge master.kernel.org:/pub/scm/linux/kernel/git/kyle/parisc-2.6 2007-02-26 12:48:06 -08:00
parport [PATCH] parport_pc: fix parport_pc_probe_port section warning 2007-02-20 17:10:16 -08:00
pci pci: fix section mismatch warning 2007-03-09 15:36:30 -08:00
pcmcia Driver core: more fallout from class_device changes for pcmcia 2007-02-23 14:52:09 -08:00
pnp ACPI: fix parallel port IRQ after resume from S3 2007-03-08 23:29:29 -05:00
ps3 [POWERPC] PS3: System manager support 2007-02-16 14:00:19 +11:00
rapidio [PATCH] remove many unneeded #includes of sched.h 2007-02-14 08:09:54 -08:00
rtc [ARM] rtc-pcf8583: Final fixes for this RTC on RiscPC 2007-03-04 20:33:07 +00:00
s390 [SCSI] zfcp: fix initialization of FSF timer 2007-04-01 10:27:58 -05:00
sbus [SPARC] uctrl: Check request_irq() return value. 2007-02-26 11:35:51 -08:00
scsi [SCSI] sg: cap reserved_size values at max_sectors 2007-04-17 18:09:56 -04:00
serial [PATCH] 2.6 Altix: console fix for CONFIG_DEBUG_SHIRQ usage 2007-03-08 07:39:15 -08:00
sh
sn [PATCH] IOC3/IOC4: PCI mem space resources 2007-02-11 10:51:25 -08:00
spi [PATCH] spi_s3c2410_gpio.c spi mode 2 and 3 support 2007-02-20 17:10:16 -08:00
tc [PATCH] remove many unneeded #includes of sched.h 2007-02-14 08:09:54 -08:00
telephony [PATCH] remove many unneeded #includes of sched.h 2007-02-14 08:09:54 -08:00
usb Revert "USB: pxa2xx_udc: fix hardcoded irq number" 2007-03-10 14:22:07 -08:00
video [PATCH] fbdev: fix kconfig error if FB_DDC=n 2007-03-06 09:30:24 -08:00
w1 [PATCH] w1: Use ARRAY_SIZE macro when appropriate 2007-02-12 09:48:28 -08:00
zorro [PATCH] mark struct file_operations const 6 2007-02-12 09:48:45 -08:00
Kconfig [PATCH] drivers: add LCD support 2007-02-11 10:51:24 -08:00
Makefile [PATCH] drivers: add LCD support 2007-02-11 10:51:24 -08:00