Gitweb:     
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=319a7b7fb98f6927d6eedeb627f72f54c377f9ce
Commit:     319a7b7fb98f6927d6eedeb627f72f54c377f9ce
Parent:     0ed081ce203b0fd9a44763b70f41e36596f9b431
Author:     FUJITA Tomonori <[EMAIL PROTECTED]>
AuthorDate: Tue Jul 17 12:22:09 2007 +0200
Committer:  Jens Axboe <[EMAIL PROTECTED]>
CommitDate: Tue Jul 17 12:22:09 2007 +0200

    bsg: Kconfig updates
    
    - add the detailed explanation.
    - remove 'default y'.
    - make 'EXPERIMENTAL' keyword visible to the user in menu.
    
    Signed-off-by: FUJITA Tomonori <[EMAIL PROTECTED]>
    Signed-off-by: Jens Axboe <[EMAIL PROTECTED]>
---
 block/Kconfig |   13 +++++++++----
 1 files changed, 9 insertions(+), 4 deletions(-)

diff --git a/block/Kconfig b/block/Kconfig
index 6597b60..0768741 100644
--- a/block/Kconfig
+++ b/block/Kconfig
@@ -52,11 +52,16 @@ config LSF
 endif # BLOCK
 
 config BLK_DEV_BSG
-       bool "Block layer SG support"
+       bool "Block layer SG support v4 (EXPERIMENTAL)"
        depends on (SCSI=y) && EXPERIMENTAL
-       default y
        ---help---
-       Saying Y here will enable generic SG (SCSI generic) v4
-       support for any block device.
+       Saying Y here will enable generic SG (SCSI generic) v4 support
+       for any block device.
+
+       Unlike SG v3 (aka block/scsi_ioctl.c drivers/scsi/sg.c), SG v4
+       can handle complicated SCSI commands: tagged variable length cdbs
+       with bidirectional data transfers and generic request/response
+       protocols (e.g. Task Management Functions and SMP in Serial
+       Attached SCSI).
 
 source block/Kconfig.iosched
-
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