scsi: core: scmd_eh_abort_handler(): Add a comment
authorBart Van Assche <bart.vanassche@wdc.com>
Mon, 12 Feb 2018 18:38:05 +0000 (10:38 -0800)
committerMartin K. Petersen <martin.petersen@oracle.com>
Wed, 14 Feb 2018 02:49:16 +0000 (21:49 -0500)
commit923f46f9e9b0a2352c93500cda989996ff875cbd
tree474e51705317a217599a67d17c9bec7ad724fcc6
parented4414cef2ad0ad0afb3d77a6fdde425d7f7ec4d
scsi: core: scmd_eh_abort_handler(): Add a comment

After the patch that introduced this function was posted on the
linux-scsi mailing list an explanation was posted why this patch is
correct. Since that explanation contains important information, add a
summary of it above the code that explanation applies to.  See also
http://www.spinics.net/lists/linux-scsi/msg106326.html.

References: e494f6a72839 ("[SCSI] improved eh timeout handler")
Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
drivers/scsi/scsi_error.c