tree 1799983732dd5dbedd59eb69661f11f49a7f1217
parent c2349df918cdfd47dfe6afaaeed9f504b83255d0
author Matthew Wilcox <matthew@wil.cx> 1143561824 -0500
committer James Bottomley <jejb@mulgrave.il.steeleye.com> 1144941205 -0500

[SCSI] Simplify error handling

Use wait_for_completion_timeout() instead of using a timer (as
Christoph Hellwig did for aic7xxx).

That lets me eliminate the sym_eh_wait structure; the struct completion,
the old_done pointer and the to_do flag can be folded into the sym_ucmd
(which overrides the scsi_pointer in scsi_cmnd).

The sym_eh_done() function becomes much simpler as the timeout handling
is done in sym_eh_handler() directly.

The host_lock can be unlocked earlier, and I cache the host in
a local variable to make accesses to it quicker.

Signed-off-by: Matthew Wilcox <matthew@wil.cx>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>