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libata: switch to using block layer tagging support

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libata currently has a pretty dumb ATA_MAX_QUEUE loop for finding
a free tag to use. Instead of fixing that up, convert libata to
using block layer tagging - gets rid of code in libata, and is also
much faster.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Jens Axboe
2008-10-22 09:34:49 +02:00
committed by Linus Torvalds
parent 332edc2f7f
commit 2fca5ccf97
4 changed files with 31 additions and 65 deletions
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include/linux/libata.h
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@@ -695,7 +695,6 @@ struct ata_port {
unsigned int cbl; /* cable type; ATA_CBL_xxx */
struct ata_queued_cmd qcmd[ATA_MAX_QUEUE];
unsigned long qc_allocated;
unsigned int qc_active;
int nr_active_links; /* #links with active qcs */