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[PATCH] Improve CD/DVD packet driver write performance

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This patch improves write performance for the CD/DVD packet writing driver.
 The logic for switching between reading and writing has been changed so
that streaming writes are no longer interrupted by read requests.

Signed-off-by: Peter Osterlund <petero2@telia.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Peter Osterlund 2005-06-23 00:10:02 -07:00 • committed by Linus Torvalds
parent dfb388bf8a
commit 46c271bedd
2 changed files with 21 additions and 17 deletions
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2
include/linux/pktcdvd.h
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@ -159,7 +159,7 @@ struct packet_iosched
struct bio *read_queue_tail;
struct bio *write_queue;
struct bio *write_queue_tail;
int high_prio_read; /* An important read request has been queued */
sector_t last_write; /* The sector where the last write ended */
int successive_reads;
};