[PATCH] pktcdvd: Don't waste kernel memory

Allocate memory for read-gathering at open time, when it is known just how
much memory is needed.  This avoids wasting kernel memory when the real packet
size is smaller than the maximum packet size supported by the driver.  This is
always the case when using DVD discs.

Signed-off-by: Peter Osterlund <petero2@telia.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/block/Kconfig b/drivers/block/Kconfig
index db6818fdf15d..8b1331677407 100644
--- a/drivers/block/Kconfig
+++ b/drivers/block/Kconfig
@@ -433,8 +433,8 @@ config CDROM_PKTCDVD_BUFFERS
           This controls the maximum number of active concurrent packets. More
           concurrent packets can increase write performance, but also require
           more memory. Each concurrent packet will require approximately 64Kb
-          of non-swappable kernel memory, memory which will be allocated at
-          pktsetup time.
+          of non-swappable kernel memory, memory which will be allocated when
+          a disc is opened for writing.
 
 config CDROM_PKTCDVD_WCACHE
         bool "Enable write caching (EXPERIMENTAL)"