提交 5c55ac9b 编写于 作者: P Phillip Susi 提交者: Linus Torvalds

[PATCH] pktcdvd: Allow larger packets

The pktcdvd driver uses a compile time macro constant to define the maximum
supported packet length.  I changed this from 32 sectors to 128 sectors
because that allows over 100 MB of additional usable space on a 700 MB cdrw,
and increases throughput.

Note that you need a modified cdrwtool program that can format a CDRW disc
with larger packets to benefit from this change.
Signed-off-by: NPeter Osterlund <petero2@telia.com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
上级 e1bc89bc
...@@ -169,7 +169,7 @@ struct packet_iosched ...@@ -169,7 +169,7 @@ struct packet_iosched
#if (PAGE_SIZE % CD_FRAMESIZE) != 0 #if (PAGE_SIZE % CD_FRAMESIZE) != 0
#error "PAGE_SIZE must be a multiple of CD_FRAMESIZE" #error "PAGE_SIZE must be a multiple of CD_FRAMESIZE"
#endif #endif
#define PACKET_MAX_SIZE 32 #define PACKET_MAX_SIZE 128
#define FRAMES_PER_PAGE (PAGE_SIZE / CD_FRAMESIZE) #define FRAMES_PER_PAGE (PAGE_SIZE / CD_FRAMESIZE)
#define PACKET_MAX_SECTORS (PACKET_MAX_SIZE * CD_FRAMESIZE >> 9) #define PACKET_MAX_SECTORS (PACKET_MAX_SIZE * CD_FRAMESIZE >> 9)
......
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