The DM_BUFIO_HASH_BITS is defined as 20, any plan to make it flexible?
Date: Tue Dec 02 2014 - 03:44:09 EST
See drivers/md/dm-bufio.c as below:
51 * Buffer hash
53 #define DM_BUFIO_HASH_BITS 20
54 #define DM_BUFIO_HASH(block) \
55 ((((block) >> DM_BUFIO_HASH_BITS) ^ (block)) & \
56 ((1 << DM_BUFIO_HASH_BITS) - 1))
"drivers/md/dm-bufio.c" 1854L, 45375C
DM_BUFIO_HASH_BITS was defined as 20 and it maybe not fit for some
use case with limited resources. Do we have any plan to make it more
flexible? Like module parameter or something else?
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