kernel_optimize_test/net/dccp/ccids/lib
Gerrit Renker d63d8364cf [DCCP]: Simplify TFRC calculation
In migrating towards using the newer functions scaled_div/scaled_div32
for TFRC computations mapped from floating-point onto integer arithmetic,
this completes the last stage of modifications.

In particular, the overflow case for computing X_calc is circumvented by
 * breaking the computation into two stages
 * the first stage, res = (s*1E6)/R, cannot overflow due to use of u64
 * in the second stage, res = (res*1E6)/f, overflow on u32 is avoided due
   to (i) returning UINT_MAX in this case (which is logically appropriate)
   and (ii) issuing a warning message into the system log (since very likely
   there is a problem somewhere else with the parameters)

Lastly, all such scaling operations are now exported into tfrc.h, since
actually this form of scaled computation is specific to TFRC and not to CCID3.

Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
Acked-by: Ian McDonald <ian.mcdonald@jandi.co.nz>
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-12-11 14:34:46 -08:00
..
loss_interval.c [PATCH] slab: remove SLAB_ATOMIC 2006-12-07 08:39:24 -08:00
loss_interval.h [PATCH] slab: remove kmem_cache_t 2006-12-07 08:39:25 -08:00
Makefile [DCCP]: Move the calc_X routines to dccp_tfrc_lib 2005-08-29 16:12:47 -07:00
packet_history.c [DCCP]: Fix CCID3 2006-08-26 23:40:50 -07:00
packet_history.h [PATCH] slab: remove kmem_cache_t 2006-12-07 08:39:25 -08:00
tfrc_equation.c [DCCP]: Simplify TFRC calculation 2006-12-11 14:34:46 -08:00
tfrc.h [DCCP]: Simplify TFRC calculation 2006-12-11 14:34:46 -08:00