Lines Matching refs:ra
65 size_t ra; member
165 bc->ra = BCACHE_READAHEAD; /* optimistic read ahead */ in bcache_allocate()
216 size_t i, nblk, p_size, r_size, complete, ra; in read_strategy() local
253 if (bc->ra < BCACHE_READAHEAD) in read_strategy()
254 bc->ra <<= 1; /* increase read ahead */ in read_strategy()
257 bc->ra > BCACHE_MINREADAHEAD) in read_strategy()
258 bc->ra >>= 1; /* reduce read ahead */ in read_strategy()
310 ra = 0; in read_strategy()
312 ra = bc->bcache_nblks - BHASH(bc, p_blk + p_size); in read_strategy()
318 if ((bc->bcache_nextblkno != blk) && ra != 0) { in read_strategy()
319 ra = 0; in read_strategy()
322 if (ra != 0 && ra != bc->bcache_nblks) { /* do we have RA space? */ in read_strategy()
323 ra = MIN(bc->ra, ra - 1); in read_strategy()
324 ra = rounddown(ra, 16); /* multiple of 16 blocks */ in read_strategy()
325 if (ra + p_size > BCACHE_MAXIOWRA) in read_strategy()
326 ra = BCACHE_MAXIOWRA - p_size; in read_strategy()
327 bc->ralen = ra; in read_strategy()
328 p_size += ra; in read_strategy()
360 bcache_rablks += ra; in read_strategy()