On 22:53, Wei Yongquan wrote: > >> the code linear.c : > >> > >> 158 min_spacing = conf->array_sectors / 2; > >> 159 sector_div(min_spacing, PAGE_SIZE/sizeof(struct dev_info *)); > >> > >> if the array size is less then 1024K and the system is 32 based, > >> min_spacing will be ZERO. > > > > nope, array_sectors in in 512 byte units. So the array size has to s/in in/ is in > > be smaller than 1024 _bytes_ for min_spacing to become zero. > Thanks. > er, "array_sectors in in 512 byte units" means when array_sectors = > 2048, the array size is actually 2048 * 512 = 1024K. Is that right? Exactly. > when min_spacing < 1024 at line 158, it becomes zero at line 159. is that right? Yes, that's true, provided that PAGE_SIZE is 4096 and sizeof(struct dev_info *) is 4. Andre -- The only person who always got his work done by Friday was Robinson Crusoe
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