forked from Minki/linux
3bd9856857
Users like the objlayout-driver would like to only pass a partial device table that covers the IO in question. For example exofs divides the file into raid-group-sized chunks and only serves group_width number of devices at a time. The partiality is communicated by setting ore_componets->first_dev and the array covers all logical devices from oc->first_dev upto (oc->first_dev + oc->numdevs) The ore_comp_dev() API receives a logical device index and returns the actual present device in the table. An out-of-range dev_index will BUG. Logical device index is the theoretical device index as if all the devices of a file are present. .i.e: total_devs = group_width * mirror_p1 * group_count 0 <= dev_index < total_devs Signed-off-by: Boaz Harrosh <bharrosh@panasas.com> |
||
---|---|---|
.. | ||
BUGS | ||
common.h | ||
dir.c | ||
exofs.h | ||
file.c | ||
inode.c | ||
Kbuild | ||
Kconfig | ||
namei.c | ||
ore.c | ||
super.c | ||
symlink.c |