Commit 11bbb26e authored by paul luse's avatar paul luse Committed by Darek Stojaczyk
Browse files

lib/reduce: use helper function to get correct length of logical map 



When setting the offset into pmem for the chunk mamps, the wrong
value was used for the length of the logical map resulting in
map corruption after extended fio run.

Fixes issue #813

Signed-off-by: default avatarpaul luse <paul.e.luse@intel.com>
Change-Id: Icb51cf8f38a04f05f69595ebd510ced7f1b608f3
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/457818


Tested-by: default avatarSPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: default avatarDarek Stojaczyk <dariusz.stojaczyk@intel.com>
Reviewed-by: default avatarShuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
parent d571336b

lib/reduce/reduce.c

+4 −1
Original line number Diff line number Diff line
@@ -291,6 +291,8 @@ spdk_reduce_vol_get_uuid(struct spdk_reduce_vol *vol) 
static void

_initialize_vol_pm_pointers(struct spdk_reduce_vol *vol)

{

	uint64_t logical_map_size;



	/* Superblock is at the beginning of the pm file. */

	vol->pm_super = (struct spdk_reduce_vol_superblock *)vol->pm_file.pm_buf;
@@ -298,7 +300,8 @@ _initialize_vol_pm_pointers(struct spdk_reduce_vol *vol) 
	vol->pm_logical_map = (uint64_t *)(vol->pm_super + 1);



	/* Chunks maps follow the logical map. */

	vol->pm_chunk_maps = vol->pm_logical_map + (vol->params.vol_size / vol->params.chunk_size);

	logical_map_size = _get_pm_logical_map_size(vol->params.vol_size, vol->params.chunk_size);

	vol->pm_chunk_maps = (uint64_t *)((uint8_t *)vol->pm_logical_map + logical_map_size);

}



/* We need 2 iovs during load - one for the superblock, another for the path */