L2P table can be huge in many cases, since it typically requires 1GB of DRAM for 1TB of drive. When there is not enough memory available, OOM killer turns on and kills random processes, which can be very annoying for users. This patch changes the flag for L2P table allocation on order to handle this situation in more user friendly way
Signed-off-by: Igor Konopko <[email protected]> --- drivers/lightnvm/pblk-init.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/drivers/lightnvm/pblk-init.c b/drivers/lightnvm/pblk-init.c index 8b643d0bffae..e553105b7ba1 100644 --- a/drivers/lightnvm/pblk-init.c +++ b/drivers/lightnvm/pblk-init.c @@ -164,9 +164,14 @@ static int pblk_l2p_init(struct pblk *pblk, bool factory_init) int ret = 0; map_size = pblk_trans_map_size(pblk); - pblk->trans_map = vmalloc(map_size); - if (!pblk->trans_map) + pblk->trans_map = __vmalloc(map_size, GFP_KERNEL | __GFP_NOWARN + | __GFP_RETRY_MAYFAIL | __GFP_HIGHMEM, + PAGE_KERNEL); + if (!pblk->trans_map) { + pblk_err(pblk, "failed to allocate L2P (need %ld of memory)\n", + map_size); return -ENOMEM; + } pblk_ppa_set_empty(&ppa); -- 2.17.1
