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-rw-r--r--fs/exofs/ore.c2
-rw-r--r--fs/exofs/ore_raid.c6
2 files changed, 6 insertions, 2 deletions
diff --git a/fs/exofs/ore.c b/fs/exofs/ore.c
index 894f3e1..49cf230 100644
--- a/fs/exofs/ore.c
+++ b/fs/exofs/ore.c
@@ -266,7 +266,7 @@ int ore_get_rw_state(struct ore_layout *layout, struct ore_components *oc,
/* first/last seg is split */
num_raid_units += layout->group_width;
- sgs_per_dev = div_u64(num_raid_units, data_devs);
+ sgs_per_dev = div_u64(num_raid_units, data_devs) + 2;
} else {
/* For Writes add parity pages array. */
max_par_pages = num_raid_units * pages_in_unit *
diff --git a/fs/exofs/ore_raid.c b/fs/exofs/ore_raid.c
index 29c47e5..414a2df 100644
--- a/fs/exofs/ore_raid.c
+++ b/fs/exofs/ore_raid.c
@@ -551,7 +551,11 @@ int _ore_add_parity_unit(struct ore_io_state *ios,
unsigned cur_len)
{
if (ios->reading) {
- BUG_ON(per_dev->cur_sg >= ios->sgs_per_dev);
+ if (per_dev->cur_sg >= ios->sgs_per_dev) {
+ ORE_DBGMSG("cur_sg(%d) >= sgs_per_dev(%d)\n" ,
+ per_dev->cur_sg, ios->sgs_per_dev);
+ return -ENOMEM;
+ }
_ore_add_sg_seg(per_dev, cur_len, true);
} else {
struct __stripe_pages_2d *sp2d = ios->sp2d;
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