If we send a write followed by a discard, it may be possible that the 
discarded data end up being overwritten by the previous write from the 
journal. The code tries to prevent that, but there was a typo in this 
logic that made it not being activated as it should be.

Note that if we end up here the second time (when discard_retried is 
true), it means that the write bio is actually racing with the discard 
bio, and in this situation it is not specified which of them should win.

Cc: [email protected]
Fixes: 31843edab7cb ("dm integrity: improve discard in journal mode")
Signed-off-by: Mikulas Patocka <[email protected]>

---
 drivers/md/dm-integrity.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Index: linux-2.6/drivers/md/dm-integrity.c
===================================================================
--- linux-2.6.orig/drivers/md/dm-integrity.c    2026-01-12 20:46:39.000000000 
+0100
+++ linux-2.6/drivers/md/dm-integrity.c 2026-01-12 20:59:59.000000000 +0100
@@ -2411,7 +2411,7 @@ offload_to_thread:
 
                new_pos = find_journal_node(ic, dio->range.logical_sector, 
&next_sector);
                if (unlikely(new_pos != NOT_FOUND) ||
-                   unlikely(next_sector < dio->range.logical_sector - 
dio->range.n_sectors)) {
+                   unlikely(next_sector < dio->range.logical_sector + 
dio->range.n_sectors)) {
                        remove_range_unlocked(ic, &dio->range);
                        spin_unlock_irq(&ic->endio_wait.lock);
                        queue_work(ic->commit_wq, &ic->commit_work);


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