31 lines
943 B
Diff
31 lines
943 B
Diff
From ed6aca2c0a58a8b96531f015cf4d629f5208348b Mon Sep 17 00:00:00 2001
|
|
From: "Richard W.M. Jones" <rjones@redhat.com>
|
|
Date: Fri, 3 Apr 2026 14:06:31 +0100
|
|
Subject: [PATCH] cow: Fix block -> fd calculation
|
|
|
|
This calculation was plainly wrong, so the other overlay files were
|
|
never used.
|
|
|
|
Fixes: commit eb79a0e0c63ba1884bde02dc884a26aea2fc4324
|
|
(cherry picked from commit 7180bbf0f3d7b29e7eccf30207980849f3586583)
|
|
---
|
|
filters/cow/blk.c | 2 +-
|
|
1 file changed, 1 insertion(+), 1 deletion(-)
|
|
|
|
diff --git a/filters/cow/blk.c b/filters/cow/blk.c
|
|
index afb48af9..3a416d55 100644
|
|
--- a/filters/cow/blk.c
|
|
+++ b/filters/cow/blk.c
|
|
@@ -324,7 +324,7 @@ blk_set_size (struct blk_overlay *blk, uint64_t new_size)
|
|
static int
|
|
get_fd_for_blknum (struct blk_overlay *blk, uint64_t blknum)
|
|
{
|
|
- size_t i = blknum / MAX_FILE_SIZE / blksize;
|
|
+ size_t i = blknum * blksize / MAX_FILE_SIZE;
|
|
assert (i < blk->fds.len);
|
|
return blk->fds.ptr[i];
|
|
}
|
|
--
|
|
2.47.3
|
|
|