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