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Allow punch-offline to punch regions properly.

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The current code here only works if the passed in start block is exactly
the start of an offline extent. On top of that, it only will punch a
single extent, ever, due to the test used after finding an extent.

The reason is that we break the loop if the start isn't exactly the
first block of the extent, even if the last block of the extent is
within the wanted hole.

With this change, it doesn't matter if the start is either part of an
offline extent, or a hole, and, we can punch holes that encompass multiple
extents separated by holes, punching all of them away.

Signed-off-by: Auke Kok <auke.kok@versity.com>
This commit is contained in:
Auke Kok
2025-07-02 16:11:29 -07:00
parent 3848c16a3e
commit 6a1c6e3808
1 changed files with 1 additions and 1 deletions
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2
kmod/src/data.c
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@@ -1560,7 +1560,7 @@ int scoutfs_data_punch_offline(struct inode *inode, u64 iblock, u64 last, u64 da
for (i = 0; i < 32 && (iblock <= last); i++) {
ret = scoutfs_ext_next(sb, &data_ext_ops, &args, iblock, 1, &ext);
if (ret == -ENOENT || ext.start > iblock) {
if (ret == -ENOENT || ext.start > last) {
iblock = last + 1;
ret = 0;
break;