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Merge pull request #110 from versity/zab/partial_alloc_move

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Allow partial extent motion
This commit is contained in:
Zach Brown
2023-01-12 09:58:12 -08:00
committed by GitHub
parent 78ae87031b c1bd7bcce5
commit 17cb1fe84b
1 changed files with 10 additions and 0 deletions
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10
kmod/src/alloc.c
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@@ -976,6 +976,16 @@ int scoutfs_alloc_move(struct super_block *sb, struct scoutfs_alloc *alloc,
break;
}
/* return partial if the server alloc can't dirty any more */
if (scoutfs_alloc_meta_low(sb, alloc, 50 + extent_mod_blocks(src->root.height) +
extent_mod_blocks(dst->root.height))) {
if (WARN_ON_ONCE(!moved))
ret = -ENOSPC;
else
ret = 0;
break;
}
/* searching set start/len, finish initializing alloced extent */
ext.map = found.map ? ext.start - found.start + found.map : 0;
ext.flags = found.flags;