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scoutfs: add srch entry inc/dec

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We're going to need to increment and decrement srch entries in coming
fixes.

Signed-off-by: Zach Brown <zab@versity.com>
This commit is contained in:
Zach Brown
2020-12-03 09:58:35 -08:00
committed by Andy Grover
parent 7c5823ad12
commit 9395360324
1 changed files with 22 additions and 0 deletions
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kmod/src/srch.c
+22
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@@ -94,6 +94,28 @@ static int sre_cmp(const struct scoutfs_srch_entry *a,
scoutfs_cmp_u64s(le64_to_cpu(a->id), le64_to_cpu(b->id));
}
static void sre_inc(struct scoutfs_srch_entry *sre)
{
le64_add_cpu(&sre->id, 1);
if (sre->id != 0)
return;
le64_add_cpu(&sre->ino, 1);
if (sre->ino != 0)
return;
le64_add_cpu(&sre->hash, 1);
}
static void sre_dec(struct scoutfs_srch_entry *sre)
{
le64_add_cpu(&sre->id, -1);
if (sre->id != cpu_to_le64(U64_MAX))
return;
le64_add_cpu(&sre->ino, -1);
if (sre->ino != cpu_to_le64(U64_MAX))
return;
le64_add_cpu(&sre->hash, -1);
}
/*
* srch items are first grouped by type and we have log files, sorted
* files, and busy compactions.