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zstd: don't call zstd_mempool_reap if there are no buffers #16302

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Jul 15, 2024
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7 changes: 7 additions & 0 deletions module/zstd/zfs_zstd.c
Original file line number Diff line number Diff line change
Expand Up @@ -844,6 +844,13 @@ zstd_mempool_deinit(void)
void
zfs_zstd_cache_reap_now(void)
{

/*
* Short-circuit if there are no buffers to begin with.
*/
if (ZSTDSTAT(zstd_stat_buffers) == 0)
return;

/*
* calling alloc with zero size seeks
* and releases old unused objects
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