zstd · Maintained

Maintainers

• M Nick Terrell <terrelln@fb.com>
• M David Sterba <dsterba@suse.com>

Paths

• F crypto/zstd.c
• F include/linux/zstd*
• F lib/decompress_unzstd.c
• F lib/zstd/

Last 30 days

Active reviewers (last 30 days)

• Rongwei Wang <hidden>
  1 attestation (1 Reviewed-by) · last on 2026-06-27

Recent patches

Most-recent 30 patches in this subsystem on lkml (capped at 30), ordered by date desc.

• COOLING11d REVIEWED: 1 (0M) [PATCH 2/3] zram: add per-backend capability flags and validate parameters early
  2026-06-27 · Haoqin Huang <hidden>
• DORMANTno replies [PATCH] zstd: reducing inlining for KASAN_STACK
  2026-05-26 · Arnd Bergmann <arnd@kernel.org>
• STALE75d [PATCH v2] crypto: zstd - fix segmented acomp streaming paths
  2026-03-20 · Wesley Atwell <hidden>
• STALE119d [PATCH] crypto: zstd - fix segmented acomp streaming paths
  2026-03-09 · Wesley Atwell <hidden>
• DORMANTno replies Re: Linux 6.18.1
  2025-12-12 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• DORMANTno replies Re: Linux 6.17.12
  2025-12-12 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• STALE185d [PATCH v3] zstd: fixed possible 'rtbTable' underflow in FSE_normalizeCount()
  2025-12-11 · Ilya Krutskih <hidden>
• STALE246d [PATCH] crypto: zstd - Remove unnecessary size_t cast
  2025-11-08 · Thorsten Blum <thorsten.blum@linux.dev>
• STALE246d [PATCH] crypto: zstd - Annotate struct zstd_ctx with __counted_by
  2025-11-08 · Thorsten Blum <thorsten.blum@linux.dev>
• DORMANTno replies Re: Linux 5.10.246
  2025-10-29 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• DORMANTno replies Re: Linux 5.15.195
  2025-10-19 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• STALE272d [PATCH v2 16/27 5.10.y] minmax: make generic MIN() and MAX() macros available everywhere
  2025-10-17 · Eliav Farber <hidden>
• DORMANTno replies Re: Linux 6.17.2
  2025-10-12 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• STALE274d [PATCH v3 08/19 5.15.y] minmax: make generic MIN() and MAX() macros available everywhere
  2025-10-08 · Eliav Farber <hidden>
• STALE283d [PATCH v2 08/19 5.15.y] minmax: make generic MIN() and MAX() macros available everywhere
  2025-10-03 · Eliav Farber <hidden>
• STALE288d [PATCH 06/19 5.15.y] minmax: make generic MIN() and MAX() macros available everywhere
  2025-10-02 · Eliav Farber <hidden>
• STALE290d [PATCH] crypto: zstd - Fix compression bug caused by truncation
  2025-09-30 · Herbert Xu <herbert@gondor.apana.org.au>
• STALE299d [PATCH 16/27 5.10.y] lib: zstd: drop local MIN/MAX macros in favor of generic ones
  2025-09-19 · Eliav Farber <hidden>
• DORMANTno replies [PATCH] lib: zstd: Remove redundant semicolons
  2025-08-13 · Liao Yuanhong <hidden>
• STALE365d [PATCH] crypto: acomp - Fix CFI failure due to type punning
  2025-07-09 · Eric Biggers <ebiggers@kernel.org>
• STALE373d [PATCH] crypto: zstd - replace zero-length array with flexible array member
  2025-07-03 · Thorsten Blum <thorsten.blum@linux.dev>
• DORMANTno replies Re: Linux 6.6.88
  2025-04-25 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• DORMANTno replies Re: Linux 6.13.12
  2025-04-20 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• DORMANTno replies Re: Linux 6.14.3
  2025-04-20 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• DORMANTno replies Re: Linux 6.12.24
  2025-04-20 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• DORMANTno replies [PATCH] zstd: Work around gcc segfault on versions older than 11.4
  2025-03-23 · Nick Terrell <hidden>
• STALE479d Re: Compile problems w/gcc 9.4.0 in linux-next
  2025-03-21 · Ingo Molnar <mingo@kernel.org>
• STALE479d Re: Compile problems w/gcc 9.4.0 in linux-next
  2025-03-21 · Ingo Molnar <mingo@kernel.org>
• STALE485d [PATCH 1/1] zstd: Import upstream v1.5.7
  2025-03-13 · Nick Terrell <hidden>
• DORMANTno replies [PATCH] zstd: use NULL instead of 0 for NULL pointer
  2024-09-09 · Min-Hua Chen <hidden>

Needs attention (review trailers in, no pickup)

Patches with review trailers that haven't landed in mainline and haven't been Acked by a maintainer. Oldest first.

• COOLING11d REVIEWED: 1 (0M) [PATCH 2/3] zram: add per-backend capability flags and validate parameters early
  2026-06-27 · Haoqin Huang <hidden> · 1 Reviewed-by

Quiet for 30+ days

Patches with no review trailers and no replies. Either the author is heads-down elsewhere or these slipped through. Oldest first.

• DORMANTno replies [PATCH] zstd: reducing inlining for KASAN_STACK
  2026-05-26 · Arnd Bergmann <arnd@kernel.org>