From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B6311156C76 for ; Tue, 4 Mar 2025 00:38:45 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741048725; cv=none; b=oxxRL75McdG8BJu+AaG4r0PBkwYzBcJb5+OjyQ2QNW3DMcWMVrhMdz2xD9liyTdmwzqvE/+IdhDWJ1jwU22vHikjkH2cmY2IodVZtC3giUMjEdU/e58QmQdVYiGX7r2Gn9REbP/7xbswABFR2tXDGjNKGvPnwnX1/SB91fRv/AM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741048725; c=relaxed/simple; bh=EfFusaebeVcRm0Q2jxKdl2aUNknu6CrsHJNDsIkgXHU=; h=Date:To:From:Subject:Message-Id; b=smVo8UUvyL/rmmFMzR50qtLOeWM7jV6W9uO3VzDu+sIFrryFho9LHqaWWxr/x3Q7kqC0mnu0FsrG90IrTOyu2wx0JlVX9FLMp1k7GP9EjoJFrobdZlBKIxBsl2fkntxcud1gpaZkuW3XQrZtdLaES4p1zfBGcJTdE3IbUtHLmFw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b=rCGyY0K5; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b="rCGyY0K5" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 30F2AC4CEE4; Tue, 4 Mar 2025 00:38:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1741048725; bh=EfFusaebeVcRm0Q2jxKdl2aUNknu6CrsHJNDsIkgXHU=; h=Date:To:From:Subject:From; b=rCGyY0K5RN+Dd8l1GHrMjLmlQFr7wfUAbKzCBM747idIYKiLS3hI+M9RkHryHE8my 7QxxcTWSorL9iSs65Ya69/yZJrLJwd6GLOS0bIhVwl/k4sf2TpTo6KbfBSrYfgQoCv pF/ngtQliiWSaroPLfFEHFxdVPm+DI6DEUDfNxRA= Date: Mon, 03 Mar 2025 16:38:44 -0800 To: mm-commits@vger.kernel.org,yosry.ahmed@linux.dev,ryncsn@gmail.com,minchan@kernel.org,hdanton@sina.com,bigeasy@linutronix.de,senozhatsky@chromium.org,akpm@linux-foundation.org From: Andrew Morton Subject: + zram-remove-writestall-zram_stats-member.patch added to mm-unstable branch Message-Id: <20250304003845.30F2AC4CEE4@smtp.kernel.org> Precedence: bulk X-Mailing-List: mm-commits@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: The patch titled Subject: zram: remove writestall zram_stats member has been added to the -mm mm-unstable branch. Its filename is zram-remove-writestall-zram_stats-member.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/zram-remove-writestall-zram_stats-member.patch This patch will later appear in the mm-unstable branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next via the mm-everything branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there every 2-3 working days ------------------------------------------------------ From: Sergey Senozhatsky Subject: zram: remove writestall zram_stats member Date: Mon, 3 Mar 2025 11:03:16 +0900 There is no zsmalloc handle allocation slow path now and writestall is not possible any longer. Remove it from zram_stats. Link: https://lkml.kernel.org/r/20250303022425.285971-8-senozhatsky@chromium.org Signed-off-by: Sergey Senozhatsky Cc: Hillf Danton Cc: Kairui Song Cc: Minchan Kim Cc: Sebastian Andrzej Siewior Cc: Yosry Ahmed Signed-off-by: Andrew Morton --- drivers/block/zram/zram_drv.c | 3 +-- drivers/block/zram/zram_drv.h | 1 - 2 files changed, 1 insertion(+), 3 deletions(-) --- a/drivers/block/zram/zram_drv.c~zram-remove-writestall-zram_stats-member +++ a/drivers/block/zram/zram_drv.c @@ -1437,9 +1437,8 @@ static ssize_t debug_stat_show(struct de down_read(&zram->init_lock); ret = scnprintf(buf, PAGE_SIZE, - "version: %d\n%8llu %8llu\n", + "version: %d\n0 %8llu\n", version, - (u64)atomic64_read(&zram->stats.writestall), (u64)atomic64_read(&zram->stats.miss_free)); up_read(&zram->init_lock); --- a/drivers/block/zram/zram_drv.h~zram-remove-writestall-zram_stats-member +++ a/drivers/block/zram/zram_drv.h @@ -82,7 +82,6 @@ struct zram_stats { atomic64_t huge_pages_since; /* no. of huge pages since zram set up */ atomic64_t pages_stored; /* no. of pages currently stored */ atomic_long_t max_used_pages; /* no. of maximum pages stored */ - atomic64_t writestall; /* no. of write slow paths */ atomic64_t miss_free; /* no. of missed free */ #ifdef CONFIG_ZRAM_WRITEBACK atomic64_t bd_count; /* no. of pages in backing device */ _ Patches currently in -mm which might be from senozhatsky@chromium.org are zram-sleepable-entry-locking.patch zram-permit-preemption-with-active-compression-stream.patch zram-remove-unused-crypto-include.patch zram-remove-max_comp_streams-device-attr.patch zram-remove-second-stage-of-handle-allocation.patch zram-add-gfp_nowarn-to-incompressible-zsmalloc-handle-allocation.patch zram-remove-writestall-zram_stats-member.patch zram-limit-max-recompress-prio-to-num_active_comps.patch zram-filter-out-recomp-targets-based-on-priority.patch zram-rework-recompression-loop.patch zram-move-post-processing-target-allocation.patch zsmalloc-rename-pool-lock.patch zsmalloc-sleepable-zspage-reader-lock.patch zsmalloc-introduce-new-object-mapping-api.patch zram-switch-to-new-zsmalloc-object-mapping-api.patch zram-permit-reclaim-in-zstd-custom-allocator.patch zram-do-not-leak-page-on-recompress_store-error-path.patch zram-do-not-leak-page-on-writeback_store-error-path.patch zram-add-might_sleep-to-zcomp-api.patch