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 5B3F72417C8 for ; Fri, 20 Jun 2025 08:30:14 +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=1750408214; cv=none; b=fPDRCMmFY1ZghzRRPv1gO1Q8n9T+ai/QoMMby0w4CWqPwdNkbtBDhPi2vemx3wVKGRClYh6X0RvKqq9fgchgXyk64ZZ1ZCAf/FbmPokCQoW5aHvy7sRx1Ja/j21G0pbm42KlmhCuIhtbfiL+fJVnqwOq0k9qpZwYYLF0xbQuhGU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750408214; c=relaxed/simple; bh=KvXCLL4GIBxO7ttWP7V6vf2zV8q9okk+qfd0RX05Yvw=; h=Subject:To:Cc:From:Date:Message-ID:MIME-Version:Content-Type; b=sRmO09RaoI2XX/FCq3jAZI3hoefvFF+QTvM91YtANy15C3Kbpz2VCl8c4ToypuddeTDe3boWNgXvXDWsQcMfGTjVQKmQC1H43r8t+xLSlc+MPsh9DvwExSCSFpwiRciM5Vo3SkThq+sEnbajI4/lTPxdAE2kGTEcmeMoLCqSugY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=gDIXz1bm; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="gDIXz1bm" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 797AEC4CEF0; Fri, 20 Jun 2025 08:30:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1750408214; bh=KvXCLL4GIBxO7ttWP7V6vf2zV8q9okk+qfd0RX05Yvw=; h=Subject:To:Cc:From:Date:From; b=gDIXz1bmkxStRv1qqJ5Y/IA2mT5pRe/TPf41t2UDSRqKbptMM5FI8S8cHWsT/GoY0 jpkc8bHLeo97BVVML29dMccMSVBnwSoDEL+He7zwuHN8LIzbJwJwnhO7HWBZK90r7E cE88qq7i2FBSHYxHsHnFFDV4SpChiCHrF6rLEukA= Subject: FAILED: patch "[PATCH] f2fs: don't over-report free space or inodes in statvfs" failed to apply to 5.15-stable tree To: chao@kernel.org Cc: From: Date: Fri, 20 Jun 2025 10:29:52 +0200 Message-ID: <2025062052-clamp-tried-33e9@gregkh> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit The patch below does not apply to the 5.15-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to . To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.15.y git checkout FETCH_HEAD git cherry-pick -x a9201960623287927bf5776de3f70fb2fbde7e02 # git commit -s git send-email --to '' --in-reply-to '2025062052-clamp-tried-33e9@gregkh' --subject-prefix 'PATCH 5.15.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >From a9201960623287927bf5776de3f70fb2fbde7e02 Mon Sep 17 00:00:00 2001 From: Chao Yu Date: Tue, 13 May 2025 19:25:38 +0800 Subject: [PATCH] f2fs: don't over-report free space or inodes in statvfs This fixes an analogus bug that was fixed in modern filesystems: a) xfs in commit 4b8d867ca6e2 ("xfs: don't over-report free space or inodes in statvfs") b) ext4 in commit f87d3af74193 ("ext4: don't over-report free space or inodes in statvfs") where statfs can report misleading / incorrect information where project quota is enabled, and the free space is less than the remaining quota. This commit will resolve a test failure in generic/762 which tests for this bug. generic/762 - output mismatch (see /share/git/fstests/results//generic/762.out.bad) --- tests/generic/762.out 2025-04-15 10:21:53.371067071 +0800 +++ /share/git/fstests/results//generic/762.out.bad 2025-05-13 16:13:37.000000000 +0800 @@ -6,8 +6,10 @@ root blocks2 is in range dir blocks2 is in range root bavail2 is in range -dir bavail2 is in range +dir bavail2 has value of 1539066 +dir bavail2 is NOT in range 304734.87 .. 310891.13 root blocks3 is in range ... (Run 'diff -u /share/git/fstests/tests/generic/762.out /share/git/fstests/results//generic/762.out.bad' to see the entire diff) HINT: You _MAY_ be missing kernel fix: XXXXXXXXXXXXXX xfs: don't over-report free space or inodes in statvfs Cc: stable@kernel.org Fixes: ddc34e328d06 ("f2fs: introduce f2fs_statfs_project") Signed-off-by: Chao Yu Signed-off-by: Jaegeuk Kim diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c index b65d24a39d03..6744b8c65bc8 100644 --- a/fs/f2fs/super.c +++ b/fs/f2fs/super.c @@ -1808,26 +1808,32 @@ static int f2fs_statfs_project(struct super_block *sb, limit = min_not_zero(dquot->dq_dqb.dqb_bsoftlimit, dquot->dq_dqb.dqb_bhardlimit); - if (limit) - limit >>= sb->s_blocksize_bits; + limit >>= sb->s_blocksize_bits; + + if (limit) { + uint64_t remaining = 0; - if (limit && buf->f_blocks > limit) { curblock = (dquot->dq_dqb.dqb_curspace + dquot->dq_dqb.dqb_rsvspace) >> sb->s_blocksize_bits; - buf->f_blocks = limit; - buf->f_bfree = buf->f_bavail = - (buf->f_blocks > curblock) ? - (buf->f_blocks - curblock) : 0; + if (limit > curblock) + remaining = limit - curblock; + + buf->f_blocks = min(buf->f_blocks, limit); + buf->f_bfree = min(buf->f_bfree, remaining); + buf->f_bavail = min(buf->f_bavail, remaining); } limit = min_not_zero(dquot->dq_dqb.dqb_isoftlimit, dquot->dq_dqb.dqb_ihardlimit); - if (limit && buf->f_files > limit) { - buf->f_files = limit; - buf->f_ffree = - (buf->f_files > dquot->dq_dqb.dqb_curinodes) ? - (buf->f_files - dquot->dq_dqb.dqb_curinodes) : 0; + if (limit) { + uint64_t remaining = 0; + + if (limit > dquot->dq_dqb.dqb_curinodes) + remaining = limit - dquot->dq_dqb.dqb_curinodes; + + buf->f_files = min(buf->f_files, limit); + buf->f_ffree = min(buf->f_ffree, remaining); } spin_unlock(&dquot->dq_dqb_lock);