[{"id":3679067,"web_url":"http://patchwork.ozlabs.org/comment/3679067/","msgid":"<9B80A448-B299-4D23-AA2E-AC8643AA474E@dilger.ca>","list_archive_url":null,"date":"2026-04-19T09:19:04","subject":"Re: [PATCH v2 v2 1/2] ext4: add blocks_allocated to mb_stats output","submitter":{"id":4514,"url":"http://patchwork.ozlabs.org/api/people/4514/","name":"Andreas Dilger","email":"adilger@dilger.ca"},"content":"On Apr 19, 2026, at 00:34, Baolin Liu wrote:\n> \n> From: Baolin Liu \n> \n> Add blocks_allocated to /proc/fs/ext4//mb_stats so that the\n> reported statistics match the mballoc summary printed at unmount time.\n> \n> Signed-off-by: Baolin Liu \n\nReviewed-by: Andreas Dilger >\n\n> ---\n> fs/ext4/mballoc.c | 2 ++\n> 1 file changed, 2 insertions(+)\n> \n> diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c\n> index 20e9fdaf4301..1e13ef62cb9d 100644\n> --- a/fs/ext4/mballoc.c\n> +++ b/fs/ext4/mballoc.c\n> @@ -3211,6 +3211,8 @@ int ext4_seq_mb_stats_show(struct seq_file *seq,\n> \t\t\t\"\\tTo enable, please write \\\"1\\\" to sysfs file mb_stats.\\n\");\n> \t\treturn 0;\n> \t}\n> +\tseq_printf(seq, \"\\tblocks_allocated: %u\\n\",\n> +\t\t atomic_read(&sbi->s_bal_allocated));\n> \tseq_printf(seq, \"\\treqs: %u\\n\", atomic_read(&sbi->s_bal_reqs));\n> \tseq_printf(seq, \"\\tsuccess: %u\\n\", atomic_read(&sbi->s_bal_success));\n> \n> -- \n> 2.51.0\n> \n\n\nCheers, Andreas","headers":{"Return-Path":"\n ","X-Original-To":["incoming@patchwork.ozlabs.org","linux-ext4@vger.kernel.org"],"Delivered-To":["patchwork-incoming@legolas.ozlabs.org","patchwork-incoming@ozlabs.org"],"Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=dilger-ca.20251104.gappssmtp.com\n header.i=@dilger-ca.20251104.gappssmtp.com header.a=rsa-sha256\n header.s=20251104 header.b=E18VU4X3;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=ozlabs.org\n (client-ip=2404:9400:2221:ea00::3; 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