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GET /api/patches/2216318/?format=api
{ "id": 2216318, "url": "http://patchwork.ozlabs.org/api/patches/2216318/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-ext4/patch/20260326095354.16340-61-jack@suse.cz/", "project": { "id": 8, "url": "http://patchwork.ozlabs.org/api/projects/8/?format=api", "name": "Linux ext4 filesystem development", "link_name": "linux-ext4", "list_id": "linux-ext4.vger.kernel.org", "list_email": "linux-ext4@vger.kernel.org", "web_url": null, "scm_url": null, "webscm_url": null, "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20260326095354.16340-61-jack@suse.cz>", "list_archive_url": null, "date": "2026-03-26T09:54:13", "name": "[19/42] ext4: Sync and invalidate metadata buffers from ext4_evict_inode()", "commit_ref": null, "pull_url": null, "state": "not-applicable", "archived": false, "hash": "039ca3c5e7d3e2c9b71d867419c8116ee775ac02", "submitter": { "id": 363, "url": "http://patchwork.ozlabs.org/api/people/363/?format=api", "name": "Jan Kara", "email": "jack@suse.cz" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/linux-ext4/patch/20260326095354.16340-61-jack@suse.cz/mbox/", "series": [ { "id": 497561, "url": "http://patchwork.ozlabs.org/api/series/497561/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-ext4/list/?series=497561", "date": "2026-03-26T09:53:55", "name": "fs: Move metadata bh tracking from address_space", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/497561/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2216318/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2216318/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "\n <SRS0=lRb7=B2=vger.kernel.org=linux-ext4+bounces-15412-patchwork-incoming=ozlabs.org@ozlabs.org>", "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 (1024-bit key;\n unprotected) header.d=suse.cz header.i=@suse.cz header.a=rsa-sha256\n header.s=susede2_rsa header.b=x2I30ShS;\n\tdkim=pass header.d=suse.cz header.i=@suse.cz header.a=ed25519-sha256\n header.s=susede2_ed25519 header.b=/oTi4QXc;\n\tdkim=pass (1024-bit key) header.d=suse.cz header.i=@suse.cz\n header.a=rsa-sha256 header.s=susede2_rsa header.b=x2I30ShS;\n\tdkim=neutral header.d=suse.cz header.i=@suse.cz header.a=ed25519-sha256\n header.s=susede2_ed25519 header.b=/oTi4QXc;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=ozlabs.org\n (client-ip=150.107.74.76; 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a=ed25519-sha256; c=relaxed/relaxed; d=suse.cz;\n\ts=susede2_ed25519; t=1774518901;\n\th=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc:\n\t mime-version:mime-version:\n\t content-transfer-encoding:content-transfer-encoding:\n\t in-reply-to:in-reply-to:references:references;\n\tbh=xVDg+F2e6CtK7j6uBwAUoX9A/+ujgxFslk6X0y4sj2w=;\n\tb=/oTi4QXcjRgOIjz/ARfDkC2JilZkH3fHD0zDYH2y3y2UNK06jXHG4uGuSgmWjmV9SCOp7M\n\t3+40AbSUaqCe7/CA==", "v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.cz;\n s=susede2_rsa;\n\tt=1774518901;\n h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc:\n\t mime-version:mime-version:\n\t content-transfer-encoding:content-transfer-encoding:\n\t in-reply-to:in-reply-to:references:references;\n\tbh=xVDg+F2e6CtK7j6uBwAUoX9A/+ujgxFslk6X0y4sj2w=;\n\tb=x2I30ShSDytLJbrX5Rthxf2Ef1xf7RQB2asBKGwJ3s8Yas38lhWdis4/h0rS9eHtzdf4nF\n\tYSHTHVjG+n6H9RpnjO9a9IWzOeBM2DrLhcu6P8QYV5GHNTIbCWpirJ9KrecZKNrAS53qUB\n\ts7uSRelIt3fQ6xxAzgPTmI62geffsc0=", "v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.cz;\n\ts=susede2_ed25519; t=1774518901;\n\th=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc:\n\t mime-version:mime-version:\n\t content-transfer-encoding:content-transfer-encoding:\n\t in-reply-to:in-reply-to:references:references;\n\tbh=xVDg+F2e6CtK7j6uBwAUoX9A/+ujgxFslk6X0y4sj2w=;\n\tb=/oTi4QXcjRgOIjz/ARfDkC2JilZkH3fHD0zDYH2y3y2UNK06jXHG4uGuSgmWjmV9SCOp7M\n\t3+40AbSUaqCe7/CA==" ], "From": "Jan Kara <jack@suse.cz>", "To": "<linux-fsdevel@vger.kernel.org>", "Cc": "<linux-block@vger.kernel.org>,\n\tChristian Brauner <brauner@kernel.org>,\n\tAl Viro <viro@ZenIV.linux.org.uk>,\n\t<linux-ext4@vger.kernel.org>,\n\tTed Tso <tytso@mit.edu>,\n\t\"Tigran A. Aivazian\" <aivazian.tigran@gmail.com>,\n\tDavid Sterba <dsterba@suse.com>,\n\tOGAWA Hirofumi <hirofumi@mail.parknet.co.jp>,\n\tMuchun Song <muchun.song@linux.dev>,\n\tOscar Salvador <osalvador@suse.de>,\n\tDavid Hildenbrand <david@kernel.org>,\n\tlinux-mm@kvack.org,\n\tlinux-aio@kvack.org,\n\tBenjamin LaHaise <bcrl@kvack.org>,\n\tJan Kara <jack@suse.cz>", "Subject": "[PATCH 19/42] ext4: Sync and invalidate metadata buffers from\n ext4_evict_inode()", "Date": "Thu, 26 Mar 2026 10:54:13 +0100", "Message-ID": "<20260326095354.16340-61-jack@suse.cz>", "X-Mailer": "git-send-email 2.51.0", "In-Reply-To": "<20260326082428.31660-1-jack@suse.cz>", "References": "<20260326082428.31660-1-jack@suse.cz>", "Precedence": "bulk", "X-Mailing-List": "linux-ext4@vger.kernel.org", "List-Id": "<linux-ext4.vger.kernel.org>", "List-Subscribe": "<mailto:linux-ext4+subscribe@vger.kernel.org>", "List-Unsubscribe": "<mailto:linux-ext4+unsubscribe@vger.kernel.org>", "MIME-Version": "1.0", "X-Developer-Signature": "v=1; a=openpgp-sha256; l=1456; i=jack@suse.cz;\n h=from:subject; bh=owc5m+YmFPFX9G7b4L5yVqAn4sHTNVwb7RYuqrd3Kag=;\n b=owEBbQGS/pANAwAIAZydqgc/ZEDZAcsmYgBpxQJC/m40sh9r+/VqeE/EOztc8+Vm8Hwnlm9ew\n gLKiBy9a+aJATMEAAEIAB0WIQSrWdEr1p4yirVVKBycnaoHP2RA2QUCacUCQgAKCRCcnaoHP2RA\n 2WW2B/4lP04dwjwRh8h+wXW0V6DiSHJtT7smkcwZkdsBYBj97DGD7y61i60y7su7lR0Sduf1fSu\n ciGf4LyMDLUmD01BBY7nuRKw28tD7V4jC6z0Cn3nsoAM1p+9jSb0x1HA4BFHypthgMqctUjd8ah\n mXXPs6peVD/dB6nOG0Bq2HECOh2Qi4vbvOp4qTou9apnqsReuTP1qjkDcF8/Y26e5XriGDQ4VOS\n R7iwUP70aga39DSmv67KEmERZfc89rRurre1rYuL+euQTTeJQA2fsbBpRsO9Hx5TwZzf0kCQv2R\n a4lm0ak2rY0bdnlAxFg7DjV1rFgznBWPwjmjHfFmCk4C9u6k", "X-Developer-Key": "i=jack@suse.cz; a=openpgp;\n fpr=93C6099A142276A28BBE35D815BC833443038D8C", "Content-Transfer-Encoding": "8bit", "X-Rspamd-Action": "no action", "X-Rspamd-Server": "rspamd2.dmz-prg2.suse.org", "X-Spamd-Result": "default: False [-1.51 / 50.00];\n\tBAYES_HAM(-3.00)[100.00%];\n\tSUSPICIOUS_RECIPS(1.50)[];\n\tMID_CONTAINS_FROM(1.00)[];\n\tNEURAL_HAM_LONG(-1.00)[-1.000];\n\tR_MISSING_CHARSET(0.50)[];\n\tNEURAL_HAM_SHORT(-0.20)[-1.000];\n\tR_DKIM_ALLOW(-0.20)[suse.cz:s=susede2_rsa,suse.cz:s=susede2_ed25519];\n\tMIME_GOOD(-0.10)[text/plain];\n\tMX_GOOD(-0.01)[];\n\tDBL_BLOCKED_OPENRESOLVER(0.00)[imap1.dmz-prg2.suse.org:helo,imap1.dmz-prg2.suse.org:rdns];\n\tRCVD_COUNT_THREE(0.00)[3];\n\tDKIM_SIGNED(0.00)[suse.cz:s=susede2_rsa,suse.cz:s=susede2_ed25519];\n\tFUZZY_RATELIMITED(0.00)[rspamd.com];\n\tRBL_SPAMHAUS_BLOCKED_OPENRESOLVER(0.00)[2a07:de40:b281:104:10:150:64:97:from];\n\tMIME_TRACE(0.00)[0:+];\n\tARC_NA(0.00)[];\n\tRCPT_COUNT_TWELVE(0.00)[16];\n\tRCVD_TLS_LAST(0.00)[];\n\tTO_MATCH_ENVRCPT_ALL(0.00)[];\n\tFROM_HAS_DN(0.00)[];\n\tRCVD_VIA_SMTP_AUTH(0.00)[];\n\tTAGGED_RCPT(0.00)[];\n\tRECEIVED_SPAMHAUS_BLOCKED_OPENRESOLVER(0.00)[2a07:de40:b281:106:10:150:64:167:received];\n\tSPAMHAUS_XBL(0.00)[2a07:de40:b281:104:10:150:64:97:from];\n\tR_RATELIMIT(0.00)[to(RLpnp1psq57oqao6ocwdpbxen9),to_ip_from(RLhafujjw6m7bafrsz8p45s31g)];\n\tFREEMAIL_CC(0.00)[vger.kernel.org,kernel.org,ZenIV.linux.org.uk,mit.edu,gmail.com,suse.com,mail.parknet.co.jp,linux.dev,suse.de,kvack.org,suse.cz];\n\tDKIM_TRACE(0.00)[suse.cz:+];\n\tFROM_EQ_ENVFROM(0.00)[];\n\tTO_DN_SOME(0.00)[];\n\tFREEMAIL_ENVRCPT(0.00)[gmail.com]", "X-Rspamd-Queue-Id": "55B324D280", "X-Spam-Score": "-1.51", "X-Spam-Level": "", "X-Spam-Status": "No, score=-1.2 required=5.0 tests=ARC_SIGNED,ARC_VALID,\n\tDKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DMARC_MISSING,\n\tHEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,\n\tSPF_PASS autolearn=disabled version=4.0.1", "X-Spam-Checker-Version": "SpamAssassin 4.0.1 (2024-03-25) on gandalf.ozlabs.org" }, "content": "There are only very few filesystems using generic metadata buffer head\ntracking and everybody is paying the overhead. When we remove this\ntracking for inode reclaim code .evict will start to see inodes with\nmetadata buffers attached so write them out and prune them.\n\nAcked-by: Theodore Ts'o <tytso@mit.edu>\nSigned-off-by: Jan Kara <jack@suse.cz>\n---\n fs/ext4/inode.c | 4 +++-\n fs/ext4/super.c | 3 ++-\n 2 files changed, 5 insertions(+), 2 deletions(-)", "diff": "diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c\nindex d18d94acddcc..6f892abef003 100644\n--- a/fs/ext4/inode.c\n+++ b/fs/ext4/inode.c\n@@ -185,7 +185,9 @@ void ext4_evict_inode(struct inode *inode)\n \t\text4_evict_ea_inode(inode);\n \tif (inode->i_nlink) {\n \t\ttruncate_inode_pages_final(&inode->i_data);\n-\n+\t\t/* Avoid mballoc special inode which has no proper iops */\n+\t\tif (!EXT4_SB(inode->i_sb)->s_journal)\n+\t\t\tsync_mapping_buffers(&inode->i_data);\n \t\tgoto no_delete;\n \t}\n \ndiff --git a/fs/ext4/super.c b/fs/ext4/super.c\nindex 43f680c750ae..ea827b0ecc8d 100644\n--- a/fs/ext4/super.c\n+++ b/fs/ext4/super.c\n@@ -1524,7 +1524,8 @@ static void destroy_inodecache(void)\n void ext4_clear_inode(struct inode *inode)\n {\n \text4_fc_del(inode);\n-\tinvalidate_inode_buffers(inode);\n+\tif (!EXT4_SB(inode->i_sb)->s_journal)\n+\t\tinvalidate_inode_buffers(inode);\n \tclear_inode(inode);\n \text4_discard_preallocations(inode);\n \text4_es_remove_extent(inode, 0, EXT_MAX_BLOCKS);\n", "prefixes": [ "19/42" ] }