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GET /api/patches/2216310/?format=api
{ "id": 2216310, "url": "http://patchwork.ozlabs.org/api/patches/2216310/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-ext4/patch/20260326095354.16340-66-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": "<20260326095354.16340-66-jack@suse.cz>", "list_archive_url": null, "date": "2026-03-26T09:54:18", "name": "[24/42] hugetlbfs: Stop using i_private_data", "commit_ref": null, "pull_url": null, "state": "not-applicable", "archived": false, "hash": "48a0f10972592c0e2ec0bf99c7c590eff559d97a", "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/20260326095354.16340-66-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/2216310/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2216310/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "\n <SRS0=DEq+=B2=vger.kernel.org=linux-ext4+bounces-15414-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=g/uLEo7r;\n\tdkim=pass header.d=suse.cz header.i=@suse.cz header.a=ed25519-sha256\n header.s=susede2_ed25519 header.b=1pa9WfLm;\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=g/uLEo7r;\n\tdkim=neutral header.d=suse.cz header.i=@suse.cz header.a=ed25519-sha256\n header.s=susede2_ed25519 header.b=1pa9WfLm;\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=nRtMeDaKzjnSe50bC9u1YlJqD3vALyRYeKO0i9ViSTQ=;\n\tb=1pa9WfLmFomg1L5oozQ22D1QK+lBooEk1mMezvcCzeBd+FqvWHJk0BeIWAc8GYsqDJyxa/\n\tvSfxw7SImiU1PYAw==", "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=nRtMeDaKzjnSe50bC9u1YlJqD3vALyRYeKO0i9ViSTQ=;\n\tb=g/uLEo7rXGrXHjkOzxqornYwO8D55hnybzSnvHf833t+3wYkpRy9Xo8XKdJahdOSvFwIWD\n\tVXeCcf7JE6FctkRkxZ53+CkZumAI5qtGdkniM/WZKLrjx2csNiHapmKERHPcNyV6svYgZK\n\tYuZYsIW+LgxeZTS7+JqMXWFI9n0278I=", "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=nRtMeDaKzjnSe50bC9u1YlJqD3vALyRYeKO0i9ViSTQ=;\n\tb=1pa9WfLmFomg1L5oozQ22D1QK+lBooEk1mMezvcCzeBd+FqvWHJk0BeIWAc8GYsqDJyxa/\n\tvSfxw7SImiU1PYAw==" ], "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>,\n\tChristoph Hellwig <hch@lst.de>", "Subject": "[PATCH 24/42] hugetlbfs: Stop using i_private_data", "Date": "Thu, 26 Mar 2026 10:54:18 +0100", "Message-ID": "<20260326095354.16340-66-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=3180; i=jack@suse.cz;\n h=from:subject; bh=TBJAp1vgW97AnNsMKdc/36W2ae98JPtniWixMTAK+B0=;\n b=owEBbQGS/pANAwAIAZydqgc/ZEDZAcsmYgBpxQJGM589kUVC1RTs2x8EL+jKz9oU8EvkUQbFu\n rSC+eSRsTWJATMEAAEIAB0WIQSrWdEr1p4yirVVKBycnaoHP2RA2QUCacUCRgAKCRCcnaoHP2RA\n 2WjUCADE/11pgV1euunYPZejUo+EZ2IERerdr6bsaog5c+u38VVLzeV0BYVat0T9gAevVwwCkqM\n 1CqsKuiU9mK1rhYsqnlUI/NuF1zX0AGuGuf2HCnG+VqAE3GzgVDfEISrOpTWIxuIKCaWNwhytTi\n 3LP+HW/e4zs+18qAZnQvCvQdbGS1TxzqOJowuX3nmePKSxNsUnNZ9ty2jzeIWsJ5FuF0tWFoFVc\n 9/vV2Z3SUGFzejWTV1tl9PrTz4Itm4p5gOex4oO0EHOKi/fN25s4s0bsGV1JPYeJ+Jcw3CGD964\n GiXNOqg6RfLB9u0KfhHYVum8ltGUKOwfWHLwbxpn8vvN79Lz", "X-Developer-Key": "i=jack@suse.cz; a=openpgp;\n fpr=93C6099A142276A28BBE35D815BC833443038D8C", "Content-Transfer-Encoding": "8bit", "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\tRBL_SPAMHAUS_BLOCKED_OPENRESOLVER(0.00)[2a07:de40:b281:104:10:150:64:97:from];\n\tFUZZY_RATELIMITED(0.00)[rspamd.com];\n\tMIME_TRACE(0.00)[0:+];\n\tARC_NA(0.00)[];\n\tRCPT_COUNT_TWELVE(0.00)[17];\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_ip_from(RLhafujjw6m7bafrsz8p45s31g),to(RLpnp1psq57oqao6ocwdpbxen9)];\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,lst.de];\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-Action": "no action", "X-Spam-Score": "-1.51", "X-Spam-Level": "", "X-Rspamd-Server": "rspamd1.dmz-prg2.suse.org", "X-Rspamd-Queue-Id": "6953D4D283", "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": "Instead of using i_private_data for resv_map pointer add the pointer\ninto hugetlbfs private part of the inode.\n\nReviewed-by: Christoph Hellwig <hch@lst.de>\nSigned-off-by: Jan Kara <jack@suse.cz>\n---\n fs/hugetlbfs/inode.c | 11 +++--------\n include/linux/hugetlb.h | 1 +\n mm/hugetlb.c | 10 +---------\n 3 files changed, 5 insertions(+), 17 deletions(-)", "diff": "diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c\nindex 3f70c47981de..6ad02493adfd 100644\n--- a/fs/hugetlbfs/inode.c\n+++ b/fs/hugetlbfs/inode.c\n@@ -622,13 +622,7 @@ static void hugetlbfs_evict_inode(struct inode *inode)\n \ttrace_hugetlbfs_evict_inode(inode);\n \tremove_inode_hugepages(inode, 0, LLONG_MAX);\n \n-\t/*\n-\t * Get the resv_map from the address space embedded in the inode.\n-\t * This is the address space which points to any resv_map allocated\n-\t * at inode creation time. If this is a device special inode,\n-\t * i_mapping may not point to the original address space.\n-\t */\n-\tresv_map = (struct resv_map *)(&inode->i_data)->i_private_data;\n+\tresv_map = HUGETLBFS_I(inode)->resv_map;\n \t/* Only regular and link inodes have associated reserve maps */\n \tif (resv_map)\n \t\tresv_map_release(&resv_map->refs);\n@@ -907,6 +901,7 @@ static struct inode *hugetlbfs_get_root(struct super_block *sb,\n \t\tsimple_inode_init_ts(inode);\n \t\tinode->i_op = &hugetlbfs_dir_inode_operations;\n \t\tinode->i_fop = &simple_dir_operations;\n+\t\tHUGETLBFS_I(inode)->resv_map = NULL;\n \t\t/* directory inodes start off with i_nlink == 2 (for \".\" entry) */\n \t\tinc_nlink(inode);\n \t\tlockdep_annotate_inode_mutex_key(inode);\n@@ -950,7 +945,7 @@ static struct inode *hugetlbfs_get_inode(struct super_block *sb,\n \t\t\t\t&hugetlbfs_i_mmap_rwsem_key);\n \t\tinode->i_mapping->a_ops = &hugetlbfs_aops;\n \t\tsimple_inode_init_ts(inode);\n-\t\tinode->i_mapping->i_private_data = resv_map;\n+\t\tinfo->resv_map = resv_map;\n \t\tinfo->seals = F_SEAL_SEAL;\n \t\tswitch (mode & S_IFMT) {\n \t\tdefault:\ndiff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h\nindex 65910437be1c..fc5462fe943f 100644\n--- a/include/linux/hugetlb.h\n+++ b/include/linux/hugetlb.h\n@@ -518,6 +518,7 @@ static inline struct hugetlbfs_sb_info *HUGETLBFS_SB(struct super_block *sb)\n \n struct hugetlbfs_inode_info {\n \tstruct inode vfs_inode;\n+\tstruct resv_map *resv_map;\n \tunsigned int seals;\n };\n \ndiff --git a/mm/hugetlb.c b/mm/hugetlb.c\nindex 327eaa4074d3..2ced2c8633d8 100644\n--- a/mm/hugetlb.c\n+++ b/mm/hugetlb.c\n@@ -1157,15 +1157,7 @@ void resv_map_release(struct kref *ref)\n \n static inline struct resv_map *inode_resv_map(struct inode *inode)\n {\n-\t/*\n-\t * At inode evict time, i_mapping may not point to the original\n-\t * address space within the inode. This original address space\n-\t * contains the pointer to the resv_map. So, always use the\n-\t * address space embedded within the inode.\n-\t * The VERY common case is inode->mapping == &inode->i_data but,\n-\t * this may not be true for device special inodes.\n-\t */\n-\treturn (struct resv_map *)(&inode->i_data)->i_private_data;\n+\treturn HUGETLBFS_I(inode)->resv_map;\n }\n \n static struct resv_map *vma_resv_map(struct vm_area_struct *vma)\n", "prefixes": [ "24/42" ] }