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[46.135.67.222]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-3e7607e9e6asm889419f8f.62.2025.09.10.21.56.07 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 10 Sep 2025 21:56:09 -0700 (PDT) From: Mateusz Guzik To: brauner@kernel.org Cc: viro@zeniv.linux.org.uk, jack@suse.cz, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, josef@toxicpanda.com, kernel-team@fb.com, amir73il@gmail.com, linux-btrfs@vger.kernel.org, linux-ext4@vger.kernel.org, linux-xfs@vger.kernel.org, ocfs2-devel@lists.linux.dev, Mateusz Guzik Subject: [PATCH v3 1/4] fs: expand dump_inode() Date: Thu, 11 Sep 2025 06:55:54 +0200 Message-ID: <20250911045557.1552002-2-mjguzik@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250911045557.1552002-1-mjguzik@gmail.com> References: <20250911045557.1552002-1-mjguzik@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" This adds fs name and few fields from struct inode: i_mode, i_opflags, i_flags and i_state. All values printed raw, no attempt to pretty-print anything. Compile tested on for i386 and runtime tested on amd64. Sample output: [ 31.450263] VFS_WARN_ON_INODE("crap") encountered for inode ffff9b10837a= 3240 fs sockfs mode 140777 opflags c flags 0 state 100 Signed-off-by: Mateusz Guzik --- fs/inode.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/fs/inode.c b/fs/inode.c index 833de5457a06..e8c712211822 100644 --- a/fs/inode.c +++ b/fs/inode.c @@ -2935,10 +2935,18 @@ EXPORT_SYMBOL(mode_strip_sgid); * * TODO: add a proper inode dumping routine, this is a stub to get debug o= ff the * ground. + * + * TODO: handle getting to fs type with get_kernel_nofault()? + * See dump_mapping() above. */ void dump_inode(struct inode *inode, const char *reason) { - pr_warn("%s encountered for inode %px", reason, inode); + struct super_block *sb =3D inode->i_sb; + + pr_warn("%s encountered for inode %px\n" + "fs %s mode %ho opflags %hx flags %u state %x\n", + reason, inode, sb->s_type->name, inode->i_mode, inode->i_opflags, + inode->i_flags, inode->i_state); } =20 EXPORT_SYMBOL(dump_inode); --=20 2.43.0