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[34.86.47.53]) by smtp.gmail.com with ESMTPSA id d75a77b69052e-4db0c0fbe63sm64561521cf.23.2025.09.28.18.04.35 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 28 Sep 2025 18:04:35 -0700 (PDT) From: Pasha Tatashin To: pratyush@kernel.org, jasonmiu@google.com, graf@amazon.com, changyuanl@google.com, pasha.tatashin@soleen.com, rppt@kernel.org, dmatlack@google.com, rientjes@google.com, corbet@lwn.net, rdunlap@infradead.org, ilpo.jarvinen@linux.intel.com, kanie@linux.alibaba.com, ojeda@kernel.org, aliceryhl@google.com, masahiroy@kernel.org, akpm@linux-foundation.org, tj@kernel.org, yoann.congal@smile.fr, mmaurer@google.com, roman.gushchin@linux.dev, chenridong@huawei.com, axboe@kernel.dk, mark.rutland@arm.com, jannh@google.com, vincent.guittot@linaro.org, hannes@cmpxchg.org, dan.j.williams@intel.com, david@redhat.com, joel.granados@kernel.org, rostedt@goodmis.org, anna.schumaker@oracle.com, song@kernel.org, zhangguopeng@kylinos.cn, linux@weissschuh.net, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, linux-mm@kvack.org, gregkh@linuxfoundation.org, tglx@linutronix.de, mingo@redhat.com, bp@alien8.de, dave.hansen@linux.intel.com, x86@kernel.org, hpa@zytor.com, rafael@kernel.org, dakr@kernel.org, bartosz.golaszewski@linaro.org, cw00.choi@samsung.com, myungjoo.ham@samsung.com, yesanishhere@gmail.com, Jonathan.Cameron@huawei.com, quic_zijuhu@quicinc.com, aleksander.lobakin@intel.com, ira.weiny@intel.com, andriy.shevchenko@linux.intel.com, leon@kernel.org, lukas@wunner.de, bhelgaas@google.com, wagi@kernel.org, djeffery@redhat.com, stuart.w.hayes@gmail.com, ptyadav@amazon.de, lennart@poettering.net, brauner@kernel.org, linux-api@vger.kernel.org, linux-fsdevel@vger.kernel.org, saeedm@nvidia.com, ajayachandra@nvidia.com, jgg@nvidia.com, parav@nvidia.com, leonro@nvidia.com, witu@nvidia.com, hughd@google.com, skhawaja@google.com, chrisl@kernel.org, steven.sistare@oracle.com Subject: [PATCH v4 16/30] kho: move kho debugfs directory to liveupdate Date: Mon, 29 Sep 2025 01:03:07 +0000 Message-ID: <20250929010321.3462457-17-pasha.tatashin@soleen.com> X-Mailer: git-send-email 2.51.0.536.g15c5d4f767-goog In-Reply-To: <20250929010321.3462457-1-pasha.tatashin@soleen.com> References: <20250929010321.3462457-1-pasha.tatashin@soleen.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspamd-Queue-Id: 520C020002 X-Rspam-User: X-Rspamd-Server: rspam07 X-Stat-Signature: az8rx7ko5hh3zqx3j59k43cr4ya9zqus X-HE-Tag: 1759107877-219287 X-HE-Meta: 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 d+bzb3Qk RubgZ1HUmxM1xXj44uAI5mkaJbx+1KqFXo7nqSC+/sIuRA2czBHxnUMhfgtDmL4MQdsUrwvRMHEGOAuC4uTwj2A+ASTAtEzsasjWmLZGhrC5mVmgcz2/eh/YUsbn6kCg/LdQLN6ddm6i8Yg52byL0yBLFp/PDC3xHMI5NrkcySz75p6wmBZVHRsrSUHIJWqnOOhp2KmqRG7qh/pw2PKRA6hrIEohXhMA43yExyE7Q5BptwMgw/EhT4CdDQmza3AcUcIWC0KNrBQwAabpsULBPNW7YA7ZxYExLA5Uyn0tWbZuhbiUpdZ8UbSgCFvY2RTWCQSJD7+3Y9ZG5BtbeAAXn/yAraBc4opx36tgij9Pi8VEdkZLy00QgkGVNyqo88fdoqqBzemLzX8xq5yshCRa0RIJ4vg== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Now, that LUO and KHO both live under kernel/liveupdate, it makes sense to also move the kho debugfs files to liveupdate/ The old names: /sys/kernel/debug/kho/out/ /sys/kernel/debug/kho/in/ The new names: /sys/kernel/debug/liveupdate/kho_out/ /sys/kernel/debug/liveupdate/kho_in/ Also, export the liveupdate_debufs_root, so LUO selftests could use it as well. Signed-off-by: Pasha Tatashin --- kernel/liveupdate/kexec_handover_debug.c | 11 ++++++----- kernel/liveupdate/luo_internal.h | 4 ++++ 2 files changed, 10 insertions(+), 5 deletions(-) diff --git a/kernel/liveupdate/kexec_handover_debug.c b/kernel/liveupdate/kexec_handover_debug.c index af4bad225630..f06d6cdfeab3 100644 --- a/kernel/liveupdate/kexec_handover_debug.c +++ b/kernel/liveupdate/kexec_handover_debug.c @@ -14,8 +14,9 @@ #include #include #include "kexec_handover_internal.h" +#include "luo_internal.h" -static struct dentry *debugfs_root; +struct dentry *liveupdate_debugfs_root; struct fdt_debugfs { struct list_head list; @@ -120,7 +121,7 @@ __init void kho_in_debugfs_init(struct kho_debugfs *dbg, const void *fdt) INIT_LIST_HEAD(&dbg->fdt_list); - dir = debugfs_create_dir("in", debugfs_root); + dir = debugfs_create_dir("in", liveupdate_debugfs_root); if (IS_ERR(dir)) { err = PTR_ERR(dir); goto err_out; @@ -180,7 +181,7 @@ __init int kho_out_debugfs_init(struct kho_debugfs *dbg) INIT_LIST_HEAD(&dbg->fdt_list); - dir = debugfs_create_dir("out", debugfs_root); + dir = debugfs_create_dir("out", liveupdate_debugfs_root); if (IS_ERR(dir)) return -ENOMEM; @@ -214,8 +215,8 @@ __init int kho_out_debugfs_init(struct kho_debugfs *dbg) __init int kho_debugfs_init(void) { - debugfs_root = debugfs_create_dir("kho", NULL); - if (IS_ERR(debugfs_root)) + liveupdate_debugfs_root = debugfs_create_dir("liveupdate", NULL); + if (IS_ERR(liveupdate_debugfs_root)) return -ENOENT; return 0; } diff --git a/kernel/liveupdate/luo_internal.h b/kernel/liveupdate/luo_internal.h index c9bce82aac22..083b80754c9e 100644 --- a/kernel/liveupdate/luo_internal.h +++ b/kernel/liveupdate/luo_internal.h @@ -107,4 +107,8 @@ void luo_file_finish(struct luo_session *session); void luo_file_cancel(struct luo_session *session); void luo_file_deserialize(struct luo_session *session); +#ifdef CONFIG_KEXEC_HANDOVER_DEBUG +extern struct dentry *liveupdate_debugfs_root; +#endif + #endif /* _LINUX_LUO_INTERNAL_H */ -- 2.51.0.536.g15c5d4f767-goog