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[34.86.47.53]) by smtp.gmail.com with ESMTPSA id 71dfb90a1353d-552ea335f07sm2446030e0c.15.2025.10.06.20.31.13 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 06 Oct 2025 20:31:14 -0700 (PDT) From: Pasha Tatashin To: akpm@linux-foundation.org, brauner@kernel.org, corbet@lwn.net, graf@amazon.com, jgg@ziepe.ca, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-mm@kvack.org, masahiroy@kernel.org, ojeda@kernel.org, pasha.tatashin@soleen.com, pratyush@kernel.org, rdunlap@infradead.org, rppt@kernel.org, tj@kernel.org Subject: [PATCH v5 7/7] kho: move kho debugfs directory to liveupdate Date: Tue, 7 Oct 2025 03:31:00 +0000 Message-ID: <20251007033100.836886-8-pasha.tatashin@soleen.com> X-Mailer: git-send-email 2.51.0.618.g983fd99d29-goog In-Reply-To: <20251007033100.836886-1-pasha.tatashin@soleen.com> References: <20251007033100.836886-1-pasha.tatashin@soleen.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspamd-Server: rspam01 X-Stat-Signature: rfk89eziwah66wctjuybioj1xin1pgn6 X-Rspam-User: X-Rspamd-Queue-Id: 0639A14000D X-HE-Tag: 1759807875-843361 X-HE-Meta: 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 dB+ANOmm ENtgDmlq3YZZbdHmDrgbgFMDfTK0jj4mtVZPk/XDTPweF9tMG+FmwpSaGZffQLtNYSL0h6PW0VheoVEpqRUgTS1TtIGrW8B6zQrfmwrH4G9JddzZzGgpL3o5PBQFBK9UwcVkoWRxxODY8ldB9F09z/tcolpHN55eemKwSB3hPsa+b+wn/LsCzsrP1aCerEbSZbUkBQGIlNbkkkqxWqb4lHqHNjFvQpNeLLM1ISuxBSoi6BZsykf0Wd6HURifZuo4hEoHJvuA2tkgYoT68mF4o6AVPuJqfiYFPMKowOGqYWTw2IRijLwUuXaIYeaegXHN0QP8TYxuCKrKteMM= 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 future LUO selftests could use it as well. Signed-off-by: Pasha Tatashin --- kernel/liveupdate/kexec_handover_debug.c | 10 +++++----- kernel/liveupdate/kexec_handover_internal.h | 2 ++ tools/testing/selftests/kho/init.c | 2 +- 3 files changed, 8 insertions(+), 6 deletions(-) diff --git a/kernel/liveupdate/kexec_handover_debug.c b/kernel/liveupdate/kexec_handover_debug.c index d4ac78d53a39..eb47f000887d 100644 --- a/kernel/liveupdate/kexec_handover_debug.c +++ b/kernel/liveupdate/kexec_handover_debug.c @@ -15,7 +15,7 @@ #include #include "kexec_handover_internal.h" -static struct dentry *debugfs_root; +struct dentry *liveupdate_debugfs_root; struct fdt_debugfs { struct list_head list; @@ -115,7 +115,7 @@ __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("kho_in", liveupdate_debugfs_root); if (IS_ERR(dir)) { err = PTR_ERR(dir); goto err_out; @@ -175,7 +175,7 @@ __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("kho_out", liveupdate_debugfs_root); if (IS_ERR(dir)) return -ENOMEM; @@ -209,8 +209,8 @@ __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/kexec_handover_internal.h b/kernel/liveupdate/kexec_handover_internal.h index de90a678274d..b3fc1957affa 100644 --- a/kernel/liveupdate/kexec_handover_internal.h +++ b/kernel/liveupdate/kexec_handover_internal.h @@ -15,6 +15,8 @@ struct kho_debugfs { struct list_head fdt_list; }; +extern struct dentry *liveupdate_debugfs_root; + #else struct kho_debugfs {}; #endif diff --git a/tools/testing/selftests/kho/init.c b/tools/testing/selftests/kho/init.c index 6d9e91d55d68..f0136a30ce8b 100644 --- a/tools/testing/selftests/kho/init.c +++ b/tools/testing/selftests/kho/init.c @@ -11,7 +11,7 @@ /* from arch/x86/include/asm/setup.h */ #define COMMAND_LINE_SIZE 2048 -#define KHO_FINALIZE "/debugfs/kho/out/finalize" +#define KHO_FINALIZE "/debugfs/liveupdate/kho_out/finalize" #define KERNEL_IMAGE "/kernel" static int mount_filesystems(void) -- 2.51.0.618.g983fd99d29-goog