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Tue, 17 Aug 2021 23:01:47 -0700 (PDT) Received: from localhost.localdomain ([49.207.198.118]) by smtp.gmail.com with ESMTPSA id m28sm5865111pgl.9.2021.08.17.23.01.45 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 17 Aug 2021 23:01:47 -0700 (PDT) From: Venky Shankar To: jlayton@redhat.com, pdonnell@redhat.com Cc: ceph-devel@vger.kernel.org, Venky Shankar Subject: [RFC 2/2] ceph: add debugfs entries for v2 (new) mount syntax support Date: Wed, 18 Aug 2021 11:31:34 +0530 Message-Id: <20210818060134.208546-3-vshankar@redhat.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210818060134.208546-1-vshankar@redhat.com> References: <20210818060134.208546-1-vshankar@redhat.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: ceph-devel@vger.kernel.org Signed-off-by: Venky Shankar --- fs/ceph/debugfs.c | 28 ++++++++++++++++++++++++++++ fs/ceph/super.c | 3 +++ fs/ceph/super.h | 2 ++ 3 files changed, 33 insertions(+) diff --git a/fs/ceph/debugfs.c b/fs/ceph/debugfs.c index 66989c880adb..d19f15ace781 100644 --- a/fs/ceph/debugfs.c +++ b/fs/ceph/debugfs.c @@ -22,6 +22,12 @@ #include "mds_client.h" #include "metric.h" +#define MNT_DEV_SUPPORT_DIR "dev_support" +#define MNT_DEV_V2_FILE "v2" + +static struct dentry *ceph_mnt_dev_support_dir; +static struct dentry *ceph_mnt_dev_v2_file; + static int mdsmap_show(struct seq_file *s, void *p) { int i; @@ -416,6 +422,20 @@ void ceph_fs_debugfs_init(struct ceph_fs_client *fsc) &status_fops); } +void ceph_fs_debugfs_mnt_dev_init(void) +{ + ceph_mnt_dev_support_dir = ceph_debugfs_create_subdir(MNT_DEV_SUPPORT_DIR); + ceph_mnt_dev_v2_file = debugfs_create_file(MNT_DEV_V2_FILE, + 0400, + ceph_mnt_dev_support_dir, + NULL, NULL); +} + +void ceph_fs_debugfs_mnt_dev_cleanup(void) +{ + debugfs_remove(ceph_mnt_dev_v2_file); + ceph_debugfs_cleanup_subdir(ceph_mnt_dev_support_dir); +} #else /* CONFIG_DEBUG_FS */ @@ -427,4 +447,12 @@ void ceph_fs_debugfs_cleanup(struct ceph_fs_client *fsc) { } +void ceph_fs_debugfs_mnt_dev_init(void) +{ +} + +void ceph_fs_debugfs_mnt_dev_cleanup(void) +{ +} + #endif /* CONFIG_DEBUG_FS */ diff --git a/fs/ceph/super.c b/fs/ceph/super.c index 609ffc8c2d78..21e4a8249afd 100644 --- a/fs/ceph/super.c +++ b/fs/ceph/super.c @@ -1404,6 +1404,8 @@ static int __init init_ceph(void) if (ret) goto out_caches; + ceph_fs_debugfs_mnt_dev_init(); + pr_info("loaded (mds proto %d)\n", CEPH_MDSC_PROTOCOL); return 0; @@ -1417,6 +1419,7 @@ static int __init init_ceph(void) static void __exit exit_ceph(void) { dout("exit_ceph\n"); + ceph_fs_debugfs_mnt_dev_cleanup(); unregister_filesystem(&ceph_fs_type); destroy_caches(); } diff --git a/fs/ceph/super.h b/fs/ceph/super.h index 8f71184b7c85..3c63c1adcfaa 100644 --- a/fs/ceph/super.h +++ b/fs/ceph/super.h @@ -1231,6 +1231,8 @@ extern int ceph_locks_to_pagelist(struct ceph_filelock *flocks, /* debugfs.c */ extern void ceph_fs_debugfs_init(struct ceph_fs_client *client); extern void ceph_fs_debugfs_cleanup(struct ceph_fs_client *client); +extern void ceph_fs_debugfs_mnt_dev_init(void); +extern void ceph_fs_debugfs_mnt_dev_cleanup(void); /* quota.c */ static inline bool __ceph_has_any_quota(struct ceph_inode_info *ci)