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Mon, 14 Oct 2024 06:46:33 -0700 (PDT) From: Patrick Donnelly To: Xiubo Li , Ilya Dryomov Cc: Patrick Donnelly , stable@vger.kernel.org, ceph-devel@vger.kernel.org (open list:CEPH DISTRIBUTED FILE SYSTEM CLIENT (CEPH)), linux-kernel@vger.kernel.org (open list) Subject: [PATCH 2/2] ceph: extract entity name from device id Date: Mon, 14 Oct 2024 09:46:24 -0400 Message-ID: <20241014134625.700634-3-batrick@batbytes.com> X-Mailer: git-send-email 2.47.0 In-Reply-To: <20241014134625.700634-1-batrick@batbytes.com> References: <20241014134625.700634-1-batrick@batbytes.com> Precedence: bulk X-Mailing-List: ceph-devel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Patrick Donnelly Previously, the "name" in the new device syntax "@." was ignored because (presumably) tests were done using mount.ceph which also passed the entity name using "-o name=foo". If mounting is done without the mount.ceph helper, the new device id syntax fails to set the name properly. Cc: stable@vger.kernel.org Resolves: https://tracker.ceph.com/issues/68516 Signed-off-by: Patrick Donnelly --- fs/ceph/super.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/fs/ceph/super.c b/fs/ceph/super.c index 42bdbe5b7ef9..de03cd6eb86e 100644 --- a/fs/ceph/super.c +++ b/fs/ceph/super.c @@ -285,7 +285,9 @@ static int ceph_parse_new_source(const char *dev_name, const char *dev_name_end, size_t len; struct ceph_fsid fsid; struct ceph_parse_opts_ctx *pctx = fc->fs_private; + struct ceph_options *opts = pctx->copts; struct ceph_mount_options *fsopt = pctx->opts; + const char *name_start = dev_name; const char *fsid_start, *fs_name_start; if (*dev_name_end != '=') { @@ -296,8 +298,14 @@ static int ceph_parse_new_source(const char *dev_name, const char *dev_name_end, fsid_start = strchr(dev_name, '@'); if (!fsid_start) return invalfc(fc, "missing cluster fsid"); - ++fsid_start; /* start of cluster fsid */ + len = fsid_start - name_start; + kfree(opts->name); + opts->name = kstrndup(name_start, len, GFP_KERNEL); + if (!opts->name) + return -ENOMEM; + dout("using %s entity name", opts->name); + ++fsid_start; /* start of cluster fsid */ fs_name_start = strchr(fsid_start, '.'); if (!fs_name_start) return invalfc(fc, "missing file system name");