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vfs_ceph_new: refactor error-case in cephmount_mount_fs

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Align code-style of 'cephmount_mount_fs' with rest of the code: use
'goto' for bail-out upon error case (with proper cleanups). For the
common case of successful operation complete execution and return final
value. Added extra debug-logging for good-path case.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15703

Signed-off-by: Shachar Sharon <ssharon@redhat.com>
Reviewed-by: Anoop C S <anoopcs@samba.org>
Reviewed-by: John Mulligan <jmulligan@redhat.com>
This commit is contained in:
Shachar Sharon 2024-09-04 14:55:50 +03:00 committed by Anoop C S
parent e4e3f05cd7
commit d9b872afee
1 changed files with 20 additions and 16 deletions
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32
source3/modules/vfs_ceph_new.c
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@ -266,24 +266,24 @@ static struct ceph_mount_info *cephmount_mount_fs(
(config->conf_file == NULL ? "default path" : config->conf_file));
ret = config->ceph_conf_read_file_fn(mnt, config->conf_file);
if (ret) {
goto err_cm_release;
goto out;
}
DBG_DEBUG("[CEPH] calling: ceph_conf_get\n");
ret = config->ceph_conf_get_fn(mnt, "log file", buf, sizeof(buf));
if (ret < 0) {
goto err_cm_release;
goto out;
}
/* libcephfs disables POSIX ACL support by default, enable it... */
ret = config->ceph_conf_set_fn(mnt, "client_acl_type", "posix_acl");
if (ret < 0) {
goto err_cm_release;
goto out;
}
/* tell libcephfs to perform local permission checks */
ret = config->ceph_conf_set_fn(mnt, "fuse_default_permissions", "false");
if (ret < 0) {
goto err_cm_release;
goto out;
}
/*
* select a cephfs file system to use:
@ -293,26 +293,30 @@ static struct ceph_mount_info *cephmount_mount_fs(
if (config->fsname != NULL) {
ret = config->ceph_select_filesystem_fn(mnt, config->fsname);
if (ret < 0) {
goto err_cm_release;
goto out;
}
}
DBG_DEBUG("[CEPH] calling: ceph_mount\n");
ret = config->ceph_mount_fn(mnt, NULL);
if (ret >= 0) {
goto cm_done;
if (ret < 0) {
goto out;
}
ret = 0;
err_cm_release:
out:
if (ret != 0) {
config->ceph_release_fn(mnt);
mnt = NULL;
DBG_DEBUG("[CEPH] Error mounting fs: %s\n", strerror(-ret));
cm_done:
/*
* Handle the error correctly. Ceph returns -errno.
*/
if (ret) {
DBG_ERR("[CEPH] mount failed: user_id='%s' fsname='%s' %s",
(config->user_id != NULL) ? config->user_id : "",
(config->fsname != NULL) ? config->fsname : "",
strerror(-ret));
errno = -ret;
} else {
DBG_DEBUG("[CEPH] mount done: user_id='%s' fsname='%s'",
(config->user_id != NULL) ? config->user_id : "",
(config->fsname != NULL) ? config->fsname : "");
}
return mnt;
}