diff options
Diffstat (limited to 'fs/orangefs/orangefs-sysfs.c')
| -rw-r--r-- | fs/orangefs/orangefs-sysfs.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/fs/orangefs/orangefs-sysfs.c b/fs/orangefs/orangefs-sysfs.c index 2fe9a3a..ed5ee33 100644 --- a/fs/orangefs/orangefs-sysfs.c +++ b/fs/orangefs/orangefs-sysfs.c @@ -842,6 +842,16 @@ static int sysfs_service_op_show(char *kobj_id, char *buf, void *attr) if (!strcmp(kobj_id, ORANGEFS_KOBJ_ID)) { orangefs_attr = (struct orangefs_attribute *)attr; + /* Drop unsupported requests first. */ + if (!(orangefs_features & ORANGEFS_FEATURE_READAHEAD) && + (!strcmp(orangefs_attr->attr.name, "readahead_count") || + !strcmp(orangefs_attr->attr.name, "readahead_size") || + !strcmp(orangefs_attr->attr.name, + "readahead_count_size"))) { + rc = -EINVAL; + goto out; + } + if (!strcmp(orangefs_attr->attr.name, "perf_history_size")) new_op->upcall.req.param.op = ORANGEFS_PARAM_REQUEST_OP_PERF_HISTORY_SIZE; @@ -1133,6 +1143,15 @@ static int sysfs_service_op_store(char *kobj_id, const char *buf, void *attr) if (!strcmp(kobj_id, ORANGEFS_KOBJ_ID)) { orangefs_attr = (struct orangefs_attribute *)attr; + /* Drop unsupported requests first. */ + if (!(orangefs_features & ORANGEFS_FEATURE_READAHEAD) && + (!strcmp(orangefs_attr->attr.name, "readahead_count") || + !strcmp(orangefs_attr->attr.name, "readahead_size") || + !strcmp(orangefs_attr->attr.name, + "readahead_count_size"))) { + rc = -EINVAL; + goto out; + } if (!strcmp(orangefs_attr->attr.name, "perf_history_size")) { if (val > 0) { |
