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| author | Martin Brandenburg <martin@omnibond.com> | 2016-09-28 20:47:29 +0200 |
|---|---|---|
| committer | Martin Brandenburg <martin@omnibond.com> | 2016-09-28 20:47:29 +0200 |
| commit | f808e138c0abd99bfce90ec8d4ef6406c2af714a (patch) | |
| tree | be66f4beb9de1b2fecbf1e59950fe714184c8ecb /fs/orangefs/orangefs-sysfs.c | |
| parent | Merge tag 'for-hubcap-v4.9-readahead' of git://github.com/martinbrandenburg/l... (diff) | |
| parent | orangefs: bump minimum userspace version (diff) | |
| download | linux-f808e138c0abd99bfce90ec8d4ef6406c2af714a.tar.xz linux-f808e138c0abd99bfce90ec8d4ef6406c2af714a.zip | |
Merge branch 'features' into for-next
Pull in an OrangeFS branch containing improvements which the userspace
component and the kernel to negotiate mutually supported features.
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 2fe9a3a2117b..ed5ee33d0f7e 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) { |