diff options
| author | Martin Brandenburg <martin@omnibond.com> | 2016-08-12 12:02:31 -0400 |
|---|---|---|
| committer | Martin Brandenburg <martin@omnibond.com> | 2016-08-12 15:12:54 -0400 |
| commit | 482664ddba81b3a5404fd083bb9697dfffc0b6a4 (patch) | |
| tree | f4dd0268a8cf58fd898f73dd7b26a0a9ef5d2eff /fs/orangefs/devorangefs-req.c | |
| parent | f2ee3b759593c184f1249e03d613a84b4b69db2b (diff) | |
orangefs: add features op
This is a new userspace operation, which will be done if the client-core
version is greater than or equal to 2.9.6. This will provide a way to
implement optional features and to determine which features are
supported by the client-core. If the client-core version is older than
2.9.6, no optional features are supported and the op will not be done.
The intent is to allow protocol extensions without relying on the
client-core's current behavior of ignoring what it doesn't understand.
Signed-off-by: Martin Brandenburg <martin@omnibond.com>
Diffstat (limited to 'fs/orangefs/devorangefs-req.c')
| -rw-r--r-- | fs/orangefs/devorangefs-req.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/fs/orangefs/devorangefs-req.c b/fs/orangefs/devorangefs-req.c index 7c40e653e526..ec1a5ff1d843 100644 --- a/fs/orangefs/devorangefs-req.c +++ b/fs/orangefs/devorangefs-req.c @@ -17,7 +17,7 @@ /* this file implements the /dev/pvfs2-req device node */ -uint32_t userspace_version; +uint32_t orangefs_userspace_version; static int open_access_count; @@ -389,9 +389,9 @@ static ssize_t orangefs_devreq_write_iter(struct kiocb *iocb, return -EPROTO; } - if (!userspace_version) { - userspace_version = head.version; - } else if (userspace_version != head.version) { + if (!orangefs_userspace_version) { + orangefs_userspace_version = head.version; + } else if (orangefs_userspace_version != head.version) { gossip_err("Error: userspace version changes\n"); return -EPROTO; } @@ -536,7 +536,7 @@ static int orangefs_devreq_release(struct inode *inode, struct file *file) gossip_debug(GOSSIP_DEV_DEBUG, "pvfs2-client-core: device close complete\n"); open_access_count = 0; - userspace_version = 0; + orangefs_userspace_version = 0; mutex_unlock(&devreq_mutex); return 0; } |