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nfs: show "local_lock" mount option in /proc/mounts
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Display the status of 'local_lock' mount option in /proc/mounts.


Signed-off-by: Suresh Jayaraman <sjayaraman@suse.de>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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Suresh Jayaraman authored and Trond Myklebust committed Sep 23, 2010
1 parent ef84303 commit 7c563cc
Showing 1 changed file with 13 additions and 0 deletions.
13 changes: 13 additions & 0 deletions fs/nfs/super.c
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Original file line number Diff line number Diff line change
Expand Up @@ -632,6 +632,7 @@ static void nfs_show_mount_options(struct seq_file *m, struct nfs_server *nfss,
const struct proc_nfs_info *nfs_infop;
struct nfs_client *clp = nfss->nfs_client;
u32 version = clp->rpc_ops->version;
int local_flock, local_fcntl;

seq_printf(m, ",vers=%u", version);
seq_printf(m, ",rsize=%u", nfss->rsize);
Expand Down Expand Up @@ -680,6 +681,18 @@ static void nfs_show_mount_options(struct seq_file *m, struct nfs_server *nfss,
else
seq_printf(m, ",lookupcache=pos");
}

local_flock = nfss->flags & NFS_MOUNT_LOCAL_FLOCK;
local_fcntl = nfss->flags & NFS_MOUNT_LOCAL_FCNTL;

if (!local_flock && !local_fcntl)
seq_printf(m, ",local_lock=none");
else if (local_flock && local_fcntl)
seq_printf(m, ",local_lock=all");
else if (local_flock)
seq_printf(m, ",local_lock=flock");
else
seq_printf(m, ",local_lock=posix");
}

/*
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