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author | David Howells <dhowells@redhat.com> | 2007-05-10 22:22:20 -0700 |
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committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-05-11 08:29:32 -0700 |
commit | 45222b9e02fb282eb0a8007a3d992dd229ec2410 (patch) | |
tree | 2160228a23c700437bda0898d3a700ac499b941d /fs/afs/vnode.c | |
parent | 0f300ca9284caabdd2c07c7f91b90f1f530f614e (diff) | |
download | kernel_samsung_tuna-45222b9e02fb282eb0a8007a3d992dd229ec2410.zip kernel_samsung_tuna-45222b9e02fb282eb0a8007a3d992dd229ec2410.tar.gz kernel_samsung_tuna-45222b9e02fb282eb0a8007a3d992dd229ec2410.tar.bz2 |
AFS: implement statfs
Implement the statfs() op for AFS.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/afs/vnode.c')
-rw-r--r-- | fs/afs/vnode.c | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/fs/afs/vnode.c b/fs/afs/vnode.c index bea8bd9..c36c98c 100644 --- a/fs/afs/vnode.c +++ b/fs/afs/vnode.c @@ -869,3 +869,55 @@ no_server: spin_unlock(&vnode->lock); return PTR_ERR(server); } + +/* + * get the status of a volume + */ +int afs_vnode_get_volume_status(struct afs_vnode *vnode, struct key *key, + struct afs_volume_status *vs) +{ + struct afs_server *server; + int ret; + + _enter("%s{%x:%u.%u},%x,", + vnode->volume->vlocation->vldb.name, + vnode->fid.vid, + vnode->fid.vnode, + vnode->fid.unique, + key_serial(key)); + + /* this op will fetch the status */ + spin_lock(&vnode->lock); + vnode->update_cnt++; + spin_unlock(&vnode->lock); + + do { + /* pick a server to query */ + server = afs_volume_pick_fileserver(vnode); + if (IS_ERR(server)) + goto no_server; + + _debug("USING SERVER: %08x\n", ntohl(server->addr.s_addr)); + + ret = afs_fs_get_volume_status(server, key, vnode, vs, &afs_sync_call); + + } while (!afs_volume_release_fileserver(vnode, server, ret)); + + /* adjust the flags */ + if (ret == 0) { + afs_vnode_finalise_status_update(vnode, server); + afs_put_server(server); + } else { + afs_vnode_status_update_failed(vnode, ret); + } + + _leave(" = %d", ret); + return ret; + +no_server: + spin_lock(&vnode->lock); + vnode->update_cnt--; + ASSERTCMP(vnode->update_cnt, >=, 0); + spin_unlock(&vnode->lock); + return PTR_ERR(server); +} |