diff options
Diffstat (limited to 'fs/9p/vfs_super.c')
| -rw-r--r-- | fs/9p/vfs_super.c | 39 |
1 files changed, 38 insertions, 1 deletions
diff --git a/fs/9p/vfs_super.c b/fs/9p/vfs_super.c index cc3fa8c3aab6..be74d020436e 100644 --- a/fs/9p/vfs_super.c +++ b/fs/9p/vfs_super.c @@ -38,6 +38,7 @@ #include <linux/idr.h> #include <linux/sched.h> #include <linux/slab.h> +#include <linux/statfs.h> #include <net/9p/9p.h> #include <net/9p/client.h> @@ -214,6 +215,42 @@ v9fs_umount_begin(struct super_block *sb) v9fs_session_begin_cancel(v9ses); } +static int v9fs_statfs(struct dentry *dentry, struct kstatfs *buf) +{ + struct v9fs_session_info *v9ses; + struct p9_fid *fid; + struct p9_rstatfs rs; + int res; + + fid = v9fs_fid_lookup(dentry); + if (IS_ERR(fid)) { + res = PTR_ERR(fid); + goto done; + } + + v9ses = v9fs_inode2v9ses(dentry->d_inode); + if (v9fs_proto_dotl(v9ses)) { + res = p9_client_statfs(fid, &rs); + if (res == 0) { + buf->f_type = rs.type; + buf->f_bsize = rs.bsize; + buf->f_blocks = rs.blocks; + buf->f_bfree = rs.bfree; + buf->f_bavail = rs.bavail; + buf->f_files = rs.files; + buf->f_ffree = rs.ffree; + buf->f_fsid.val[0] = rs.fsid & 0xFFFFFFFFUL; + buf->f_fsid.val[1] = (rs.fsid >> 32) & 0xFFFFFFFFUL; + buf->f_namelen = rs.namelen; + } + if (res != -ENOSYS) + goto done; + } + res = simple_statfs(dentry, buf); +done: + return res; +} + static const struct super_operations v9fs_super_ops = { #ifdef CONFIG_9P_FSCACHE .alloc_inode = v9fs_alloc_inode, @@ -230,7 +267,7 @@ static const struct super_operations v9fs_super_ops_dotl = { .alloc_inode = v9fs_alloc_inode, .destroy_inode = v9fs_destroy_inode, #endif - .statfs = simple_statfs, + .statfs = v9fs_statfs, .clear_inode = v9fs_clear_inode, .show_options = generic_show_options, .umount_begin = v9fs_umount_begin, |