From: Sage Weil <sage@newdream.net>
To: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: Sage Weil <sage@newdream.net>
Subject: [PATCH 17/19] ceph: ioctls
Date: Wed, 22 Jul 2009 12:51:51 -0700 [thread overview]
Message-ID: <1248292313-31326-18-git-send-email-sage@newdream.net> (raw)
In-Reply-To: <1248292313-31326-17-git-send-email-sage@newdream.net>
A few Ceph ioctls for getting and setting file layout (striping)
parameters.
Signed-off-by: Sage Weil <sage@newdream.net>
---
fs/ceph/ioctl.c | 64 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
fs/ceph/ioctl.h | 12 ++++++++++
2 files changed, 76 insertions(+), 0 deletions(-)
create mode 100644 fs/ceph/ioctl.c
create mode 100644 fs/ceph/ioctl.h
diff --git a/fs/ceph/ioctl.c b/fs/ceph/ioctl.c
new file mode 100644
index 0000000..c60ef7b
--- /dev/null
+++ b/fs/ceph/ioctl.c
@@ -0,0 +1,64 @@
+#include "ioctl.h"
+#include "super.h"
+#include "ceph_debug.h"
+
+
+/*
+ * ioctls
+ */
+
+/*
+ * get and set the file layout
+ */
+static long ceph_ioctl_get_layout(struct file *file, void __user *arg)
+{
+ struct ceph_inode_info *ci = ceph_inode(file->f_dentry->d_inode);
+ int err;
+
+ err = ceph_do_getattr(file->f_dentry->d_inode, CEPH_STAT_CAP_LAYOUT);
+ if (!err) {
+ if (copy_to_user(arg, &ci->i_layout, sizeof(ci->i_layout)))
+ return -EFAULT;
+ }
+
+ return err;
+}
+
+static long ceph_ioctl_set_layout(struct file *file, void __user *arg)
+{
+ struct inode *inode = file->f_dentry->d_inode;
+ struct inode *parent_inode = file->f_dentry->d_parent->d_inode;
+ struct ceph_mds_client *mdsc = &ceph_sb_to_client(inode->i_sb)->mdsc;
+ struct ceph_mds_request *req;
+ struct ceph_file_layout layout;
+ int err;
+
+ /* copy and validate */
+ if (copy_from_user(&layout, arg, sizeof(layout)))
+ return -EFAULT;
+
+ req = ceph_mdsc_create_request(mdsc, CEPH_MDS_OP_SETLAYOUT,
+ USE_AUTH_MDS);
+ if (IS_ERR(req))
+ return PTR_ERR(req);
+ req->r_inode = igrab(inode);
+ req->r_inode_drop = CEPH_CAP_FILE_SHARED | CEPH_CAP_FILE_EXCL;
+ req->r_args.setlayout.layout = layout;
+
+ err = ceph_mdsc_do_request(mdsc, parent_inode, req);
+ ceph_mdsc_put_request(req);
+ return err;
+}
+
+long ceph_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+{
+ dout("ioctl file %p cmd %u arg %lu\n", file, cmd, arg);
+ switch (cmd) {
+ case CEPH_IOC_GET_LAYOUT:
+ return ceph_ioctl_get_layout(file, (void __user *)arg);
+
+ case CEPH_IOC_SET_LAYOUT:
+ return ceph_ioctl_set_layout(file, (void __user *)arg);
+ }
+ return -ENOTTY;
+}
diff --git a/fs/ceph/ioctl.h b/fs/ceph/ioctl.h
new file mode 100644
index 0000000..537c27b
--- /dev/null
+++ b/fs/ceph/ioctl.h
@@ -0,0 +1,12 @@
+#ifndef FS_CEPH_IOCTL_H
+#define FS_CEPH_IOCTL_H
+
+#include <linux/ioctl.h>
+#include "types.h"
+
+#define CEPH_IOCTL_MAGIC 0x97
+
+#define CEPH_IOC_GET_LAYOUT _IOR(CEPH_IOCTL_MAGIC, 1, struct ceph_file_layout)
+#define CEPH_IOC_SET_LAYOUT _IOW(CEPH_IOCTL_MAGIC, 2, struct ceph_file_layout)
+
+#endif
--
1.5.6.5
next prev parent reply other threads:[~2009-07-22 19:47 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-07-22 19:51 [PATCH 00/19] ceph: Ceph distributed file system client v0.11 Sage Weil
2009-07-22 19:51 ` [PATCH 01/19] ceph: documentation Sage Weil
2009-07-22 19:51 ` [PATCH 02/19] ceph: on-wire types Sage Weil
2009-07-22 19:51 ` [PATCH 03/19] ceph: client types Sage Weil
2009-07-22 19:51 ` [PATCH 04/19] ceph: super.c Sage Weil
2009-07-22 19:51 ` [PATCH 05/19] ceph: inode operations Sage Weil
2009-07-22 19:51 ` [PATCH 06/19] ceph: directory operations Sage Weil
2009-07-22 19:51 ` [PATCH 07/19] ceph: file operations Sage Weil
2009-07-22 19:51 ` [PATCH 08/19] ceph: address space operations Sage Weil
2009-07-22 19:51 ` [PATCH 09/19] ceph: MDS client Sage Weil
2009-07-22 19:51 ` [PATCH 10/19] ceph: OSD client Sage Weil
2009-07-22 19:51 ` [PATCH 11/19] ceph: CRUSH mapping algorithm Sage Weil
2009-07-22 19:51 ` [PATCH 12/19] ceph: monitor client Sage Weil
2009-07-22 19:51 ` [PATCH 13/19] ceph: capability management Sage Weil
2009-07-22 19:51 ` [PATCH 14/19] ceph: snapshot management Sage Weil
2009-07-22 19:51 ` [PATCH 15/19] ceph: messenger library Sage Weil
2009-07-22 19:51 ` [PATCH 16/19] ceph: nfs re-export support Sage Weil
2009-07-22 19:51 ` Sage Weil [this message]
2009-07-22 19:51 ` [PATCH 18/19] ceph: debugfs Sage Weil
2009-07-22 19:51 ` [PATCH 19/19] ceph: Kconfig, Makefile Sage Weil
2009-07-25 5:31 ` [PATCH 18/19] ceph: debugfs Greg KH
2009-07-27 17:06 ` Sage Weil
2009-07-22 22:39 ` [PATCH 17/19] ceph: ioctls Andi Kleen
2009-07-22 23:52 ` Sage Weil
2009-07-23 6:24 ` Andi Kleen
2009-07-23 18:42 ` Sage Weil
2009-07-23 10:25 ` [PATCH 08/19] ceph: address space operations Andi Kleen
2009-07-23 18:22 ` Sage Weil
2009-07-23 19:16 ` Andi Kleen
2009-07-24 4:48 ` Sage Weil
2009-07-23 19:17 ` Andi Kleen
2009-07-23 18:26 ` Sage Weil
2009-07-23 18:47 ` Trond Myklebust
2009-07-24 4:44 ` Sage Weil
2009-07-24 6:56 ` Andi Kleen
2009-07-24 16:52 ` Sage Weil
2009-07-24 19:40 ` J. Bruce Fields
-- strict thread matches above, loose matches on Subject: below --
2009-08-05 22:30 [PATCH 00/19] ceph distributed file system client Sage Weil
2009-08-05 22:30 ` [PATCH 01/19] ceph: documentation Sage Weil
2009-08-05 22:30 ` [PATCH 02/19] ceph: on-wire types Sage Weil
2009-08-05 22:30 ` [PATCH 03/19] ceph: client types Sage Weil
2009-08-05 22:30 ` [PATCH 04/19] ceph: super.c Sage Weil
2009-08-05 22:30 ` [PATCH 05/19] ceph: inode operations Sage Weil
2009-08-05 22:30 ` [PATCH 06/19] ceph: directory operations Sage Weil
2009-08-05 22:30 ` [PATCH 07/19] ceph: file operations Sage Weil
2009-08-05 22:30 ` [PATCH 08/19] ceph: address space operations Sage Weil
2009-08-05 22:30 ` [PATCH 09/19] ceph: MDS client Sage Weil
2009-08-05 22:30 ` [PATCH 10/19] ceph: OSD client Sage Weil
2009-08-05 22:30 ` [PATCH 11/19] ceph: CRUSH mapping algorithm Sage Weil
2009-08-05 22:30 ` [PATCH 12/19] ceph: monitor client Sage Weil
2009-08-05 22:30 ` [PATCH 13/19] ceph: capability management Sage Weil
2009-08-05 22:30 ` [PATCH 14/19] ceph: snapshot management Sage Weil
2009-08-05 22:30 ` [PATCH 15/19] ceph: messenger library Sage Weil
2009-08-05 22:30 ` [PATCH 16/19] ceph: nfs re-export support Sage Weil
2009-08-05 22:30 ` [PATCH 17/19] ceph: ioctls Sage Weil
2009-08-06 15:41 ` Andi Kleen
2009-08-06 17:04 ` Sage Weil
2008-11-14 0:55 [PATCH 00/19] ceph: Ceph distributed file system client Sage Weil
2008-11-14 0:56 ` [PATCH 01/19] ceph: documentation Sage Weil
2008-11-14 0:56 ` [PATCH 02/19] ceph: on-wire types Sage Weil
2008-11-14 0:56 ` [PATCH 03/19] ceph: client types Sage Weil
2008-11-14 0:56 ` [PATCH 04/19] ceph: super.c Sage Weil
2008-11-14 0:56 ` [PATCH 05/19] ceph: inode operations Sage Weil
2008-11-14 0:56 ` [PATCH 06/19] ceph: directory operations Sage Weil
2008-11-14 0:56 ` [PATCH 07/19] ceph: file operations Sage Weil
2008-11-14 0:56 ` [PATCH 08/19] ceph: address space operations Sage Weil
2008-11-14 0:56 ` [PATCH 09/19] ceph: MDS client Sage Weil
2008-11-14 0:56 ` [PATCH 10/19] ceph: OSD client Sage Weil
2008-11-14 0:56 ` [PATCH 11/19] ceph: CRUSH mapping algorithm Sage Weil
2008-11-14 0:56 ` [PATCH 12/19] ceph: monitor client Sage Weil
2008-11-14 0:56 ` [PATCH 13/19] ceph: capability management Sage Weil
2008-11-14 0:56 ` [PATCH 14/19] ceph: snapshot management Sage Weil
2008-11-14 0:56 ` [PATCH 15/19] ceph: messenger library Sage Weil
2008-11-14 0:56 ` [PATCH 16/19] ceph: nfs re-export support Sage Weil
2008-11-14 0:56 ` [PATCH 17/19] ceph: ioctls Sage Weil
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