From: Miklos Szeredi <mszeredi@redhat.com>
To: linux-fsdevel@vger.kernel.org
Cc: Al Viro <viro@ZenIV.linux.org.uk>,
linux-kernel@vger.kernel.org, Christoph Hellwig <hch@lst.de>,
Mike Marshall <hubcap@omnibond.com>
Subject: [PATCH v2 09/18] orangefs: convert to miscattr
Date: Mon, 22 Mar 2021 15:49:07 +0100 [thread overview]
Message-ID: <20210322144916.137245-10-mszeredi@redhat.com> (raw)
In-Reply-To: <20210322144916.137245-1-mszeredi@redhat.com>
Use the miscattr API to let the VFS handle locking, permission checking and
conversion.
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Cc: Mike Marshall <hubcap@omnibond.com>
---
fs/orangefs/file.c | 79 ---------------------------------------------
fs/orangefs/inode.c | 50 ++++++++++++++++++++++++++++
2 files changed, 50 insertions(+), 79 deletions(-)
diff --git a/fs/orangefs/file.c b/fs/orangefs/file.c
index 9b28a7132466..ccef8c9dd516 100644
--- a/fs/orangefs/file.c
+++ b/fs/orangefs/file.c
@@ -375,84 +375,6 @@ static ssize_t orangefs_file_write_iter(struct kiocb *iocb,
return ret;
}
-static int orangefs_getflags(struct inode *inode, unsigned long *uval)
-{
- __u64 val = 0;
- int ret;
-
- ret = orangefs_inode_getxattr(inode,
- "user.pvfs2.meta_hint",
- &val, sizeof(val));
- if (ret < 0 && ret != -ENODATA)
- return ret;
- else if (ret == -ENODATA)
- val = 0;
- *uval = val;
- return 0;
-}
-
-/*
- * Perform a miscellaneous operation on a file.
- */
-static long orangefs_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
-{
- struct inode *inode = file_inode(file);
- int ret = -ENOTTY;
- __u64 val = 0;
- unsigned long uval;
-
- gossip_debug(GOSSIP_FILE_DEBUG,
- "orangefs_ioctl: called with cmd %d\n",
- cmd);
-
- /*
- * we understand some general ioctls on files, such as the immutable
- * and append flags
- */
- if (cmd == FS_IOC_GETFLAGS) {
- ret = orangefs_getflags(inode, &uval);
- if (ret)
- return ret;
- gossip_debug(GOSSIP_FILE_DEBUG,
- "orangefs_ioctl: FS_IOC_GETFLAGS: %llu\n",
- (unsigned long long)uval);
- return put_user(uval, (int __user *)arg);
- } else if (cmd == FS_IOC_SETFLAGS) {
- unsigned long old_uval;
-
- ret = 0;
- if (get_user(uval, (int __user *)arg))
- return -EFAULT;
- /*
- * ORANGEFS_MIRROR_FL is set internally when the mirroring mode
- * is turned on for a file. The user is not allowed to turn
- * on this bit, but the bit is present if the user first gets
- * the flags and then updates the flags with some new
- * settings. So, we ignore it in the following edit. bligon.
- */
- if ((uval & ~ORANGEFS_MIRROR_FL) &
- (~(FS_IMMUTABLE_FL | FS_APPEND_FL | FS_NOATIME_FL))) {
- gossip_err("orangefs_ioctl: the FS_IOC_SETFLAGS only supports setting one of FS_IMMUTABLE_FL|FS_APPEND_FL|FS_NOATIME_FL\n");
- return -EINVAL;
- }
- ret = orangefs_getflags(inode, &old_uval);
- if (ret)
- return ret;
- ret = vfs_ioc_setflags_prepare(inode, old_uval, uval);
- if (ret)
- return ret;
- val = uval;
- gossip_debug(GOSSIP_FILE_DEBUG,
- "orangefs_ioctl: FS_IOC_SETFLAGS: %llu\n",
- (unsigned long long)val);
- ret = orangefs_inode_setxattr(inode,
- "user.pvfs2.meta_hint",
- &val, sizeof(val), 0);
- }
-
- return ret;
-}
-
static vm_fault_t orangefs_fault(struct vm_fault *vmf)
{
struct file *file = vmf->vma->vm_file;
@@ -657,7 +579,6 @@ const struct file_operations orangefs_file_operations = {
.read_iter = orangefs_file_read_iter,
.write_iter = orangefs_file_write_iter,
.lock = orangefs_lock,
- .unlocked_ioctl = orangefs_ioctl,
.mmap = orangefs_file_mmap,
.open = generic_file_open,
.splice_read = generic_file_splice_read,
diff --git a/fs/orangefs/inode.c b/fs/orangefs/inode.c
index 5079cfafa8d7..63d420d091f8 100644
--- a/fs/orangefs/inode.c
+++ b/fs/orangefs/inode.c
@@ -11,6 +11,7 @@
*/
#include <linux/bvec.h>
+#include <linux/miscattr.h>
#include "protocol.h"
#include "orangefs-kernel.h"
#include "orangefs-bufmap.h"
@@ -954,6 +955,53 @@ int orangefs_update_time(struct inode *inode, struct timespec64 *time, int flags
return __orangefs_setattr(inode, &iattr);
}
+static int orangefs_miscattr_get(struct dentry *dentry, struct miscattr *ma)
+{
+ u64 val = 0;
+ int ret;
+
+ gossip_debug(GOSSIP_FILE_DEBUG, "%s: called on %pd\n", __func__,
+ dentry);
+
+ ret = orangefs_inode_getxattr(d_inode(dentry),
+ "user.pvfs2.meta_hint",
+ &val, sizeof(val));
+ if (ret < 0 && ret != -ENODATA)
+ return ret;
+
+ gossip_debug(GOSSIP_FILE_DEBUG, "%s: flags=%u\n", __func__, (u32) val);
+
+ miscattr_fill_flags(ma, val);
+ return 0;
+}
+
+static int orangefs_miscattr_set(struct user_namespace *mnt_userns,
+ struct dentry *dentry, struct miscattr *ma)
+{
+ u64 val = 0;
+
+ gossip_debug(GOSSIP_FILE_DEBUG, "%s: called on %pd\n", __func__,
+ dentry);
+ /*
+ * ORANGEFS_MIRROR_FL is set internally when the mirroring mode is
+ * turned on for a file. The user is not allowed to turn on this bit,
+ * but the bit is present if the user first gets the flags and then
+ * updates the flags with some new settings. So, we ignore it in the
+ * following edit. bligon.
+ */
+ if (miscattr_has_xattr(ma) ||
+ (ma->flags & ~(FS_IMMUTABLE_FL | FS_APPEND_FL | FS_NOATIME_FL | ORANGEFS_MIRROR_FL))) {
+ gossip_err("%s: only supports setting one of FS_IMMUTABLE_FL|FS_APPEND_FL|FS_NOATIME_FL\n",
+ __func__);
+ return -EOPNOTSUPP;
+ }
+ val = ma->flags;
+ gossip_debug(GOSSIP_FILE_DEBUG, "%s: flags=%u\n", __func__, (u32) val);
+ return orangefs_inode_setxattr(d_inode(dentry),
+ "user.pvfs2.meta_hint",
+ &val, sizeof(val), 0);
+}
+
/* ORANGEFS2 implementation of VFS inode operations for files */
static const struct inode_operations orangefs_file_inode_operations = {
.get_acl = orangefs_get_acl,
@@ -963,6 +1011,8 @@ static const struct inode_operations orangefs_file_inode_operations = {
.listxattr = orangefs_listxattr,
.permission = orangefs_permission,
.update_time = orangefs_update_time,
+ .miscattr_get = orangefs_miscattr_get,
+ .miscattr_set = orangefs_miscattr_set,
};
static int orangefs_init_iops(struct inode *inode)
--
2.30.2
next prev parent reply other threads:[~2021-03-22 14:51 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-22 14:48 [PATCH v2 00/18] new kAPI for FS_IOC_[GS]ETFLAGS/FS_IOC_FS[GS]ETXATTR Miklos Szeredi
2021-03-22 14:48 ` [PATCH v2 01/18] vfs: add miscattr ops Miklos Szeredi
2021-03-22 22:33 ` Darrick J. Wong
2021-03-23 5:21 ` Amir Goldstein
2021-03-23 11:22 ` David Sterba
2021-03-24 8:06 ` Christian Brauner
2021-03-24 5:02 ` Al Viro
2021-03-24 8:45 ` Miklos Szeredi
2021-03-24 12:26 ` Al Viro
2021-03-24 13:45 ` Miklos Szeredi
2021-03-24 8:21 ` Christian Brauner
2021-03-22 14:49 ` [PATCH v2 02/18] ecryptfs: stack " Miklos Szeredi
2021-03-22 14:49 ` [PATCH v2 03/18] ovl: " Miklos Szeredi
2021-03-24 5:09 ` Al Viro
2021-03-24 5:18 ` Al Viro
2021-03-22 14:49 ` [PATCH v2 04/18] btrfs: convert to miscattr Miklos Szeredi
2021-03-23 11:41 ` David Sterba
2021-03-22 14:49 ` [PATCH v2 05/18] ext2: " Miklos Szeredi
2021-03-22 14:49 ` [PATCH v2 06/18] ext4: " Miklos Szeredi
2021-03-22 14:49 ` [PATCH v2 07/18] f2fs: " Miklos Szeredi
2021-03-22 14:49 ` [PATCH v2 08/18] gfs2: " Miklos Szeredi
2021-03-22 14:49 ` Miklos Szeredi [this message]
2021-03-22 14:49 ` [PATCH v2 10/18] xfs: " Miklos Szeredi
2021-03-22 22:51 ` Darrick J. Wong
2021-03-22 14:49 ` [PATCH v2 11/18] efivars: " Miklos Szeredi
2021-03-22 14:49 ` [PATCH v2 12/18] hfsplus: " Miklos Szeredi
2021-03-22 14:49 ` [PATCH v2 13/18] jfs: " Miklos Szeredi
2021-03-22 14:49 ` [PATCH v2 14/18] nilfs2: " Miklos Szeredi
2021-03-22 14:49 ` [PATCH v2 15/18] ocfs2: " Miklos Szeredi
2021-03-22 14:49 ` [PATCH v2 16/18] reiserfs: " Miklos Szeredi
2021-03-22 14:49 ` [PATCH v2 17/18] ubifs: " Miklos Szeredi
2021-03-22 14:49 ` [PATCH v2 18/18] vfs: remove unused ioctl helpers Miklos Szeredi
2021-03-22 22:51 ` Darrick J. Wong
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20210322144916.137245-10-mszeredi@redhat.com \
--to=mszeredi@redhat.com \
--cc=hch@lst.de \
--cc=hubcap@omnibond.com \
--cc=linux-fsdevel@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=viro@ZenIV.linux.org.uk \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).