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Diffstat (limited to 'fs/freevxfs/vxfs_super.c')
-rw-r--r--fs/freevxfs/vxfs_super.c116
1 files changed, 50 insertions, 66 deletions
diff --git a/fs/freevxfs/vxfs_super.c b/fs/freevxfs/vxfs_super.c
index 48b24bb50d02..fabe60778658 100644
--- a/fs/freevxfs/vxfs_super.c
+++ b/fs/freevxfs/vxfs_super.c
@@ -1,31 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (c) 2000-2001 Christoph Hellwig.
* Copyright (c) 2016 Krzysztof Blaszkowski
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. The name of the author may not be used to endorse or promote products
- * derived from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL").
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
- * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
*/
/*
@@ -41,7 +17,7 @@
#include <linux/slab.h>
#include <linux/stat.h>
#include <linux/vfs.h>
-#include <linux/mount.h>
+#include <linux/fs_context.h>
#include "vxfs.h"
#include "vxfs_extern.h"
@@ -100,6 +76,7 @@ vxfs_statfs(struct dentry *dentry, struct kstatfs *bufp)
{
struct vxfs_sb_info *infp = VXFS_SBI(dentry->d_sb);
struct vxfs_sb *raw_sb = infp->vsi_raw;
+ u64 id = huge_encode_dev(dentry->d_sb->s_bdev->bd_dev);
bufp->f_type = VXFS_SUPER_MAGIC;
bufp->f_bsize = dentry->d_sb->s_blocksize;
@@ -108,15 +85,16 @@ vxfs_statfs(struct dentry *dentry, struct kstatfs *bufp)
bufp->f_bavail = 0;
bufp->f_files = 0;
bufp->f_ffree = fs32_to_cpu(infp, raw_sb->vs_ifree);
+ bufp->f_fsid = u64_to_fsid(id);
bufp->f_namelen = VXFS_NAMELEN;
return 0;
}
-static int vxfs_remount(struct super_block *sb, int *flags, char *data)
+static int vxfs_reconfigure(struct fs_context *fc)
{
- sync_filesystem(sb);
- *flags |= SB_RDONLY;
+ sync_filesystem(fc->root->d_sb);
+ fc->sb_flags |= SB_RDONLY;
return 0;
}
@@ -124,49 +102,42 @@ static struct inode *vxfs_alloc_inode(struct super_block *sb)
{
struct vxfs_inode_info *vi;
- vi = kmem_cache_alloc(vxfs_inode_cachep, GFP_KERNEL);
+ vi = alloc_inode_sb(sb, vxfs_inode_cachep, GFP_KERNEL);
if (!vi)
return NULL;
inode_init_once(&vi->vfs_inode);
return &vi->vfs_inode;
}
-static void vxfs_i_callback(struct rcu_head *head)
+static void vxfs_free_inode(struct inode *inode)
{
- struct inode *inode = container_of(head, struct inode, i_rcu);
-
kmem_cache_free(vxfs_inode_cachep, VXFS_INO(inode));
}
-static void vxfs_destroy_inode(struct inode *inode)
-{
- call_rcu(&inode->i_rcu, vxfs_i_callback);
-}
-
static const struct super_operations vxfs_super_ops = {
.alloc_inode = vxfs_alloc_inode,
- .destroy_inode = vxfs_destroy_inode,
+ .free_inode = vxfs_free_inode,
.evict_inode = vxfs_evict_inode,
.put_super = vxfs_put_super,
.statfs = vxfs_statfs,
- .remount_fs = vxfs_remount,
};
-static int vxfs_try_sb_magic(struct super_block *sbp, int silent,
+static int vxfs_try_sb_magic(struct super_block *sbp, struct fs_context *fc,
unsigned blk, __fs32 magic)
{
struct buffer_head *bp;
struct vxfs_sb *rsbp;
struct vxfs_sb_info *infp = VXFS_SBI(sbp);
+ int silent = fc->sb_flags & SB_SILENT;
int rc = -ENOMEM;
bp = sb_bread(sbp, blk);
do {
if (!bp || !buffer_mapped(bp)) {
if (!silent) {
- printk(KERN_WARNING
- "vxfs: unable to read disk superblock at %u\n",
- blk);
+ warnf(fc,
+ "vxfs: unable to read disk superblock at %u",
+ blk);
}
break;
}
@@ -175,9 +146,9 @@ static int vxfs_try_sb_magic(struct super_block *sbp, int silent,
rsbp = (struct vxfs_sb *)bp->b_data;
if (rsbp->vs_magic != magic) {
if (!silent)
- printk(KERN_NOTICE
- "vxfs: WRONG superblock magic %08x at %u\n",
- rsbp->vs_magic, blk);
+ infof(fc,
+ "vxfs: WRONG superblock magic %08x at %u",
+ rsbp->vs_magic, blk);
break;
}
@@ -196,10 +167,9 @@ static int vxfs_try_sb_magic(struct super_block *sbp, int silent,
}
/**
- * vxfs_read_super - read superblock into memory and initialize filesystem
+ * vxfs_fill_super - read superblock into memory and initialize filesystem
* @sbp: VFS superblock (to fill)
- * @dp: fs private mount data
- * @silent: do not complain loudly when sth is wrong
+ * @fc: filesytem context
*
* Description:
* We are called on the first mount of a filesystem to read the
@@ -211,50 +181,53 @@ static int vxfs_try_sb_magic(struct super_block *sbp, int silent,
* Locking:
* We are under @sbp->s_lock.
*/
-static int vxfs_fill_super(struct super_block *sbp, void *dp, int silent)
+static int vxfs_fill_super(struct super_block *sbp, struct fs_context *fc)
{
struct vxfs_sb_info *infp;
struct vxfs_sb *rsbp;
u_long bsize;
struct inode *root;
int ret = -EINVAL;
+ int silent = fc->sb_flags & SB_SILENT;
u32 j;
sbp->s_flags |= SB_RDONLY;
infp = kzalloc(sizeof(*infp), GFP_KERNEL);
if (!infp) {
- printk(KERN_WARNING "vxfs: unable to allocate incore superblock\n");
+ warnf(fc, "vxfs: unable to allocate incore superblock");
return -ENOMEM;
}
bsize = sb_min_blocksize(sbp, BLOCK_SIZE);
if (!bsize) {
- printk(KERN_WARNING "vxfs: unable to set blocksize\n");
+ warnf(fc, "vxfs: unable to set blocksize");
goto out;
}
sbp->s_op = &vxfs_super_ops;
sbp->s_fs_info = infp;
+ sbp->s_time_min = 0;
+ sbp->s_time_max = U32_MAX;
- if (!vxfs_try_sb_magic(sbp, silent, 1,
+ if (!vxfs_try_sb_magic(sbp, fc, 1,
(__force __fs32)cpu_to_le32(VXFS_SUPER_MAGIC))) {
/* Unixware, x86 */
infp->byte_order = VXFS_BO_LE;
- } else if (!vxfs_try_sb_magic(sbp, silent, 8,
+ } else if (!vxfs_try_sb_magic(sbp, fc, 8,
(__force __fs32)cpu_to_be32(VXFS_SUPER_MAGIC))) {
/* HP-UX, parisc */
infp->byte_order = VXFS_BO_BE;
} else {
if (!silent)
- printk(KERN_NOTICE "vxfs: can't find superblock.\n");
+ infof(fc, "vxfs: can't find superblock.");
goto out;
}
rsbp = infp->vsi_raw;
j = fs32_to_cpu(infp, rsbp->vs_version);
if ((j < 2 || j > 4) && !silent) {
- printk(KERN_NOTICE "vxfs: unsupported VxFS version (%d)\n", j);
+ infof(fc, "vxfs: unsupported VxFS version (%d)", j);
goto out;
}
@@ -271,17 +244,17 @@ static int vxfs_fill_super(struct super_block *sbp, void *dp, int silent)
j = fs32_to_cpu(infp, rsbp->vs_bsize);
if (!sb_set_blocksize(sbp, j)) {
- printk(KERN_WARNING "vxfs: unable to set final block size\n");
+ warnf(fc, "vxfs: unable to set final block size");
goto out;
}
if (vxfs_read_olt(sbp, bsize)) {
- printk(KERN_WARNING "vxfs: unable to read olt\n");
+ warnf(fc, "vxfs: unable to read olt");
goto out;
}
if (vxfs_read_fshead(sbp)) {
- printk(KERN_WARNING "vxfs: unable to read fshead\n");
+ warnf(fc, "vxfs: unable to read fshead");
goto out;
}
@@ -292,7 +265,7 @@ static int vxfs_fill_super(struct super_block *sbp, void *dp, int silent)
}
sbp->s_root = d_make_root(root);
if (!sbp->s_root) {
- printk(KERN_WARNING "vxfs: unable to get root dentry.\n");
+ warnf(fc, "vxfs: unable to get root dentry.");
goto out_free_ilist;
}
@@ -311,18 +284,29 @@ out:
/*
* The usual module blurb.
*/
-static struct dentry *vxfs_mount(struct file_system_type *fs_type,
- int flags, const char *dev_name, void *data)
+static int vxfs_get_tree(struct fs_context *fc)
{
- return mount_bdev(fs_type, flags, dev_name, data, vxfs_fill_super);
+ return get_tree_bdev(fc, vxfs_fill_super);
+}
+
+static const struct fs_context_operations vxfs_context_ops = {
+ .get_tree = vxfs_get_tree,
+ .reconfigure = vxfs_reconfigure,
+};
+
+static int vxfs_init_fs_context(struct fs_context *fc)
+{
+ fc->ops = &vxfs_context_ops;
+
+ return 0;
}
static struct file_system_type vxfs_fs_type = {
.owner = THIS_MODULE,
.name = "vxfs",
- .mount = vxfs_mount,
.kill_sb = kill_block_super,
.fs_flags = FS_REQUIRES_DEV,
+ .init_fs_context = vxfs_init_fs_context,
};
MODULE_ALIAS_FS("vxfs"); /* makes mount -t vxfs autoload the module */
MODULE_ALIAS("vxfs");
@@ -334,7 +318,7 @@ vxfs_init(void)
vxfs_inode_cachep = kmem_cache_create_usercopy("vxfs_inode",
sizeof(struct vxfs_inode_info), 0,
- SLAB_RECLAIM_ACCOUNT|SLAB_MEM_SPREAD,
+ SLAB_RECLAIM_ACCOUNT,
offsetof(struct vxfs_inode_info, vii_immed.vi_immed),
sizeof_field(struct vxfs_inode_info,
vii_immed.vi_immed),
generated by cgit (git 2.34.1) at 2025-12-25 10:13:00 +0000