#include <linux/highmem.h>
#include <linux/init.h>
#include <linux/string.h>
-#include <linux/smp_lock.h>
#include <linux/backing-dev.h>
#include <asm/uaccess.h>
#define MLOG_MASK_PREFIX ML_DLMFS
#include "cluster/masklog.h"
-static struct super_operations dlmfs_ops;
-static struct file_operations dlmfs_file_operations;
-static struct inode_operations dlmfs_dir_inode_operations;
-static struct inode_operations dlmfs_root_inode_operations;
-static struct inode_operations dlmfs_file_inode_operations;
-static kmem_cache_t *dlmfs_inode_cache;
+#include "ocfs2_lockingver.h"
+
+static const struct super_operations dlmfs_ops;
+static const struct file_operations dlmfs_file_operations;
+static const struct inode_operations dlmfs_dir_inode_operations;
+static const struct inode_operations dlmfs_root_inode_operations;
+static const struct inode_operations dlmfs_file_inode_operations;
+static struct kmem_cache *dlmfs_inode_cache;
struct workqueue_struct *user_dlm_worker;
/*
+ * This is the userdlmfs locking protocol version.
+ *
+ * See fs/ocfs2/dlmglue.c for more details on locking versions.
+ */
+static const struct dlm_protocol_version user_locking_protocol = {
+ .pv_major = OCFS2_LOCKING_PROTOCOL_MAJOR,
+ .pv_minor = OCFS2_LOCKING_PROTOCOL_MINOR,
+};
+
+/*
* decodes a set of open flags into a valid lock level and a set of flags.
* returns < 0 if we have invalid flags
* flags which mean something to us:
* doesn't make sense for LVB writes. */
file->f_flags &= ~O_APPEND;
- fp = kmalloc(sizeof(*fp), GFP_KERNEL);
+ fp = kmalloc(sizeof(*fp), GFP_NOFS);
if (!fp) {
status = -ENOMEM;
goto bail;
int bytes_left;
ssize_t readlen;
char *lvb_buf;
- struct inode *inode = filp->f_dentry->d_inode;
+ struct inode *inode = filp->f_path.dentry->d_inode;
mlog(0, "inode %lu, count = %zu, *ppos = %llu\n",
inode->i_ino, count, *ppos);
else
readlen = count - *ppos;
- lvb_buf = kmalloc(readlen, GFP_KERNEL);
+ lvb_buf = kmalloc(readlen, GFP_NOFS);
if (!lvb_buf)
return -ENOMEM;
int bytes_left;
ssize_t writelen;
char *lvb_buf;
- struct inode *inode = filp->f_dentry->d_inode;
+ struct inode *inode = filp->f_path.dentry->d_inode;
mlog(0, "inode %lu, count = %zu, *ppos = %llu\n",
inode->i_ino, count, *ppos);
else
writelen = count - *ppos;
- lvb_buf = kmalloc(writelen, GFP_KERNEL);
+ lvb_buf = kmalloc(writelen, GFP_NOFS);
if (!lvb_buf)
return -ENOMEM;
return writelen;
}
-static void dlmfs_init_once(void *foo,
- kmem_cache_t *cachep,
- unsigned long flags)
+static void dlmfs_init_once(void *foo)
{
struct dlmfs_inode_private *ip =
(struct dlmfs_inode_private *) foo;
- if ((flags & (SLAB_CTOR_VERIFY|SLAB_CTOR_CONSTRUCTOR)) ==
- SLAB_CTOR_CONSTRUCTOR) {
- ip->ip_dlm = NULL;
- ip->ip_parent = NULL;
+ ip->ip_dlm = NULL;
+ ip->ip_parent = NULL;
- inode_init_once(&ip->ip_vfs_inode);
- }
+ inode_init_once(&ip->ip_vfs_inode);
}
static struct inode *dlmfs_alloc_inode(struct super_block *sb)
{
struct dlmfs_inode_private *ip;
- ip = kmem_cache_alloc(dlmfs_inode_cache, SLAB_NOFS);
+ ip = kmem_cache_alloc(dlmfs_inode_cache, GFP_NOFS);
if (!ip)
return NULL;
static struct backing_dev_info dlmfs_backing_dev_info = {
.ra_pages = 0, /* No readahead */
- .capabilities = BDI_CAP_NO_ACCT_DIRTY | BDI_CAP_NO_WRITEBACK,
+ .capabilities = BDI_CAP_NO_ACCT_AND_WRITEBACK,
};
static struct inode *dlmfs_get_root_inode(struct super_block *sb)
ip = DLMFS_I(inode);
inode->i_mode = mode;
- inode->i_uid = current->fsuid;
- inode->i_gid = current->fsgid;
- inode->i_blksize = PAGE_CACHE_SIZE;
+ inode->i_uid = current_fsuid();
+ inode->i_gid = current_fsgid();
inode->i_blocks = 0;
inode->i_mapping->backing_dev_info = &dlmfs_backing_dev_info;
inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME;
- inode->i_nlink++;
+ inc_nlink(inode);
inode->i_fop = &simple_dir_operations;
inode->i_op = &dlmfs_root_inode_operations;
return NULL;
inode->i_mode = mode;
- inode->i_uid = current->fsuid;
- inode->i_gid = current->fsgid;
- inode->i_blksize = PAGE_CACHE_SIZE;
+ inode->i_uid = current_fsuid();
+ inode->i_gid = current_fsgid();
inode->i_blocks = 0;
inode->i_mapping->backing_dev_info = &dlmfs_backing_dev_info;
inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME;
/* directory inodes start off with i_nlink ==
* 2 (for "." entry) */
- inode->i_nlink++;
+ inc_nlink(inode);
break;
}
struct qstr *domain = &dentry->d_name;
struct dlmfs_inode_private *ip;
struct dlm_ctxt *dlm;
+ struct dlm_protocol_version proto = user_locking_protocol;
mlog(0, "mkdir %.*s\n", domain->len, domain->name);
ip = DLMFS_I(inode);
- dlm = user_dlm_register_context(domain);
+ dlm = user_dlm_register_context(domain, &proto);
if (IS_ERR(dlm)) {
status = PTR_ERR(dlm);
mlog(ML_ERROR, "Error %d could not register domain \"%.*s\"\n",
}
ip->ip_dlm = dlm;
- dir->i_nlink++;
+ inc_nlink(dir);
d_instantiate(dentry, inode);
dget(dentry); /* Extra count - pin the dentry in core */
return 0;
}
-static struct file_operations dlmfs_file_operations = {
+static const struct file_operations dlmfs_file_operations = {
.open = dlmfs_file_open,
.release = dlmfs_file_release,
.read = dlmfs_file_read,
.write = dlmfs_file_write,
};
-static struct inode_operations dlmfs_dir_inode_operations = {
+static const struct inode_operations dlmfs_dir_inode_operations = {
.create = dlmfs_create,
.lookup = simple_lookup,
.unlink = dlmfs_unlink,
};
/* this way we can restrict mkdir to only the toplevel of the fs. */
-static struct inode_operations dlmfs_root_inode_operations = {
+static const struct inode_operations dlmfs_root_inode_operations = {
.lookup = simple_lookup,
.mkdir = dlmfs_mkdir,
.rmdir = simple_rmdir,
};
-static struct super_operations dlmfs_ops = {
+static const struct super_operations dlmfs_ops = {
.statfs = simple_statfs,
.alloc_inode = dlmfs_alloc_inode,
.destroy_inode = dlmfs_destroy_inode,
.drop_inode = generic_delete_inode,
};
-static struct inode_operations dlmfs_file_inode_operations = {
+static const struct inode_operations dlmfs_file_inode_operations = {
.getattr = simple_getattr,
};
dlmfs_print_version();
+ status = bdi_init(&dlmfs_backing_dev_info);
+ if (status)
+ return status;
+
dlmfs_inode_cache = kmem_cache_create("dlmfs_inode_cache",
sizeof(struct dlmfs_inode_private),
0, (SLAB_HWCACHE_ALIGN|SLAB_RECLAIM_ACCOUNT|
SLAB_MEM_SPREAD),
- dlmfs_init_once, NULL);
- if (!dlmfs_inode_cache)
- return -ENOMEM;
+ dlmfs_init_once);
+ if (!dlmfs_inode_cache) {
+ status = -ENOMEM;
+ goto bail;
+ }
cleanup_inode = 1;
user_dlm_worker = create_singlethread_workqueue("user_dlm");
kmem_cache_destroy(dlmfs_inode_cache);
if (cleanup_worker)
destroy_workqueue(user_dlm_worker);
+ bdi_destroy(&dlmfs_backing_dev_info);
} else
printk("OCFS2 User DLM kernel interface loaded\n");
return status;
flush_workqueue(user_dlm_worker);
destroy_workqueue(user_dlm_worker);
- if (kmem_cache_destroy(dlmfs_inode_cache))
- printk(KERN_INFO "dlmfs_inode_cache: not all structures "
- "were freed\n");
+ kmem_cache_destroy(dlmfs_inode_cache);
+
+ bdi_destroy(&dlmfs_backing_dev_info);
}
MODULE_AUTHOR("Oracle");
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff