#define NFSDBG_FACILITY NFSDBG_VFS
-static kmem_cache_t *nfs_direct_cachep;
+static struct kmem_cache *nfs_direct_cachep;
/*
* This represents a set of asynchronous requests that we're waiting on
ssize_t nfs_direct_IO(int rw, struct kiocb *iocb, const struct iovec *iov, loff_t pos, unsigned long nr_segs)
{
dprintk("NFS: nfs_direct_IO (%s) off/no(%Ld/%lu) EINVAL\n",
- iocb->ki_filp->f_dentry->d_name.name,
+ iocb->ki_filp->f_path.dentry->d_name.name,
(long long) pos, nr_segs);
return -EINVAL;
{
struct nfs_direct_req *dreq;
- dreq = kmem_cache_alloc(nfs_direct_cachep, SLAB_KERNEL);
+ dreq = kmem_cache_alloc(nfs_direct_cachep, GFP_KERNEL);
if (!dreq)
return NULL;
data->task.tk_cookie = (unsigned long) inode;
- lock_kernel();
rpc_execute(&data->task);
- unlock_kernel();
dfprintk(VFS, "NFS: %5u initiated direct read call (req %s/%Ld, %zu bytes @ offset %Lu)\n",
data->task.tk_pid,
dprintk("NFS: %5u initiated commit call\n", data->task.tk_pid);
- lock_kernel();
rpc_execute(&data->task);
- unlock_kernel();
}
static void nfs_direct_write_complete(struct nfs_direct_req *dreq, struct inode *inode)
if (dreq->commit_data != NULL)
nfs_commit_free(dreq->commit_data);
nfs_direct_free_writedata(dreq);
+ nfs_zap_mapping(inode, inode->i_mapping);
nfs_direct_complete(dreq);
}
}
{
nfs_end_data_update(inode);
nfs_direct_free_writedata(dreq);
+ nfs_zap_mapping(inode, inode->i_mapping);
nfs_direct_complete(dreq);
}
#endif
data->task.tk_priority = RPC_PRIORITY_NORMAL;
data->task.tk_cookie = (unsigned long) inode;
- lock_kernel();
rpc_execute(&data->task);
- unlock_kernel();
dfprintk(VFS, "NFS: %5u initiated direct write call (req %s/%Ld, %zu bytes @ offset %Lu)\n",
data->task.tk_pid,
/**
* nfs_file_direct_read - file direct read operation for NFS files
* @iocb: target I/O control block
- * @buf: user's buffer into which to read data
- * @count: number of bytes to read
+ * @iov: vector of user buffers into which to read data
+ * @nr_segs: size of iov vector
* @pos: byte offset in file where reading starts
*
* We use this function for direct reads instead of calling
* client must read the updated atime from the server back into its
* cache.
*/
-ssize_t nfs_file_direct_read(struct kiocb *iocb, char __user *buf, size_t count, loff_t pos)
+ssize_t nfs_file_direct_read(struct kiocb *iocb, const struct iovec *iov,
+ unsigned long nr_segs, loff_t pos)
{
ssize_t retval = -EINVAL;
struct file *file = iocb->ki_filp;
struct address_space *mapping = file->f_mapping;
+ /* XXX: temporary */
+ const char __user *buf = iov[0].iov_base;
+ size_t count = iov[0].iov_len;
dprintk("nfs: direct read(%s/%s, %lu@%Ld)\n",
- file->f_dentry->d_parent->d_name.name,
- file->f_dentry->d_name.name,
+ file->f_path.dentry->d_parent->d_name.name,
+ file->f_path.dentry->d_name.name,
(unsigned long) count, (long long) pos);
+ if (nr_segs != 1)
+ return -EINVAL;
+
if (count < 0)
goto out;
retval = -EFAULT;
/**
* nfs_file_direct_write - file direct write operation for NFS files
* @iocb: target I/O control block
- * @buf: user's buffer from which to write data
- * @count: number of bytes to write
+ * @iov: vector of user buffers from which to write data
+ * @nr_segs: size of iov vector
* @pos: byte offset in file where writing starts
*
* We use this function for direct writes instead of calling
* Note that O_APPEND is not supported for NFS direct writes, as there
* is no atomic O_APPEND write facility in the NFS protocol.
*/
-ssize_t nfs_file_direct_write(struct kiocb *iocb, const char __user *buf, size_t count, loff_t pos)
+ssize_t nfs_file_direct_write(struct kiocb *iocb, const struct iovec *iov,
+ unsigned long nr_segs, loff_t pos)
{
ssize_t retval;
struct file *file = iocb->ki_filp;
struct address_space *mapping = file->f_mapping;
+ /* XXX: temporary */
+ const char __user *buf = iov[0].iov_base;
+ size_t count = iov[0].iov_len;
dfprintk(VFS, "nfs: direct write(%s/%s, %lu@%Ld)\n",
- file->f_dentry->d_parent->d_name.name,
- file->f_dentry->d_name.name,
+ file->f_path.dentry->d_parent->d_name.name,
+ file->f_path.dentry->d_name.name,
(unsigned long) count, (long long) pos);
+ if (nr_segs != 1)
+ return -EINVAL;
+
retval = generic_write_checks(file, &pos, &count, 0);
if (retval)
goto out;
retval = nfs_direct_write(iocb, (unsigned long) buf, count, pos);
- /*
- * XXX: nfs_end_data_update() already ensures this file's
- * cached data is subsequently invalidated. Do we really
- * need to call invalidate_inode_pages2() again here?
- *
- * For aio writes, this invalidation will almost certainly
- * occur before the writes complete. Kind of racey.
- */
- if (mapping->nrpages)
- invalidate_inode_pages2(mapping);
-
if (retval > 0)
iocb->ki_pos = pos + retval;
*/
void nfs_destroy_directcache(void)
{
- if (kmem_cache_destroy(nfs_direct_cachep))
- printk(KERN_INFO "nfs_direct_cache: not all structures were freed\n");
+ kmem_cache_destroy(nfs_direct_cachep);
}
git://git.onelab.eu / linux-2.6.git / blobdiff