X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=fs%2Fcoda%2Ffile.c;h=5ef2b609ec7dd3164f3f70bfac44a281105f2691;hb=af4864f83e4d2c06e4adfc7a1ac4b921c35e44c6;hp=768b2a1e57504d8ed9bfcbf617d4c1cb39bb111a;hpb=daddc0d38b3571bed170afa273a49a0eba090c1e;p=linux-2.6.git

diff --git a/fs/coda/file.c b/fs/coda/file.c
index 768b2a1e5..5ef2b609e 100644
--- a/fs/coda/file.c
+++ b/fs/coda/file.c
@@ -24,12 +24,14 @@
 #include <linux/coda_psdev.h>
 #include <linux/coda_proc.h>
 
+#include "coda_int.h"
+
 /* if CODA_STORE fails with EOPNOTSUPP, venus clearly doesn't support
  * CODA_STORE/CODA_RELEASE and we fall back on using the CODA_CLOSE upcall */
-int use_coda_close;
+static int use_coda_close;
 
 static ssize_t
-coda_file_read(struct file *coda_file, char *buf, size_t count, loff_t *ppos)
+coda_file_read(struct file *coda_file, char __user *buf, size_t count, loff_t *ppos)
 {
 	struct coda_file_info *cfi;
 	struct file *host_file;
@@ -45,9 +47,26 @@ coda_file_read(struct file *coda_file, char *buf, size_t count, loff_t *ppos)
 }
 
 static ssize_t
-coda_file_write(struct file *coda_file, const char *buf, size_t count, loff_t *ppos)
+coda_file_sendfile(struct file *coda_file, loff_t *ppos, size_t count,
+		   read_actor_t actor, void *target)
+{
+	struct coda_file_info *cfi;
+	struct file *host_file;
+
+	cfi = CODA_FTOC(coda_file);
+	BUG_ON(!cfi || cfi->cfi_magic != CODA_MAGIC);
+	host_file = cfi->cfi_container;
+
+	if (!host_file->f_op || !host_file->f_op->sendfile)
+		return -EINVAL;
+
+	return host_file->f_op->sendfile(host_file, ppos, count, actor, target);
+}
+
+static ssize_t
+coda_file_write(struct file *coda_file, const char __user *buf, size_t count, loff_t *ppos)
 {
-	struct inode *host_inode, *coda_inode = coda_file->f_dentry->d_inode;
+	struct inode *host_inode, *coda_inode = coda_file->f_path.dentry->d_inode;
 	struct coda_file_info *cfi;
 	struct file *host_file;
 	ssize_t ret;
@@ -59,15 +78,15 @@ coda_file_write(struct file *coda_file, const char *buf, size_t count, loff_t *p
 	if (!host_file->f_op || !host_file->f_op->write)
 		return -EINVAL;
 
-	host_inode = host_file->f_dentry->d_inode;
-	down(&coda_inode->i_sem);
+	host_inode = host_file->f_path.dentry->d_inode;
+	mutex_lock(&coda_inode->i_mutex);
 
 	ret = host_file->f_op->write(host_file, buf, count, ppos);
 
 	coda_inode->i_size = host_inode->i_size;
 	coda_inode->i_blocks = (coda_inode->i_size + 511) >> 9;
-	coda_inode->i_mtime = coda_inode->i_ctime = CURRENT_TIME;
-	up(&coda_inode->i_sem);
+	coda_inode->i_mtime = coda_inode->i_ctime = CURRENT_TIME_SEC;
+	mutex_unlock(&coda_inode->i_mutex);
 
 	return ret;
 }
@@ -87,8 +106,8 @@ coda_file_mmap(struct file *coda_file, struct vm_area_struct *vma)
 	if (!host_file->f_op || !host_file->f_op->mmap)
 		return -ENODEV;
 
-	coda_inode = coda_file->f_dentry->d_inode;
-	host_inode = host_file->f_dentry->d_inode;
+	coda_inode = coda_file->f_path.dentry->d_inode;
+	host_inode = host_file->f_path.dentry->d_inode;
 	coda_file->f_mapping = host_file->f_mapping;
 	if (coda_inode->i_mapping == &coda_inode->i_data)
 		coda_inode->i_mapping = host_inode->i_mapping;
@@ -117,10 +136,8 @@ int coda_open(struct inode *coda_inode, struct file *coda_file)
 	coda_vfs_stat.open++;
 
 	cfi = kmalloc(sizeof(struct coda_file_info), GFP_KERNEL);
-	if (!cfi) {
-		unlock_kernel();
+	if (!cfi)
 		return -ENOMEM;
-	}
 
 	lock_kernel();
 
@@ -145,7 +162,7 @@ int coda_open(struct inode *coda_inode, struct file *coda_file)
 	return 0;
 }
 
-int coda_flush(struct file *coda_file)
+int coda_flush(struct file *coda_file, fl_owner_t id)
 {
 	unsigned short flags = coda_file->f_flags & ~O_EXCL;
 	unsigned short coda_flags = coda_flags_to_cflags(flags);
@@ -173,7 +190,7 @@ int coda_flush(struct file *coda_file)
 	cfi = CODA_FTOC(coda_file);
 	BUG_ON(!cfi || cfi->cfi_magic != CODA_MAGIC);
 
-	coda_inode = coda_file->f_dentry->d_inode;
+	coda_inode = coda_file->f_path.dentry->d_inode;
 
 	err = venus_store(coda_inode->i_sb, coda_i2f(coda_inode), coda_flags,
 			  coda_file->f_uid);
@@ -216,7 +233,7 @@ int coda_release(struct inode *coda_inode, struct file *coda_file)
 		err = venus_close(coda_inode->i_sb, coda_i2f(coda_inode),
 				  coda_flags, coda_file->f_uid);
 
-	host_inode = cfi->cfi_container->f_dentry->d_inode;
+	host_inode = cfi->cfi_container->f_path.dentry->d_inode;
 	cii = ITOC(coda_inode);
 
 	/* did we mmap this file? */
@@ -253,11 +270,11 @@ int coda_fsync(struct file *coda_file, struct dentry *coda_dentry, int datasync)
 	coda_vfs_stat.fsync++;
 
 	if (host_file->f_op && host_file->f_op->fsync) {
-		host_dentry = host_file->f_dentry;
+		host_dentry = host_file->f_path.dentry;
 		host_inode = host_dentry->d_inode;
-		down(&host_inode->i_sem);
+		mutex_lock(&host_inode->i_mutex);
 		err = host_file->f_op->fsync(host_file, host_dentry, datasync);
-		up(&host_inode->i_sem);
+		mutex_unlock(&host_inode->i_mutex);
 	}
 
 	if ( !err && !datasync ) {
@@ -269,7 +286,7 @@ int coda_fsync(struct file *coda_file, struct dentry *coda_dentry, int datasync)
 	return err;
 }
 
-struct file_operations coda_file_operations = {
+const struct file_operations coda_file_operations = {
 	.llseek		= generic_file_llseek,
 	.read		= coda_file_read,
 	.write		= coda_file_write,
@@ -278,5 +295,6 @@ struct file_operations coda_file_operations = {
 	.flush		= coda_flush,
 	.release	= coda_release,
 	.fsync		= coda_fsync,
+	.sendfile	= coda_file_sendfile,
 };