#include <linux/smp_lock.h>
#include <linux/obd_support.h>
-#include <linux/obd_sim.h>
+#include <linux/obd_ext2.h>
#include <linux/obdfs.h>
int console_loglevel;
}
/* returns the page unlocked, but with a reference */
-static int obdfs_writepage(struct dentry *dentry, struct page *page)
+int obdfs_writepage(struct dentry *dentry, struct page *page)
{
struct inode *inode = dentry->d_inode;
int rc;
status = -EFAULT;
if (bytes) {
-
lock_kernel();
status = obdfs_writepage(file->f_dentry, page);
unlock_kernel();
CDEBUG(D_INODE, "page_cache %p\n", page_cache);
hash = page_hash(&inode->i_data, offset);
- repeat:
- CDEBUG(D_INODE, "Finding page\n");
- IDEBUG(inode);
-
- page = __find_lock_page(&inode->i_data, offset, hash);
- if ( page ) {
- CDEBUG(D_INODE, "Page found freeing\n");
- page_cache_free(page_cache);
- } else {
- page = page_cache;
- if ( page->buffers ) {
- PDEBUG(page, "GETPAGE: buffers bug\n");
- UnlockPage(page);
- return NULL;
- }
- if (add_to_page_cache_unique(page, &inode->i_data, offset, hash)) {
- page_cache_release(page);
- CDEBUG(D_INODE, "Someone raced: try again\n");
- goto repeat;
- }
- }
+ page = grab_cache_page(&inode->i_data, offset);
PDEBUG(page, "GETPAGE: got page - before reading\n");
/* now check if the data in the page is up to date */
if (! page) {
printk("get_page_map says no dice ...\n");
return 0;
- }
-
-
+ }
rc = iops(inode)->o_brw(READ, iid(inode), inode, page, create);
if ( rc != PAGE_SIZE ) {
}
-struct file_operations obdfs_file_ops = {
- NULL, /* lseek - default */
- generic_file_read, /* read */
- obdfs_file_write, /* write - bad */
- obdfs_readdir, /* readdir */
- NULL, /* poll - default */
- NULL, /* ioctl */
- NULL, /* mmap */
- NULL, /* no special open code */
- NULL, /* flush */
- NULL, /* no special release code */
- NULL, /* fsync */
- NULL, /* fasync */
- NULL, /* check_media_change */
- NULL /* revalidate */
-};
-
-struct inode_operations obdfs_inode_ops = {
- &obdfs_file_ops, /* default directory file-ops */
- obdfs_create, /* create */
- obdfs_lookup, /* lookup */
- obdfs_link, /* link */
- obdfs_unlink, /* unlink */
- obdfs_symlink, /* symlink */
- obdfs_mkdir, /* mkdir */
- obdfs_rmdir, /* rmdir */
- obdfs_mknod, /* mknod */
- obdfs_rename, /* rename */
- NULL, /* readlink */
- NULL, /* follow_link */
- NULL, /* get_block */
- obdfs_readpage, /* readpage */
- obdfs_writepage, /* writepage */
- NULL, /* flushpage */
- NULL, /* truncate */
- NULL, /* permission */
- NULL, /* smap */
- NULL /* revalidate */
-};