Merge ../linux-2.6-watchdog-mm

[pandora-kernel.git] / fs / nfs / file.c

diff --git a/fs/nfs/file.c b/fs/nfs/file.c
index cc93865..9e4a2b7 100644 (file)
--- a/fs/nfs/file.c
+++ b/fs/nfs/file.c
@@ -176,7 +176,7 @@ static int
 nfs_file_flush(struct file *file, fl_owner_t id)
 {
        struct nfs_open_context *ctx = (struct nfs_open_context *)file->private_data;
-       struct inode    *inode = file->f_dentry->d_inode;
+       struct inode    *inode = file->f_path.dentry->d_inode;
        int             status;
 
        dfprintk(VFS, "nfs: flush(%s/%ld)\n", inode->i_sb->s_id, inode->i_ino);
@@ -201,7 +201,7 @@ static ssize_t
 nfs_file_read(struct kiocb *iocb, const struct iovec *iov,
                unsigned long nr_segs, loff_t pos)
 {
-       struct dentry * dentry = iocb->ki_filp->f_dentry;
+       struct dentry * dentry = iocb->ki_filp->f_path.dentry;
        struct inode * inode = dentry->d_inode;
        ssize_t result;
        size_t count = iov_length(iov, nr_segs);
@@ -226,7 +226,7 @@ static ssize_t
 nfs_file_sendfile(struct file *filp, loff_t *ppos, size_t count,
                read_actor_t actor, void *target)
 {
-       struct dentry *dentry = filp->f_dentry;
+       struct dentry *dentry = filp->f_path.dentry;
        struct inode *inode = dentry->d_inode;
        ssize_t res;
 
@@ -243,7 +243,7 @@ nfs_file_sendfile(struct file *filp, loff_t *ppos, size_t count,
 static int
 nfs_file_mmap(struct file * file, struct vm_area_struct * vma)
 {
-       struct dentry *dentry = file->f_dentry;
+       struct dentry *dentry = file->f_path.dentry;
        struct inode *inode = dentry->d_inode;
        int     status;
 
@@ -307,28 +307,27 @@ static int nfs_commit_write(struct file *file, struct page *page, unsigned offse
 
 static void nfs_invalidate_page(struct page *page, unsigned long offset)
 {
-       struct inode *inode = page->mapping->host;
-
+       if (offset != 0)
+               return;
        /* Cancel any unstarted writes on this page */
-       if (offset == 0)
-               nfs_sync_inode_wait(inode, page->index, 1, FLUSH_INVALIDATE);
+       nfs_wb_page_priority(page->mapping->host, page, FLUSH_INVALIDATE);
 }
 
 static int nfs_release_page(struct page *page, gfp_t gfp)
 {
-       if (gfp & __GFP_FS)
-               return !nfs_wb_page(page->mapping->host, page);
-       else
-               /*
-                * Avoid deadlock on nfs_wait_on_request().
-                */
-               return 0;
+       /* If PagePrivate() is set, then the page is not freeable */
+       return 0;
+}
+
+static int nfs_launder_page(struct page *page)
+{
+       return nfs_wb_page(page->mapping->host, page);
 }
 
 const struct address_space_operations nfs_file_aops = {
        .readpage = nfs_readpage,
        .readpages = nfs_readpages,
-       .set_page_dirty = __set_page_dirty_nobuffers,
+       .set_page_dirty = nfs_set_page_dirty,
        .writepage = nfs_writepage,
        .writepages = nfs_writepages,
        .prepare_write = nfs_prepare_write,
@@ -338,12 +337,13 @@ const struct address_space_operations nfs_file_aops = {
 #ifdef CONFIG_NFS_DIRECTIO
        .direct_IO = nfs_direct_IO,
 #endif
+       .launder_page = nfs_launder_page,
 };
 
 static ssize_t nfs_file_write(struct kiocb *iocb, const struct iovec *iov,
                                unsigned long nr_segs, loff_t pos)
 {
-       struct dentry * dentry = iocb->ki_filp->f_dentry;
+       struct dentry * dentry = iocb->ki_filp->f_path.dentry;
        struct inode * inode = dentry->d_inode;
        ssize_t result;
        size_t count = iov_length(iov, nr_segs);
@@ -375,6 +375,12 @@ static ssize_t nfs_file_write(struct kiocb *iocb, const struct iovec *iov,
 
        nfs_add_stats(inode, NFSIOS_NORMALWRITTENBYTES, count);
        result = generic_file_aio_write(iocb, iov, nr_segs, pos);
+       /* Return error values for O_SYNC and IS_SYNC() */
+       if (result >= 0 && (IS_SYNC(inode) || (iocb->ki_filp->f_flags & O_SYNC))) {
+               int err = nfs_fsync(iocb->ki_filp, dentry, 1);
+               if (err < 0)
+                       result = err;
+       }
 out:
        return result;
 
@@ -428,8 +434,9 @@ static int do_vfs_lock(struct file *file, struct file_lock *fl)
                        BUG();
        }
        if (res < 0)
-               printk(KERN_WARNING "%s: VFS is out of sync with lock manager!\n",
-                               __FUNCTION__);
+               dprintk(KERN_WARNING "%s: VFS is out of sync with lock manager"
+                       " - error %d!\n",
+                               __FUNCTION__, res);
        return res;
 }
 
@@ -529,8 +536,8 @@ static int nfs_lock(struct file *filp, int cmd, struct file_lock *fl)
 static int nfs_flock(struct file *filp, int cmd, struct file_lock *fl)
 {
        dprintk("NFS: nfs_flock(f=%s/%ld, t=%x, fl=%x)\n",
-                       filp->f_dentry->d_inode->i_sb->s_id,
-                       filp->f_dentry->d_inode->i_ino,
+                       filp->f_path.dentry->d_inode->i_sb->s_id,
+                       filp->f_path.dentry->d_inode->i_ino,
                        fl->fl_type, fl->fl_flags);
 
        /*