Merge master.kernel.org:/pub/scm/linux/kernel/git/holtmann/bluetooth-2.6

[linux-2.6-omap-h63xx.git] / fs / nfs / file.c

diff --git a/fs/nfs/file.c b/fs/nfs/file.c
index 9eb8eb4e4a08df9db62c8301d8c4622df45bf10c..579cf8a7d4a75177a0a04a3baf615c0aa1ac4494 100644 (file)
--- a/fs/nfs/file.c
+++ b/fs/nfs/file.c
@@ -41,7 +41,9 @@ static int nfs_file_open(struct inode *, struct file *);
 static int nfs_file_release(struct inode *, struct file *);
 static loff_t nfs_file_llseek(struct file *file, loff_t offset, int origin);
 static int  nfs_file_mmap(struct file *, struct vm_area_struct *);
-static ssize_t nfs_file_sendfile(struct file *, loff_t *, size_t, read_actor_t, void *);
+static ssize_t nfs_file_splice_read(struct file *filp, loff_t *ppos,
+                                       struct pipe_inode_info *pipe,
+                                       size_t count, unsigned int flags);
 static ssize_t nfs_file_read(struct kiocb *, const struct iovec *iov,
                                unsigned long nr_segs, loff_t pos);
 static ssize_t nfs_file_write(struct kiocb *, const struct iovec *iov,
@@ -51,6 +53,7 @@ static int  nfs_fsync(struct file *, struct dentry *dentry, int datasync);
 static int nfs_check_flags(int flags);
 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);
+static int nfs_setlease(struct file *file, long arg, struct file_lock **fl);
 
 const struct file_operations nfs_file_operations = {
        .llseek         = nfs_file_llseek,
@@ -65,8 +68,9 @@ const struct file_operations nfs_file_operations = {
        .fsync          = nfs_fsync,
        .lock           = nfs_lock,
        .flock          = nfs_flock,
-       .sendfile       = nfs_file_sendfile,
+       .splice_read    = nfs_file_splice_read,
        .check_flags    = nfs_check_flags,
+       .setlease       = nfs_setlease,
 };
 
 const struct inode_operations nfs_file_inode_operations = {
@@ -224,20 +228,21 @@ nfs_file_read(struct kiocb *iocb, const struct iovec *iov,
 }
 
 static ssize_t
-nfs_file_sendfile(struct file *filp, loff_t *ppos, size_t count,
-               read_actor_t actor, void *target)
+nfs_file_splice_read(struct file *filp, loff_t *ppos,
+                    struct pipe_inode_info *pipe, size_t count,
+                    unsigned int flags)
 {
        struct dentry *dentry = filp->f_path.dentry;
        struct inode *inode = dentry->d_inode;
        ssize_t res;
 
-       dfprintk(VFS, "nfs: sendfile(%s/%s, %lu@%Lu)\n",
+       dfprintk(VFS, "nfs: splice_read(%s/%s, %lu@%Lu)\n",
                dentry->d_parent->d_name.name, dentry->d_name.name,
                (unsigned long) count, (unsigned long long) *ppos);
 
        res = nfs_revalidate_mapping(inode, filp->f_mapping);
        if (!res)
-               res = generic_file_sendfile(filp, ppos, count, actor, target);
+               res = generic_file_splice_read(filp, ppos, pipe, count, flags);
        return res;
 }
 
@@ -311,7 +316,7 @@ static void nfs_invalidate_page(struct page *page, unsigned long offset)
        if (offset != 0)
                return;
        /* Cancel any unstarted writes on this page */
-       nfs_wb_page_priority(page->mapping->host, page, FLUSH_INVALIDATE);
+       nfs_wb_page_cancel(page->mapping->host, page);
 }
 
 static int nfs_release_page(struct page *page, gfp_t gfp)
@@ -397,7 +402,9 @@ static int do_getlk(struct file *filp, int cmd, struct file_lock *fl)
 
        lock_kernel();
        /* Try local locking first */
-       if (posix_test_lock(filp, fl)) {
+       posix_test_lock(filp, fl);
+       if (fl->fl_type != F_UNLCK) {
+               /* found a conflict */
                goto out;
        }
 
@@ -555,3 +562,13 @@ static int nfs_flock(struct file *filp, int cmd, struct file_lock *fl)
                return do_unlk(filp, cmd, fl);
        return do_setlk(filp, cmd, fl);
 }
+
+static int nfs_setlease(struct file *file, long arg, struct file_lock **fl)
+{
+       /*
+        * There is no protocol support for leases, so we have no way
+        * to implement them correctly in the face of opens by other
+        * clients.
+        */
+       return -EINVAL;
+}