[S390] vmcp cleanup

[linux-2.6] / fs / fuse / file.c

diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index 763a50daf1c0a7cc7c336a0d2ba99a64e7baeb1c..f79de7c8cdfaae3260009c86127f88ae4283cc22 100644 (file)
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -11,6 +11,7 @@
 #include <linux/pagemap.h>
 #include <linux/slab.h>
 #include <linux/kernel.h>
+#include <linux/sched.h>
 
 static const struct file_operations fuse_direct_io_file_operations;
 
@@ -69,7 +70,7 @@ void fuse_finish_open(struct inode *inode, struct file *file,
        if (outarg->open_flags & FOPEN_DIRECT_IO)
                file->f_op = &fuse_direct_io_file_operations;
        if (!(outarg->open_flags & FOPEN_KEEP_CACHE))
-               invalidate_inode_pages(inode->i_mapping);
+               invalidate_mapping_pages(inode->i_mapping, 0, -1);
        ff->fh = outarg->fh;
        file->private_data = ff;
 }
@@ -141,8 +142,8 @@ int fuse_release_common(struct inode *inode, struct file *file, int isdir)
                                        isdir ? FUSE_RELEASEDIR : FUSE_RELEASE);
 
                /* Hold vfsmount and dentry until release is finished */
-               req->vfsmount = mntget(file->f_vfsmnt);
-               req->dentry = dget(file->f_dentry);
+               req->vfsmount = mntget(file->f_path.mnt);
+               req->dentry = dget(file->f_path.dentry);
                request_send_background(fc, req);
        }
 
@@ -184,7 +185,7 @@ static u64 fuse_lock_owner_id(struct fuse_conn *fc, fl_owner_t id)
 
 static int fuse_flush(struct file *file, fl_owner_t id)
 {
-       struct inode *inode = file->f_dentry->d_inode;
+       struct inode *inode = file->f_path.dentry->d_inode;
        struct fuse_conn *fc = get_fuse_conn(inode);
        struct fuse_file *ff = file->private_data;
        struct fuse_req *req;
@@ -483,10 +484,8 @@ static int fuse_commit_write(struct file *file, struct page *page,
                        i_size_write(inode, pos);
                spin_unlock(&fc->lock);
 
-               if (offset == 0 && to == PAGE_CACHE_SIZE) {
-                       clear_page_dirty(page);
+               if (offset == 0 && to == PAGE_CACHE_SIZE)
                        SetPageUptodate(page);
-               }
        }
        fuse_invalidate_attr(inode);
        return err;
@@ -533,7 +532,7 @@ static int fuse_get_user_pages(struct fuse_req *req, const char __user *buf,
 static ssize_t fuse_direct_io(struct file *file, const char __user *buf,
                              size_t count, loff_t *ppos, int write)
 {
-       struct inode *inode = file->f_dentry->d_inode;
+       struct inode *inode = file->f_path.dentry->d_inode;
        struct fuse_conn *fc = get_fuse_conn(inode);
        size_t nmax = write ? fc->max_write : fc->max_read;
        loff_t pos = *ppos;
@@ -607,11 +606,13 @@ static ssize_t fuse_direct_read(struct file *file, char __user *buf,
 static ssize_t fuse_direct_write(struct file *file, const char __user *buf,
                                 size_t count, loff_t *ppos)
 {
-       struct inode *inode = file->f_dentry->d_inode;
+       struct inode *inode = file->f_path.dentry->d_inode;
        ssize_t res;
        /* Don't allow parallel writes to the same file */
        mutex_lock(&inode->i_mutex);
-       res = fuse_direct_io(file, buf, count, ppos, 1);
+       res = generic_write_checks(file, ppos, &count, 0);
+       if (!res)
+               res = fuse_direct_io(file, buf, count, ppos, 1);
        mutex_unlock(&inode->i_mutex);
        return res;
 }
@@ -662,7 +663,7 @@ static int convert_fuse_file_lock(const struct fuse_file_lock *ffl,
 static void fuse_lk_fill(struct fuse_req *req, struct file *file,
                         const struct file_lock *fl, int opcode, pid_t pid)
 {
-       struct inode *inode = file->f_dentry->d_inode;
+       struct inode *inode = file->f_path.dentry->d_inode;
        struct fuse_conn *fc = get_fuse_conn(inode);
        struct fuse_file *ff = file->private_data;
        struct fuse_lk_in *arg = &req->misc.lk_in;
@@ -682,7 +683,7 @@ static void fuse_lk_fill(struct fuse_req *req, struct file *file,
 
 static int fuse_getlk(struct file *file, struct file_lock *fl)
 {
-       struct inode *inode = file->f_dentry->d_inode;
+       struct inode *inode = file->f_path.dentry->d_inode;
        struct fuse_conn *fc = get_fuse_conn(inode);
        struct fuse_req *req;
        struct fuse_lk_out outarg;
@@ -707,7 +708,7 @@ static int fuse_getlk(struct file *file, struct file_lock *fl)
 
 static int fuse_setlk(struct file *file, struct file_lock *fl)
 {
-       struct inode *inode = file->f_dentry->d_inode;
+       struct inode *inode = file->f_path.dentry->d_inode;
        struct fuse_conn *fc = get_fuse_conn(inode);
        struct fuse_req *req;
        int opcode = (fl->fl_flags & FL_SLEEP) ? FUSE_SETLKW : FUSE_SETLK;
@@ -734,14 +735,13 @@ static int fuse_setlk(struct file *file, struct file_lock *fl)
 
 static int fuse_file_lock(struct file *file, int cmd, struct file_lock *fl)
 {
-       struct inode *inode = file->f_dentry->d_inode;
+       struct inode *inode = file->f_path.dentry->d_inode;
        struct fuse_conn *fc = get_fuse_conn(inode);
        int err;
 
        if (cmd == F_GETLK) {
                if (fc->no_lock) {
-                       if (!posix_test_lock(file, fl, fl))
-                               fl->fl_type = F_UNLCK;
+                       posix_test_lock(file, fl);
                        err = 0;
                } else
                        err = fuse_getlk(file, fl);
@@ -754,6 +754,42 @@ static int fuse_file_lock(struct file *file, int cmd, struct file_lock *fl)
        return err;
 }
 
+static sector_t fuse_bmap(struct address_space *mapping, sector_t block)
+{
+       struct inode *inode = mapping->host;
+       struct fuse_conn *fc = get_fuse_conn(inode);
+       struct fuse_req *req;
+       struct fuse_bmap_in inarg;
+       struct fuse_bmap_out outarg;
+       int err;
+
+       if (!inode->i_sb->s_bdev || fc->no_bmap)
+               return 0;
+
+       req = fuse_get_req(fc);
+       if (IS_ERR(req))
+               return 0;
+
+       memset(&inarg, 0, sizeof(inarg));
+       inarg.block = block;
+       inarg.blocksize = inode->i_sb->s_blocksize;
+       req->in.h.opcode = FUSE_BMAP;
+       req->in.h.nodeid = get_node_id(inode);
+       req->in.numargs = 1;
+       req->in.args[0].size = sizeof(inarg);
+       req->in.args[0].value = &inarg;
+       req->out.numargs = 1;
+       req->out.args[0].size = sizeof(outarg);
+       req->out.args[0].value = &outarg;
+       request_send(fc, req);
+       err = req->out.h.error;
+       fuse_put_request(fc, req);
+       if (err == -ENOSYS)
+               fc->no_bmap = 1;
+
+       return err ? 0 : outarg.block;
+}
+
 static const struct file_operations fuse_file_operations = {
        .llseek         = generic_file_llseek,
        .read           = do_sync_read,
@@ -766,7 +802,7 @@ static const struct file_operations fuse_file_operations = {
        .release        = fuse_release,
        .fsync          = fuse_fsync,
        .lock           = fuse_file_lock,
-       .sendfile       = generic_file_sendfile,
+       .splice_read    = generic_file_splice_read,
 };
 
 static const struct file_operations fuse_direct_io_file_operations = {
@@ -778,7 +814,7 @@ static const struct file_operations fuse_direct_io_file_operations = {
        .release        = fuse_release,
        .fsync          = fuse_fsync,
        .lock           = fuse_file_lock,
-       /* no mmap and sendfile */
+       /* no mmap and splice_read */
 };
 
 static const struct address_space_operations fuse_file_aops  = {
@@ -787,6 +823,7 @@ static const struct address_space_operations fuse_file_aops  = {
        .commit_write   = fuse_commit_write,
        .readpages      = fuse_readpages,
        .set_page_dirty = fuse_set_page_dirty,
+       .bmap           = fuse_bmap,
 };
 
 void fuse_init_file_inode(struct inode *inode)