void fuse_change_attributes(struct inode *inode, struct fuse_attr *attr)
{
if (S_ISREG(inode->i_mode) && i_size_read(inode) != attr->size)
#ifdef KERNEL_2_6
invalidate_inode_pages(inode->i_mapping);
#else
invalidate_inode_pages(inode);
#endif
inode->i_ino = attr->ino;
inode->i_mode = (inode->i_mode & S_IFMT) + (attr->mode & 07777);
inode->i_nlink = attr->nlink;
inode->i_uid = attr->uid;
inode->i_gid = attr->gid;
i_size_write(inode, attr->size);
inode->i_blksize = PAGE_CACHE_SIZE;
inode->i_blocks = attr->blocks;
#ifdef KERNEL_2_6
inode->i_atime.tv_sec = attr->atime;
inode->i_atime.tv_nsec = attr->atimensec;
inode->i_mtime.tv_sec = attr->mtime;
inode->i_mtime.tv_nsec = attr->mtimensec;
inode->i_ctime.tv_sec = attr->ctime;
inode->i_ctime.tv_nsec = attr->ctimensec;
#else
inode->i_atime = attr->atime;
inode->i_mtime = attr->mtime;
inode->i_ctime = attr->ctime;
#endif
}
void nilfs_btnode_cache_clear(struct address_space *btnc)
{
#if NEED_INVALIDATE_INODE_PAGES
invalidate_inode_pages(btnc);
#else
invalidate_mapping_pages(btnc, 0, -1);
#endif
truncate_inode_pages(btnc, 0);
}
void fuse_finish_open(struct inode *inode, struct file *file,
struct fuse_file *ff, struct fuse_open_out *outarg)
{
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);
ff->fh = outarg->fh;
file->private_data = ff;
}
/*
* Invalidate the local caches
*/
static void
nfs_zap_caches(struct inode *inode)
{
NFS_ATTRTIMEO(inode) = NFS_MINATTRTIMEO(inode);
NFS_CACHEINV(inode);
if (S_ISDIR(inode->i_mode))
nfs_invalidate_dircache(inode);
else
invalidate_inode_pages(inode);
}
void
smb_invalid_dir_cache(struct inode * dir)
{
/*
* Get rid of any unlocked pages, and clear the
* 'valid' flag in case a scan is in progress.
*/
invalidate_inode_pages(dir);
dir->u.smbfs_i.cache_valid &= ~SMB_F_CACHEVALID;
dir->u.smbfs_i.oldmtime = 0;
}
/* Now we cache directories properly, by stuffing the dirent
* data directly in the page cache.
*
* Inode invalidation due to refresh etc. takes care of
* _everything_, no sloppy entry flushing logic, no extraneous
* copying, network direct to page cache, the way it was meant
* to be.
*
* NOTE: Dirent information verification is done always by the
* page-in of the RPC reply, nowhere else, this simplies
* things substantially.
*/
static
int nfs_readdir_filler(nfs_readdir_descriptor_t *desc, struct page *page)
{
struct file *file = desc->file;
struct inode *inode = file->f_dentry->d_inode;
struct rpc_cred *cred = nfs_file_cred(file);
void *buffer = kmap(page);
int error;
dfprintk(VFS, "NFS: nfs_readdir_filler() reading cookie %Lu into page %lu.\n", (long long)desc->entry->cookie, page->index);
again:
error = NFS_PROTO(inode)->readdir(inode, cred, desc->entry->cookie, buffer,
NFS_SERVER(inode)->dtsize, desc->plus);
/* We requested READDIRPLUS, but the server doesn't grok it */
if (desc->plus && error == -ENOTSUPP) {
NFS_FLAGS(inode) &= ~NFS_INO_ADVISE_RDPLUS;
desc->plus = 0;
goto again;
}
if (error < 0)
goto error;
SetPageUptodate(page);
kunmap(page);
/* Ensure consistent page alignment of the data.
* Note: assumes we have exclusive access to this mapping either
* throught inode->i_sem or some other mechanism.
*/
if (page->index == 0)
invalidate_inode_pages(inode);
UnlockPage(page);
return 0;
error:
SetPageError(page);
kunmap(page);
UnlockPage(page);
invalidate_inode_pages(inode);
desc->error = error;
return -EIO;
}
static void free_device(struct blkmtd_dev *dev)
{
DEBUG(2, "blkmtd: free_device() dev = %p\n", dev);
if(dev) {
if(dev->mtd_info.eraseregions)
kfree(dev->mtd_info.eraseregions);
if(dev->mtd_info.name)
kfree(dev->mtd_info.name);
if(dev->blkdev) {
invalidate_inode_pages(dev->blkdev->bd_inode->i_mapping);
close_bdev_excl(dev->blkdev);
}
kfree(dev);
}
}
/* Now we cache directories properly, by stuffing the dirent
* data directly in the page cache.
*
* Inode invalidation due to refresh etc. takes care of
* _everything_, no sloppy entry flushing logic, no extraneous
* copying, network direct to page cache, the way it was meant
* to be.
*
* NOTE: Dirent information verification is done always by the
* page-in of the RPC reply, nowhere else, this simplies
* things substantially.
*/
static
int nfs_readdir_filler(nfs_readdir_descriptor_t *desc, struct page *page)
{
struct file *file = desc->file;
struct inode *inode = file->f_dentry->d_inode;
struct rpc_cred *cred = nfs_file_cred(file);
unsigned long timestamp;
int error;
dfprintk(VFS, "NFS: nfs_readdir_filler() reading cookie %Lu into page %lu.\n", (long long)desc->entry->cookie, page->index);
again:
timestamp = jiffies;
error = NFS_PROTO(inode)->readdir(file->f_dentry, cred, desc->entry->cookie, page,
NFS_SERVER(inode)->dtsize, desc->plus);
if (error < 0) {
/* We requested READDIRPLUS, but the server doesn't grok it */
if (error == -ENOTSUPP && desc->plus) {
NFS_SERVER(inode)->caps &= ~NFS_CAP_READDIRPLUS;
NFS_FLAGS(inode) &= ~NFS_INO_ADVISE_RDPLUS;
desc->plus = 0;
goto again;
}
goto error;
}
SetPageUptodate(page);
NFS_FLAGS(inode) |= NFS_INO_INVALID_ATIME;
/* Ensure consistent page alignment of the data.
* Note: assumes we have exclusive access to this mapping either
* throught inode->i_sem or some other mechanism.
*/
if (page->index == 0) {
invalidate_inode_pages(inode->i_mapping);
NFS_I(inode)->readdir_timestamp = timestamp;
}
unlock_page(page);
return 0;
error:
SetPageError(page);
unlock_page(page);
nfs_zap_caches(inode);
desc->error = error;
return -EIO;
}
static void bitmap_file_put(struct bitmap *bitmap)
{
struct file *file;
unsigned long flags;
spin_lock_irqsave(&bitmap->lock, flags);
file = bitmap->file;
bitmap->file = NULL;
spin_unlock_irqrestore(&bitmap->lock, flags);
if (file)
wait_event(bitmap->write_wait,
atomic_read(&bitmap->pending_writes)==0);
bitmap_file_unmap(bitmap);
if (file) {
struct inode *inode = file->f_path.dentry->d_inode;
invalidate_inode_pages(inode->i_mapping);
fput(file);
}
}
void fuse_change_attributes(struct inode *inode, struct fuse_attr *attr)
{
struct fuse_conn *fc = get_fuse_conn(inode);
if (S_ISREG(inode->i_mode) && i_size_read(inode) != attr->size)
invalidate_inode_pages(inode->i_mapping);
inode->i_ino = attr->ino;
inode->i_mode = (inode->i_mode & S_IFMT) + (attr->mode & 07777);
inode->i_nlink = attr->nlink;
inode->i_uid = attr->uid;
inode->i_gid = attr->gid;
spin_lock(&fc->lock);
i_size_write(inode, attr->size);
spin_unlock(&fc->lock);
inode->i_blksize = PAGE_CACHE_SIZE;
inode->i_blocks = attr->blocks;
inode->i_atime.tv_sec = attr->atime;
inode->i_atime.tv_nsec = attr->atimensec;
inode->i_mtime.tv_sec = attr->mtime;
inode->i_mtime.tv_nsec = attr->mtimensec;
inode->i_ctime.tv_sec = attr->ctime;
inode->i_ctime.tv_nsec = attr->ctimensec;
}
