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https://github.com/FEX-Emu/linux.git
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cifs: switch to ->write_iter()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
parent
d4637bc18f
commit
3dae8750c3
@ -733,8 +733,7 @@ out_nls:
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goto out;
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}
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static ssize_t cifs_file_aio_write(struct kiocb *iocb, const struct iovec *iov,
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unsigned long nr_segs, loff_t pos)
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static ssize_t cifs_file_write_iter(struct kiocb *iocb, struct iov_iter *from)
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{
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struct inode *inode = file_inode(iocb->ki_filp);
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struct cifsInodeInfo *cinode = CIFS_I(inode);
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@ -745,14 +744,14 @@ static ssize_t cifs_file_aio_write(struct kiocb *iocb, const struct iovec *iov,
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if (written)
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return written;
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written = generic_file_aio_write(iocb, iov, nr_segs, pos);
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written = generic_file_write_iter(iocb, from);
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if (CIFS_CACHE_WRITE(CIFS_I(inode)))
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goto out;
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rc = filemap_fdatawrite(inode->i_mapping);
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if (rc)
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cifs_dbg(FYI, "cifs_file_aio_write: %d rc on %p inode\n",
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cifs_dbg(FYI, "cifs_file_write_iter: %d rc on %p inode\n",
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rc, inode);
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out:
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@ -889,9 +888,9 @@ const struct inode_operations cifs_symlink_inode_ops = {
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const struct file_operations cifs_file_ops = {
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.read = new_sync_read,
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.write = do_sync_write,
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.write = new_sync_write,
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.read_iter = generic_file_read_iter,
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.aio_write = cifs_file_aio_write,
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.write_iter = cifs_file_write_iter,
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.open = cifs_open,
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.release = cifs_close,
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.lock = cifs_lock,
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@ -908,9 +907,9 @@ const struct file_operations cifs_file_ops = {
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const struct file_operations cifs_file_strict_ops = {
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.read = new_sync_read,
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.write = do_sync_write,
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.write = new_sync_write,
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.read_iter = cifs_strict_readv,
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.aio_write = cifs_strict_writev,
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.write_iter = cifs_strict_writev,
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.open = cifs_open,
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.release = cifs_close,
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.lock = cifs_lock,
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@ -928,9 +927,9 @@ const struct file_operations cifs_file_strict_ops = {
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const struct file_operations cifs_file_direct_ops = {
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/* BB reevaluate whether they can be done with directio, no cache */
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.read = new_sync_read,
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.write = do_sync_write,
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.write = new_sync_write,
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.read_iter = cifs_user_readv,
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.aio_write = cifs_user_writev,
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.write_iter = cifs_user_writev,
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.open = cifs_open,
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.release = cifs_close,
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.lock = cifs_lock,
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@ -947,9 +946,9 @@ const struct file_operations cifs_file_direct_ops = {
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const struct file_operations cifs_file_nobrl_ops = {
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.read = new_sync_read,
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.write = do_sync_write,
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.write = new_sync_write,
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.read_iter = generic_file_read_iter,
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.aio_write = cifs_file_aio_write,
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.write_iter = cifs_file_write_iter,
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.open = cifs_open,
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.release = cifs_close,
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.fsync = cifs_fsync,
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@ -965,9 +964,9 @@ const struct file_operations cifs_file_nobrl_ops = {
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const struct file_operations cifs_file_strict_nobrl_ops = {
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.read = new_sync_read,
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.write = do_sync_write,
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.write = new_sync_write,
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.read_iter = cifs_strict_readv,
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.aio_write = cifs_strict_writev,
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.write_iter = cifs_strict_writev,
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.open = cifs_open,
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.release = cifs_close,
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.fsync = cifs_strict_fsync,
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@ -984,9 +983,9 @@ const struct file_operations cifs_file_strict_nobrl_ops = {
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const struct file_operations cifs_file_direct_nobrl_ops = {
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/* BB reevaluate whether they can be done with directio, no cache */
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.read = new_sync_read,
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.write = do_sync_write,
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.write = new_sync_write,
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.read_iter = cifs_user_readv,
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.aio_write = cifs_user_writev,
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.write_iter = cifs_user_writev,
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.open = cifs_open,
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.release = cifs_close,
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.fsync = cifs_fsync,
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@ -87,10 +87,8 @@ extern int cifs_close(struct inode *inode, struct file *file);
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extern int cifs_closedir(struct inode *inode, struct file *file);
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extern ssize_t cifs_user_readv(struct kiocb *iocb, struct iov_iter *to);
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extern ssize_t cifs_strict_readv(struct kiocb *iocb, struct iov_iter *to);
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extern ssize_t cifs_user_writev(struct kiocb *iocb, const struct iovec *iov,
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unsigned long nr_segs, loff_t pos);
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extern ssize_t cifs_strict_writev(struct kiocb *iocb, const struct iovec *iov,
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unsigned long nr_segs, loff_t pos);
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extern ssize_t cifs_user_writev(struct kiocb *iocb, struct iov_iter *from);
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extern ssize_t cifs_strict_writev(struct kiocb *iocb, struct iov_iter *from);
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extern int cifs_lock(struct file *, int, struct file_lock *);
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extern int cifs_fsync(struct file *, loff_t, loff_t, int);
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extern int cifs_strict_fsync(struct file *, loff_t, loff_t, int);
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@ -2385,14 +2385,12 @@ cifs_uncached_retry_writev(struct cifs_writedata *wdata)
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}
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static ssize_t
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cifs_iovec_write(struct file *file, const struct iovec *iov,
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unsigned long nr_segs, loff_t *poffset)
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cifs_iovec_write(struct file *file, struct iov_iter *from, loff_t *poffset)
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{
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unsigned long nr_pages, i;
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size_t bytes, copied, len, cur_len;
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ssize_t total_written = 0;
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loff_t offset;
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struct iov_iter it;
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struct cifsFileInfo *open_file;
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struct cifs_tcon *tcon;
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struct cifs_sb_info *cifs_sb;
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@ -2401,14 +2399,16 @@ cifs_iovec_write(struct file *file, const struct iovec *iov,
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int rc;
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pid_t pid;
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len = iov_length(iov, nr_segs);
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if (!len)
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return 0;
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len = iov_iter_count(from);
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rc = generic_write_checks(file, poffset, &len, 0);
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if (rc)
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return rc;
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if (!len)
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return 0;
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iov_iter_truncate(from, len);
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INIT_LIST_HEAD(&wdata_list);
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cifs_sb = CIFS_SB(file->f_path.dentry->d_sb);
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open_file = file->private_data;
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@ -2424,7 +2424,6 @@ cifs_iovec_write(struct file *file, const struct iovec *iov,
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else
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pid = current->tgid;
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iov_iter_init(&it, WRITE, iov, nr_segs, len);
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do {
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size_t save_len;
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@ -2446,7 +2445,7 @@ cifs_iovec_write(struct file *file, const struct iovec *iov,
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for (i = 0; i < nr_pages; i++) {
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bytes = min_t(size_t, cur_len, PAGE_SIZE);
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copied = copy_page_from_iter(wdata->pages[i], 0, bytes,
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&it);
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from);
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cur_len -= copied;
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/*
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* If we didn't copy as much as we expected, then that
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@ -2545,11 +2544,11 @@ restart_loop:
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return total_written ? total_written : (ssize_t)rc;
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}
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ssize_t cifs_user_writev(struct kiocb *iocb, const struct iovec *iov,
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unsigned long nr_segs, loff_t pos)
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ssize_t cifs_user_writev(struct kiocb *iocb, struct iov_iter *from)
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{
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ssize_t written;
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struct inode *inode;
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loff_t pos = iocb->ki_pos;
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inode = file_inode(iocb->ki_filp);
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@ -2559,7 +2558,7 @@ ssize_t cifs_user_writev(struct kiocb *iocb, const struct iovec *iov,
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* write request.
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*/
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written = cifs_iovec_write(iocb->ki_filp, iov, nr_segs, &pos);
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written = cifs_iovec_write(iocb->ki_filp, from, &pos);
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if (written > 0) {
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CIFS_I(inode)->invalid_mapping = true;
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iocb->ki_pos = pos;
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@ -2569,8 +2568,7 @@ ssize_t cifs_user_writev(struct kiocb *iocb, const struct iovec *iov,
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}
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static ssize_t
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cifs_writev(struct kiocb *iocb, const struct iovec *iov,
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unsigned long nr_segs, loff_t pos)
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cifs_writev(struct kiocb *iocb, struct iov_iter *from)
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{
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struct file *file = iocb->ki_filp;
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struct cifsFileInfo *cfile = (struct cifsFileInfo *)file->private_data;
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@ -2588,10 +2586,10 @@ cifs_writev(struct kiocb *iocb, const struct iovec *iov,
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mutex_lock(&inode->i_mutex);
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if (file->f_flags & O_APPEND)
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lock_pos = i_size_read(inode);
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if (!cifs_find_lock_conflict(cfile, lock_pos, iov_length(iov, nr_segs),
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if (!cifs_find_lock_conflict(cfile, lock_pos, iov_iter_count(from),
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server->vals->exclusive_lock_type, NULL,
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CIFS_WRITE_OP)) {
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rc = __generic_file_aio_write(iocb, iov, nr_segs);
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rc = __generic_file_write_iter(iocb, from);
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mutex_unlock(&inode->i_mutex);
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if (rc > 0) {
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@ -2609,8 +2607,7 @@ cifs_writev(struct kiocb *iocb, const struct iovec *iov,
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}
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ssize_t
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cifs_strict_writev(struct kiocb *iocb, const struct iovec *iov,
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unsigned long nr_segs, loff_t pos)
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cifs_strict_writev(struct kiocb *iocb, struct iov_iter *from)
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{
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struct inode *inode = file_inode(iocb->ki_filp);
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struct cifsInodeInfo *cinode = CIFS_I(inode);
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@ -2628,11 +2625,10 @@ cifs_strict_writev(struct kiocb *iocb, const struct iovec *iov,
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if (cap_unix(tcon->ses) &&
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(CIFS_UNIX_FCNTL_CAP & le64_to_cpu(tcon->fsUnixInfo.Capability))
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&& ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NOPOSIXBRL) == 0)) {
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written = generic_file_aio_write(
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iocb, iov, nr_segs, pos);
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written = generic_file_write_iter(iocb, from);
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goto out;
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}
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written = cifs_writev(iocb, iov, nr_segs, pos);
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written = cifs_writev(iocb, from);
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goto out;
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}
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/*
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@ -2641,7 +2637,7 @@ cifs_strict_writev(struct kiocb *iocb, const struct iovec *iov,
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* affected pages because it may cause a error with mandatory locks on
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* these pages but not on the region from pos to ppos+len-1.
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*/
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written = cifs_user_writev(iocb, iov, nr_segs, pos);
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written = cifs_user_writev(iocb, from);
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if (written > 0 && CIFS_CACHE_READ(cinode)) {
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/*
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* Windows 7 server can delay breaking level2 oplock if a write
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