mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-24 13:13:57 +08:00
8d0207652c
iter_file_splice_write() - a ->splice_write() instance that gathers the pipe buffers, builds a bio_vec-based iov_iter covering those and feeds it to ->write_iter(). A bunch of simple cases coverted to that... [AV: fixed the braino spotted by Cyrill] Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
82 lines
2.1 KiB
C
82 lines
2.1 KiB
C
/*
|
|
* linux/fs/ext3/file.c
|
|
*
|
|
* Copyright (C) 1992, 1993, 1994, 1995
|
|
* Remy Card (card@masi.ibp.fr)
|
|
* Laboratoire MASI - Institut Blaise Pascal
|
|
* Universite Pierre et Marie Curie (Paris VI)
|
|
*
|
|
* from
|
|
*
|
|
* linux/fs/minix/file.c
|
|
*
|
|
* Copyright (C) 1991, 1992 Linus Torvalds
|
|
*
|
|
* ext3 fs regular file handling primitives
|
|
*
|
|
* 64-bit file support on 64-bit platforms by Jakub Jelinek
|
|
* (jj@sunsite.ms.mff.cuni.cz)
|
|
*/
|
|
|
|
#include <linux/quotaops.h>
|
|
#include "ext3.h"
|
|
#include "xattr.h"
|
|
#include "acl.h"
|
|
|
|
/*
|
|
* Called when an inode is released. Note that this is different
|
|
* from ext3_file_open: open gets called at every open, but release
|
|
* gets called only when /all/ the files are closed.
|
|
*/
|
|
static int ext3_release_file (struct inode * inode, struct file * filp)
|
|
{
|
|
if (ext3_test_inode_state(inode, EXT3_STATE_FLUSH_ON_CLOSE)) {
|
|
filemap_flush(inode->i_mapping);
|
|
ext3_clear_inode_state(inode, EXT3_STATE_FLUSH_ON_CLOSE);
|
|
}
|
|
/* if we are the last writer on the inode, drop the block reservation */
|
|
if ((filp->f_mode & FMODE_WRITE) &&
|
|
(atomic_read(&inode->i_writecount) == 1))
|
|
{
|
|
mutex_lock(&EXT3_I(inode)->truncate_mutex);
|
|
ext3_discard_reservation(inode);
|
|
mutex_unlock(&EXT3_I(inode)->truncate_mutex);
|
|
}
|
|
if (is_dx(inode) && filp->private_data)
|
|
ext3_htree_free_dir_info(filp->private_data);
|
|
|
|
return 0;
|
|
}
|
|
|
|
const struct file_operations ext3_file_operations = {
|
|
.llseek = generic_file_llseek,
|
|
.read = new_sync_read,
|
|
.write = new_sync_write,
|
|
.read_iter = generic_file_read_iter,
|
|
.write_iter = generic_file_write_iter,
|
|
.unlocked_ioctl = ext3_ioctl,
|
|
#ifdef CONFIG_COMPAT
|
|
.compat_ioctl = ext3_compat_ioctl,
|
|
#endif
|
|
.mmap = generic_file_mmap,
|
|
.open = dquot_file_open,
|
|
.release = ext3_release_file,
|
|
.fsync = ext3_sync_file,
|
|
.splice_read = generic_file_splice_read,
|
|
.splice_write = iter_file_splice_write,
|
|
};
|
|
|
|
const struct inode_operations ext3_file_inode_operations = {
|
|
.setattr = ext3_setattr,
|
|
#ifdef CONFIG_EXT3_FS_XATTR
|
|
.setxattr = generic_setxattr,
|
|
.getxattr = generic_getxattr,
|
|
.listxattr = ext3_listxattr,
|
|
.removexattr = generic_removexattr,
|
|
#endif
|
|
.get_acl = ext3_get_acl,
|
|
.set_acl = ext3_set_acl,
|
|
.fiemap = ext3_fiemap,
|
|
};
|
|
|