Release 4.11 fs/ramfs/file-mmu.c
/* file-mmu.c: ramfs MMU-based file operations
*
* Resizable simple ram filesystem for Linux.
*
* Copyright (C) 2000 Linus Torvalds.
* 2000 Transmeta Corp.
*
* Usage limits added by David Gibson, Linuxcare Australia.
* This file is released under the GPL.
*/
/*
* NOTE! This filesystem is probably most useful
* not as a real filesystem, but as an example of
* how virtual filesystems can be written.
*
* It doesn't get much simpler than this. Consider
* that this file implements the full semantics of
* a POSIX-compliant read-write filesystem.
*
* Note in particular how the filesystem does not
* need to implement any data structures of its own
* to keep track of the virtual data: using the VFS
* caches is sufficient.
*/
#include <linux/fs.h>
#include <linux/mm.h>
#include <linux/ramfs.h>
#include <linux/sched.h>
#include "internal.h"
static unsigned long ramfs_mmu_get_unmapped_area(struct file *file,
unsigned long addr, unsigned long len, unsigned long pgoff,
unsigned long flags)
{
return current->mm->get_unmapped_area(file, addr, len, pgoff, flags);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Kirill A. Shutemov | 46 | 100.00% | 1 | 100.00% |
Total | 46 | 100.00% | 1 | 100.00% |
const struct file_operations ramfs_file_operations = {
.read_iter = generic_file_read_iter,
.write_iter = generic_file_write_iter,
.mmap = generic_file_mmap,
.fsync = noop_fsync,
.splice_read = generic_file_splice_read,
.splice_write = iter_file_splice_write,
.llseek = generic_file_llseek,
.get_unmapped_area = ramfs_mmu_get_unmapped_area,
};
const struct inode_operations ramfs_file_inode_operations = {
.setattr = simple_setattr,
.getattr = simple_getattr,
};
Overall Contributors
Person | Tokens | Prop | Commits | CommitProp |
Kirill A. Shutemov | 54 | 42.52% | 1 | 7.14% |
David Howells | 43 | 33.86% | 1 | 7.14% |
Adrian Bunk | 6 | 4.72% | 1 | 7.14% |
Al Viro | 5 | 3.94% | 3 | 21.43% |
Nicholas Piggin | 5 | 3.94% | 1 | 7.14% |
Octavian Purdila | 4 | 3.15% | 1 | 7.14% |
Dimitri Gorokhovik | 3 | 2.36% | 1 | 7.14% |
Jens Axboe | 2 | 1.57% | 1 | 7.14% |
Badari Pulavarty | 2 | 1.57% | 1 | 7.14% |
Arjan van de Ven | 2 | 1.57% | 2 | 14.29% |
Christoph Hellwig | 1 | 0.79% | 1 | 7.14% |
Total | 127 | 100.00% | 14 | 100.00% |
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