bionic/libc/kernel/common/linux/backing-dev.h
Elliott Hughes 40596aa005 Make cpp.py less braindead.
The old code ignored operator precedence (!), despite having two tables
of operator precedence. The code's still pretty awful, but I've cleaned
it up enough to fix this, the most important bug.

This patch lets us correctly clean the uapi unistd.h, stat.h, and swab.h files,
and also fixes the mess we were already making of various old kernel
header files. I've added a bunch more tests, fixed the existing tests that
the existing script was already failing (!), and changed the script so that
the tests are run every time the script is run.

We can probably remove some of the old kernel header files that we were
parsing incorrectly, but we can worry about that later.

Bug: 11253477
Change-Id: Ie66c65b3a7ae13b4e98ed8038a6a534f06eae0e5
2013-11-06 12:04:48 -08:00

62 lines
2.9 KiB
C

/****************************************************************************
****************************************************************************
***
*** This header was automatically generated from a Linux kernel header
*** of the same name, to make information necessary for userspace to
*** call into the kernel available to libc. It contains only constants,
*** structures, and macros generated from the original header, and thus,
*** contains no copyrightable information.
***
*** To edit the content of this header, modify the corresponding
*** source file (e.g. under external/kernel-headers/original/) then
*** run bionic/libc/kernel/tools/update_all.py
***
*** Any manual change here will be lost the next time this script will
*** be run. You've been warned!
***
****************************************************************************
****************************************************************************/
#ifndef _LINUX_BACKING_DEV_H
#define _LINUX_BACKING_DEV_H
#include <asm/atomic.h>
enum bdi_state {
/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
BDI_pdflush,
BDI_write_congested,
BDI_read_congested,
BDI_unused,
/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
};
typedef int (congested_fn)(void *, int);
struct backing_dev_info {
unsigned long ra_pages;
/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
unsigned long state;
unsigned int capabilities;
congested_fn *congested_fn;
void *congested_data;
/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
void (*unplug_io_fn)(struct backing_dev_info *, struct page *);
void *unplug_io_data;
};
#define BDI_CAP_NO_ACCT_DIRTY 0x00000001
/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
#define BDI_CAP_NO_WRITEBACK 0x00000002
#define BDI_CAP_MAP_COPY 0x00000004
#define BDI_CAP_MAP_DIRECT 0x00000008
#define BDI_CAP_READ_MAP 0x00000010
/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
#define BDI_CAP_WRITE_MAP 0x00000020
#define BDI_CAP_EXEC_MAP 0x00000040
#define BDI_CAP_VMFLAGS (BDI_CAP_READ_MAP | BDI_CAP_WRITE_MAP | BDI_CAP_EXEC_MAP)
#if defined(VM_MAYREAD) && (BDI_CAP_READ_MAP != VM_MAYREAD || BDI_CAP_WRITE_MAP != VM_MAYWRITE || BDI_CAP_EXEC_MAP != VM_MAYEXEC)
/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
#error please change backing_dev_info::capabilities flags
#endif
#define bdi_cap_writeback_dirty(bdi) (!((bdi)->capabilities & BDI_CAP_NO_WRITEBACK))
#define bdi_cap_account_dirty(bdi) (!((bdi)->capabilities & BDI_CAP_NO_ACCT_DIRTY))
/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
#define mapping_cap_writeback_dirty(mapping) bdi_cap_writeback_dirty((mapping)->backing_dev_info)
#define mapping_cap_account_dirty(mapping) bdi_cap_account_dirty((mapping)->backing_dev_info)
#endif