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author | Andrew Hsieh <andrewhsieh@google.com> | 2013-09-06 18:37:46 +0800 |
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committer | Andrew Hsieh <andrewhsieh@google.com> | 2013-09-06 19:04:40 +0800 |
commit | 6986c6e7f06bb3bdedfc3bb08694da9b1227048c (patch) | |
tree | 5c0f01f1f54d9040100858182232c1fb4134b58f /9/platforms/android-18/arch-mips/usr/include/linux/backing-dev.h | |
parent | 30ee84f92cb832c789366c516fcadb718ccc25e8 (diff) | |
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Add NDK r9 part 1/2: platforms/
Change-Id: Ie572e90ffda7f982d931dda1a9f5a0c68953a762
Diffstat (limited to '9/platforms/android-18/arch-mips/usr/include/linux/backing-dev.h')
-rw-r--r-- | 9/platforms/android-18/arch-mips/usr/include/linux/backing-dev.h | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/9/platforms/android-18/arch-mips/usr/include/linux/backing-dev.h b/9/platforms/android-18/arch-mips/usr/include/linux/backing-dev.h new file mode 100644 index 0000000..4996d2c --- /dev/null +++ b/9/platforms/android-18/arch-mips/usr/include/linux/backing-dev.h @@ -0,0 +1,53 @@ +/**************************************************************************** + **************************************************************************** + *** + *** 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. + *** + **************************************************************************** + ****************************************************************************/ +#ifndef _LINUX_BACKING_DEV_H +#define _LINUX_BACKING_DEV_H + +#include <asm/atomic.h> + +enum bdi_state { + BDI_pdflush, + BDI_write_congested, + BDI_read_congested, + BDI_unused, +}; + +typedef int (congested_fn)(void *, int); + +struct backing_dev_info { + unsigned long ra_pages; + unsigned long state; + unsigned int capabilities; + congested_fn *congested_fn; + void *congested_data; + void (*unplug_io_fn)(struct backing_dev_info *, struct page *); + void *unplug_io_data; +}; + +#define BDI_CAP_NO_ACCT_DIRTY 0x00000001 +#define BDI_CAP_NO_WRITEBACK 0x00000002 +#define BDI_CAP_MAP_COPY 0x00000004 +#define BDI_CAP_MAP_DIRECT 0x00000008 +#define BDI_CAP_READ_MAP 0x00000010 +#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)) +#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)) +#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 |