#include <linux/limits.h>
#include <linux/ioctl.h>
-#include <linux/blk_types.h>
#include <linux/types.h>
/*
#define NR_FILE 8192 /* this can well be larger on a larger system */
-#define MAY_EXEC 0x00000001
-#define MAY_WRITE 0x00000002
-#define MAY_READ 0x00000004
-#define MAY_APPEND 0x00000008
-#define MAY_ACCESS 0x00000010
-#define MAY_OPEN 0x00000020
-#define MAY_CHDIR 0x00000040
-/* called from RCU mode, don't block */
-#define MAY_NOT_BLOCK 0x00000080
-
-/*
- * flags in file.f_mode. Note that FMODE_READ and FMODE_WRITE must correspond
- * to O_WRONLY and O_RDWR via the strange trick in __dentry_open()
- */
-
-/* file is open for reading */
-#define FMODE_READ ((fmode_t)0x1)
-/* file is open for writing */
-#define FMODE_WRITE ((fmode_t)0x2)
-/* file is seekable */
-#define FMODE_LSEEK ((fmode_t)0x4)
-/* file can be accessed using pread */
-#define FMODE_PREAD ((fmode_t)0x8)
-/* file can be accessed using pwrite */
-#define FMODE_PWRITE ((fmode_t)0x10)
-/* File is opened for execution with sys_execve / sys_uselib */
-#define FMODE_EXEC ((fmode_t)0x20)
-/* File is opened with O_NDELAY (only set for block devices) */
-#define FMODE_NDELAY ((fmode_t)0x40)
-/* File is opened with O_EXCL (only set for block devices) */
-#define FMODE_EXCL ((fmode_t)0x80)
-/* File is opened using open(.., 3, ..) and is writeable only for ioctls
- (specialy hack for floppy.c) */
-#define FMODE_WRITE_IOCTL ((fmode_t)0x100)
-/* 32bit hashes as llseek() offset (for directories) */
-#define FMODE_32BITHASH ((fmode_t)0x200)
-/* 64bit hashes as llseek() offset (for directories) */
-#define FMODE_64BITHASH ((fmode_t)0x400)
-
-/*
- * Don't update ctime and mtime.
- *
- * Currently a special hack for the XFS open_by_handle ioctl, but we'll
- * hopefully graduate it to a proper O_CMTIME flag supported by open(2) soon.
- */
-#define FMODE_NOCMTIME ((fmode_t)0x800)
-
-/* Expect random access pattern */
-#define FMODE_RANDOM ((fmode_t)0x1000)
-
-/* File is huge (eg. /dev/kmem): treat loff_t as unsigned */
-#define FMODE_UNSIGNED_OFFSET ((fmode_t)0x2000)
-
-/* File is opened with O_PATH; almost nothing can be done with it */
-#define FMODE_PATH ((fmode_t)0x4000)
-
-/* File was opened by fanotify and shouldn't generate fanotify events */
-#define FMODE_NONOTIFY ((fmode_t)0x1000000)
-
-/*
- * The below are the various read and write types that we support. Some of
- * them include behavioral modifiers that send information down to the
- * block layer and IO scheduler. Terminology:
- *
- * The block layer uses device plugging to defer IO a little bit, in
- * the hope that we will see more IO very shortly. This increases
- * coalescing of adjacent IO and thus reduces the number of IOs we
- * have to send to the device. It also allows for better queuing,
- * if the IO isn't mergeable. If the caller is going to be waiting
- * for the IO, then he must ensure that the device is unplugged so
- * that the IO is dispatched to the driver.
- *
- * All IO is handled async in Linux. This is fine for background
- * writes, but for reads or writes that someone waits for completion
- * on, we want to notify the block layer and IO scheduler so that they
- * know about it. That allows them to make better scheduling
- * decisions. So when the below references 'sync' and 'async', it
- * is referencing this priority hint.
- *
- * With that in mind, the available types are:
- *
- * READ A normal read operation. Device will be plugged.
- * READ_SYNC A synchronous read. Device is not plugged, caller can
- * immediately wait on this read without caring about
- * unplugging.
- * READA Used for read-ahead operations. Lower priority, and the
- * block layer could (in theory) choose to ignore this
- * request if it runs into resource problems.
- * WRITE A normal async write. Device will be plugged.
- * WRITE_SYNC Synchronous write. Identical to WRITE, but passes down
- * the hint that someone will be waiting on this IO
- * shortly. The write equivalent of READ_SYNC.
- * WRITE_ODIRECT Special case write for O_DIRECT only.
- * WRITE_FLUSH Like WRITE_SYNC but with preceding cache flush.
- * WRITE_FUA Like WRITE_SYNC but data is guaranteed to be on
- * non-volatile media on completion.
- * WRITE_FLUSH_FUA Combination of WRITE_FLUSH and FUA. The IO is preceded
- * by a cache flush and data is guaranteed to be on
- * non-volatile media on completion.
- *
- */
-#define RW_MASK REQ_WRITE
-#define RWA_MASK REQ_RAHEAD
-
-#define READ 0
-#define WRITE RW_MASK
-#define READA RWA_MASK
-
-#define READ_SYNC (READ | REQ_SYNC)
-#define WRITE_SYNC (WRITE | REQ_SYNC | REQ_NOIDLE)
-#define WRITE_ODIRECT (WRITE | REQ_SYNC)
-#define WRITE_FLUSH (WRITE | REQ_SYNC | REQ_NOIDLE | REQ_FLUSH)
-#define WRITE_FUA (WRITE | REQ_SYNC | REQ_NOIDLE | REQ_FUA)
-#define WRITE_FLUSH_FUA (WRITE | REQ_SYNC | REQ_NOIDLE | REQ_FLUSH | REQ_FUA)
-
-#define SEL_IN 1
-#define SEL_OUT 2
-#define SEL_EX 4
-
-/* public flags for file_system_type */
-#define FS_REQUIRES_DEV 1
-#define FS_BINARY_MOUNTDATA 2
-#define FS_HAS_SUBTYPE 4
-#define FS_REVAL_DOT 16384 /* Check the paths ".", ".." for staleness */
-#define FS_RENAME_DOES_D_MOVE 32768 /* FS will handle d_move()
- * during rename() internally.
- */
/*
* These are the fs-independent mount-flags: up to 32 flags are supported
#define MS_KERNMOUNT (1<<22) /* this is a kern_mount call */
#define MS_I_VERSION (1<<23) /* Update inode I_version field */
#define MS_STRICTATIME (1<<24) /* Always perform atime updates */
+
+/* These sb flags are internal to the kernel */
#define MS_NOSEC (1<<28)
#define MS_BORN (1<<29)
#define MS_ACTIVE (1<<30)
#define MS_MGC_VAL 0xC0ED0000
#define MS_MGC_MSK 0xffff0000
-/* Inode flags - they have nothing to superblock flags now */
-
-#define S_SYNC 1 /* Writes are synced at once */
-#define S_NOATIME 2 /* Do not update access times */
-#define S_APPEND 4 /* Append-only file */
-#define S_IMMUTABLE 8 /* Immutable file */
-#define S_DEAD 16 /* removed, but still open directory */
-#define S_NOQUOTA 32 /* Inode is not counted to quota */
-#define S_DIRSYNC 64 /* Directory modifications are synchronous */
-#define S_NOCMTIME 128 /* Do not update file c/mtime */
-#define S_SWAPFILE 256 /* Do not truncate: swapon got its bmaps */
-#define S_PRIVATE 512 /* Inode is fs-internal */
-#define S_IMA 1024 /* Inode has an associated IMA struct */
-#define S_AUTOMOUNT 2048 /* Automount/referral quasi-directory */
-#define S_NOSEC 4096 /* no suid or xattr security attributes */
-
-/*
- * Note that nosuid etc flags are inode-specific: setting some file-system
- * flags just means all the inodes inherit those flags by default. It might be
- * possible to override it selectively if you really wanted to with some
- * ioctl() that is not currently implemented.
- *
- * Exception: MS_RDONLY is always applied to the entire file system.
- *
- * Unfortunately, it is possible to change a filesystems flags with it mounted
- * with files in use. This means that all of the inodes will not have their
- * i_flags updated. Hence, i_flags no longer inherit the superblock mount
- * flags, so these have to be checked separately. -- rmk@arm.uk.linux.org
- */
-#define __IS_FLG(inode,flg) ((inode)->i_sb->s_flags & (flg))
-
-#define IS_RDONLY(inode) ((inode)->i_sb->s_flags & MS_RDONLY)
-#define IS_SYNC(inode) (__IS_FLG(inode, MS_SYNCHRONOUS) || \
- ((inode)->i_flags & S_SYNC))
-#define IS_DIRSYNC(inode) (__IS_FLG(inode, MS_SYNCHRONOUS|MS_DIRSYNC) || \
- ((inode)->i_flags & (S_SYNC|S_DIRSYNC)))
-#define IS_MANDLOCK(inode) __IS_FLG(inode, MS_MANDLOCK)
-#define IS_NOATIME(inode) __IS_FLG(inode, MS_RDONLY|MS_NOATIME)
-#define IS_I_VERSION(inode) __IS_FLG(inode, MS_I_VERSION)
-
-#define IS_NOQUOTA(inode) ((inode)->i_flags & S_NOQUOTA)
-#define IS_APPEND(inode) ((inode)->i_flags & S_APPEND)
-#define IS_IMMUTABLE(inode) ((inode)->i_flags & S_IMMUTABLE)
-#define IS_POSIXACL(inode) __IS_FLG(inode, MS_POSIXACL)
-
-#define IS_DEADDIR(inode) ((inode)->i_flags & S_DEAD)
-#define IS_NOCMTIME(inode) ((inode)->i_flags & S_NOCMTIME)
-#define IS_SWAPFILE(inode) ((inode)->i_flags & S_SWAPFILE)
-#define IS_PRIVATE(inode) ((inode)->i_flags & S_PRIVATE)
-#define IS_IMA(inode) ((inode)->i_flags & S_IMA)
-#define IS_AUTOMOUNT(inode) ((inode)->i_flags & S_AUTOMOUNT)
-#define IS_NOSEC(inode) ((inode)->i_flags & S_NOSEC)
-
/* the read-only stuff doesn't really belong here, but any other place is
probably as bad and I don't want to create yet another include file. */
#define BLKDISCARDZEROES _IO(0x12,124)
#define BLKSECDISCARD _IO(0x12,125)
#define BLKROTATIONAL _IO(0x12,126)
+#define BLKZEROOUT _IO(0x12,127)
#define BMAP_IOCTL 1 /* obsolete - kept for compatibility */
#define FIBMAP _IO(0x00,1) /* bmap access */
projects / platform / upstream / linux-glibc-devel.git / blobdiff