FM / linux

/usr/include/linux

Name	Size	Mode	Actions
android/	-	0755	rm
byteorder/	-	0755	rm
caif/	-	0755	rm
can/	-	0755	rm
cifs/	-	0755	rm
dvb/	-	0755	rm
genwqe/	-	0755	rm
hdlc/	-	0755	rm
hsi/	-	0755	rm
iio/	-	0755	rm
isdn/	-	0755	rm
media/	-	0755	rm
misc/	-	0755	rm
mmc/	-	0755	rm
netfilter/	-	0755	rm
netfilter_arp/	-	0755	rm
netfilter_bridge/	-	0755	rm
netfilter_ipv4/	-	0755	rm
netfilter_ipv6/	-	0755	rm
nfsd/	-	0755	rm
raid/	-	0755	rm
sched/	-	0755	rm
spi/	-	0755	rm
sunrpc/	-	0755	rm
surface_aggregator/	-	0755	rm
tc_act/	-	0755	rm
tc_ematch/	-	0755	rm
usb/	-	0755	rm
a.out.h	6892	0644	edit dl rm
acct.h	3913	0644	edit dl rm
acrn.h	18956	0644	edit dl rm
adb.h	1140	0644	edit dl rm
adfs_fs.h	993	0644	edit dl rm
affs_hardblocks.h	1578	0644	edit dl rm
agpgart.h	3955	0644	edit dl rm
aio_abi.h	3398	0644	edit dl rm
am437x-vpfe.h	3681	0644	edit dl rm
amt.h	1747	0644	edit dl rm
apm_bios.h	3683	0644	edit dl rm
arcfb.h	213	0644	edit dl rm
arm_sdei.h	2751	0644	edit dl rm
aspeed-lpc-ctrl.h	1780	0644	edit dl rm
aspeed-p2a-ctrl.h	1906	0644	edit dl rm
aspeed-video.h	389	0644	edit dl rm
atalk.h	1023	0644	edit dl rm
atm.h	7888	0644	edit dl rm
atmapi.h	952	0644	edit dl rm
atmarp.h	1296	0644	edit dl rm
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atmsvc.h	1853	0644	edit dl rm
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atm_tcp.h	1622	0644	edit dl rm
atm_zatm.h	1540	0644	edit dl rm
audit.h	21744	0644	edit dl rm
auto_dev-ioctl.h	4985	0644	edit dl rm
auto_fs.h	6428	0644	edit dl rm
auto_fs4.h	451	0644	edit dl rm
auxvec.h	1819	0644	edit dl rm
ax25.h	2824	0644	edit dl rm
batadv_packet.h	21632	0644	edit dl rm
batman_adv.h	16887	0644	edit dl rm
baycom.h	883	0644	edit dl rm
bcm933xx_hcs.h	419	0644	edit dl rm
bfs_fs.h	1905	0644	edit dl rm
binfmts.h	776	0644	edit dl rm
bits.h	517	0644	edit dl rm
blkdev.h	359	0644	edit dl rm
blkpg.h	904	0644	edit dl rm
blktrace_api.h	4701	0644	edit dl rm
blkzoned.h	6492	0644	edit dl rm
bpf.h	280344	0644	edit dl rm
bpf_common.h	1367	0644	edit dl rm
bpf_perf_event.h	529	0644	edit dl rm
bpqether.h	981	0644	edit dl rm
bsg.h	2494	0644	edit dl rm
bt-bmc.h	572	0644	edit dl rm
btf.h	5591	0644	edit dl rm
btrfs.h	37150	0644	edit dl rm
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cachefiles.h	1650	0644	edit dl rm
can.h	11496	0644	edit dl rm
capability.h	13523	0644	edit dl rm
capi.h	3124	0644	edit dl rm
cciss_defs.h	3281	0644	edit dl rm
cciss_ioctl.h	2761	0644	edit dl rm
ccs.h	767	0644	edit dl rm
cdrom.h	29561	0644	edit dl rm
cec-funcs.h	54419	0644	edit dl rm
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cfm_bridge.h	1456	0644	edit dl rm
cgroupstats.h	2105	0644	edit dl rm
chio.h	5282	0644	edit dl rm
close_range.h	377	0644	edit dl rm
cn_proc.h	4160	0644	edit dl rm
coda.h	18216	0644	edit dl rm
coff.h	12549	0644	edit dl rm
comedi.h	55481	0644	edit dl rm
connector.h	2252	0644	edit dl rm
const.h	1587	0644	edit dl rm
coresight-stm.h	747	0644	edit dl rm
counter.h	4889	0644	edit dl rm
cramfs_fs.h	3555	0644	edit dl rm
cryptouser.h	5812	0644	edit dl rm
cuda.h	905	0644	edit dl rm
cxl_mem.h	8143	0644	edit dl rm
cyclades.h	969	0644	edit dl rm
cycx_cfm.h	2989	0644	edit dl rm
dcbnl.h	25571	0644	edit dl rm
dccp.h	6436	0644	edit dl rm
devlink.h	22832	0644	edit dl rm
dlm.h	2664	0644	edit dl rm
dlmconstants.h	5091	0644	edit dl rm
dlm_device.h	2541	0644	edit dl rm
dlm_plock.h	916	0644	edit dl rm
dm-ioctl.h	11598	0644	edit dl rm
dm-log-userspace.h	15190	0644	edit dl rm
dma-buf.h	7347	0644	edit dl rm
dma-heap.h	1397	0644	edit dl rm
dns_resolver.h	3949	0644	edit dl rm
dpll.h	8356	0644	edit dl rm
dqblk_xfs.h	9388	0644	edit dl rm
dw100.h	357	0644	edit dl rm
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elf-em.h	2627	0644	edit dl rm
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elf.h	15677	0644	edit dl rm
errno.h	23	0644	edit dl rm
errqueue.h	1983	0644	edit dl rm
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eventfd.h	264	0644	edit dl rm
eventpoll.h	2912	0644	edit dl rm
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ext4.h	4122	0644	edit dl rm
f2fs.h	3363	0644	edit dl rm
fadvise.h	842	0644	edit dl rm
falloc.h	3643	0644	edit dl rm
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fb.h	16335	0644	edit dl rm
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fd.h	12117	0644	edit dl rm
fdreg.h	5364	0644	edit dl rm
fib_rules.h	2058	0644	edit dl rm
fiemap.h	2774	0644	edit dl rm
filter.h	2216	0644	edit dl rm
firewire-cdev.h	50720	0644	edit dl rm
firewire-constants.h	3231	0644	edit dl rm
fou.h	819	0644	edit dl rm
fpga-dfl.h	8728	0644	edit dl rm
fs.h	21733	0644	edit dl rm
fscrypt.h	6592	0644	edit dl rm
fsi.h	3088	0644	edit dl rm
fsl_hypervisor.h	7301	0644	edit dl rm
fsl_mc.h	734	0644	edit dl rm
fsmap.h	4402	0644	edit dl rm
fsverity.h	3185	0644	edit dl rm
fuse.h	29504	0644	edit dl rm
futex.h	6127	0644	edit dl rm
gameport.h	897	0644	edit dl rm
genetlink.h	2238	0644	edit dl rm
gen_stats.h	1526	0644	edit dl rm
gfs2_ondisk.h	14773	0644	edit dl rm
gpio.h	20297	0644	edit dl rm
gsmmux.h	4509	0644	edit dl rm
gtp.h	782	0644	edit dl rm
handshake.h	1646	0644	edit dl rm
hash_info.h	1034	0644	edit dl rm
hdlc.h	637	0644	edit dl rm
hdlcdrv.h	2908	0644	edit dl rm
hdreg.h	22703	0644	edit dl rm
hid.h	2086	0644	edit dl rm
hiddev.h	6345	0644	edit dl rm
hidraw.h	2114	0644	edit dl rm
hpet.h	743	0644	edit dl rm
hsr_netlink.h	1101	0644	edit dl rm
hw_breakpoint.h	605	0644	edit dl rm
hyperv.h	11176	0644	edit dl rm
i2c-dev.h	1875	0644	edit dl rm
i2c.h	6890	0644	edit dl rm
i2o-dev.h	11555	0644	edit dl rm
i8k.h	1528	0644	edit dl rm
icmp.h	4785	0644	edit dl rm
icmpv6.h	4300	0644	edit dl rm
idxd.h	9328	0644	edit dl rm
if.h	10925	0644	edit dl rm
ife.h	351	0644	edit dl rm
if_addr.h	2143	0644	edit dl rm
if_addrlabel.h	721	0644	edit dl rm
if_alg.h	1601	0644	edit dl rm
if_arcnet.h	3714	0644	edit dl rm
if_arp.h	6589	0644	edit dl rm
if_bonding.h	5145	0644	edit dl rm
if_bridge.h	20666	0644	edit dl rm
if_cablemodem.h	986	0644	edit dl rm
if_eql.h	1349	0644	edit dl rm
if_ether.h	8766	0644	edit dl rm
if_fc.h	1738	0644	edit dl rm
if_fddi.h	4369	0644	edit dl rm
if_hippi.h	4235	0644	edit dl rm
if_infiniband.h	1245	0644	edit dl rm
if_link.h	56005	0644	edit dl rm
if_ltalk.h	210	0644	edit dl rm
if_macsec.h	6503	0644	edit dl rm
if_packet.h	8273	0644	edit dl rm
if_phonet.h	424	0644	edit dl rm
if_plip.h	660	0644	edit dl rm
if_ppp.h	29	0644	edit dl rm
if_pppol2tp.h	3303	0644	edit dl rm
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if_slip.h	872	0644	edit dl rm
if_team.h	1617	0644	edit dl rm
if_tun.h	4315	0644	edit dl rm
if_tunnel.h	5604	0644	edit dl rm
if_vlan.h	1831	0644	edit dl rm
if_x25.h	881	0644	edit dl rm
if_xdp.h	5010	0644	edit dl rm
igmp.h	3061	0644	edit dl rm
ila.h	1246	0644	edit dl rm
in.h	10956	0644	edit dl rm
in6.h	7578	0644	edit dl rm
inet_diag.h	5015	0644	edit dl rm
inotify.h	3289	0644	edit dl rm
input-event-codes.h	30258	0644	edit dl rm
input.h	16217	0644	edit dl rm
in_route.h	936	0644	edit dl rm
ioam6.h	2383	0644	edit dl rm
ioam6_genl.h	1373	0644	edit dl rm
ioam6_iptunnel.h	1428	0644	edit dl rm
ioctl.h	163	0644	edit dl rm
iommufd.h	29804	0644	edit dl rm
ioprio.h	4175	0644	edit dl rm
io_uring.h	22355	0644	edit dl rm
ip.h	4846	0644	edit dl rm
ip6_tunnel.h	1953	0644	edit dl rm
ipc.h	2101	0644	edit dl rm
ipmi.h	15442	0644	edit dl rm
ipmi_bmc.h	488	0644	edit dl rm
ipmi_msgdefs.h	3430	0644	edit dl rm
ipmi_ssif_bmc.h	441	0644	edit dl rm
ipsec.h	947	0644	edit dl rm
ipv6.h	4325	0644	edit dl rm
ipv6_route.h	1908	0644	edit dl rm
ip_vs.h	13962	0644	edit dl rm
irqnr.h	104	0644	edit dl rm
iso_fs.h	6483	0644	edit dl rm
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ivtv.h	3022	0644	edit dl rm
ivtvfb.h	1207	0644	edit dl rm
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joystick.h	3434	0644	edit dl rm
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keyboard.h	13459	0644	edit dl rm
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mpls_iptunnel.h	761	0644	edit dl rm
mptcp.h	3970	0644	edit dl rm
mptcp_pm.h	4590	0644	edit dl rm
mqueue.h	2201	0644	edit dl rm
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mrp_bridge.h	1708	0644	edit dl rm
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mtio.h	8175	0644	edit dl rm
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netconf.h	614	0644	edit dl rm
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netfilter_arp.h	445	0644	edit dl rm
netfilter_bridge.h	1238	0644	edit dl rm
netfilter_ipv4.h	1488	0644	edit dl rm
netfilter_ipv6.h	1383	0644	edit dl rm
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npcm-video.h	1215	0644	edit dl rm
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nvram.h	532	0644	edit dl rm
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serio.h	2139	0644	edit dl rm
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smc_diag.h	2951	0644	edit dl rm
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sysinfo.h	1049	0644	edit dl rm
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taskstats.h	8322	0644	edit dl rm
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Edit: /usr/include/linux/fs.h (21733B)

/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef _LINUX_FS_H
#define _LINUX_FS_H

/*
 * This file has definitions for some important file table structures
 * and constants and structures used by various generic file system
 * ioctl's.  Please do not make any changes in this file before
 * sending patches for review to linux-fsdevel@vger.kernel.org and
 * linux-api@vger.kernel.org.
 */

#include <linux/limits.h>
#include <linux/ioctl.h>
#include <linux/types.h>
#include <linux/fscrypt.h>

/* Use of MS_* flags within the kernel is restricted to core mount(2) code. */
#include <linux/mount.h>

/*
 * It's silly to have NR_OPEN bigger than NR_FILE, but you can change
 * the file limit at runtime and only root can increase the per-process
 * nr_file rlimit, so it's safe to set up a ridiculously high absolute
 * upper limit on files-per-process.
 *
 * Some programs (notably those using select()) may have to be 
 * recompiled to take full advantage of the new limits..  
 */

/* Fixed constants first: */
#undef NR_OPEN
#define INR_OPEN_CUR 1024	/* Initial setting for nfile rlimits */
#define INR_OPEN_MAX 4096	/* Hard limit for nfile rlimits */

#define BLOCK_SIZE_BITS 10
#define BLOCK_SIZE (1<<BLOCK_SIZE_BITS)

#define SEEK_SET	0	/* seek relative to beginning of file */
#define SEEK_CUR	1	/* seek relative to current file position */
#define SEEK_END	2	/* seek relative to end of file */
#define SEEK_DATA	3	/* seek to the next data */
#define SEEK_HOLE	4	/* seek to the next hole */
#define SEEK_MAX	SEEK_HOLE

#define RENAME_NOREPLACE	(1 << 0)	/* Don't overwrite target */
#define RENAME_EXCHANGE		(1 << 1)	/* Exchange source and dest */
#define RENAME_WHITEOUT		(1 << 2)	/* Whiteout source */

struct file_clone_range {
	__s64 src_fd;
	__u64 src_offset;
	__u64 src_length;
	__u64 dest_offset;
};

struct fstrim_range {
	__u64 start;
	__u64 len;
	__u64 minlen;
};

/*
 * We include a length field because some filesystems (vfat) have an identifier
 * that we do want to expose as a UUID, but doesn't have the standard length.
 *
 * We use a fixed size buffer beacuse this interface will, by fiat, never
 * support "UUIDs" longer than 16 bytes; we don't want to force all downstream
 * users to have to deal with that.
 */
struct fsuuid2 {
	__u8	len;
	__u8	uuid[16];
};

struct fs_sysfs_path {
	__u8			len;
	__u8			name[128];
};

/* extent-same (dedupe) ioctls; these MUST match the btrfs ioctl definitions */
#define FILE_DEDUPE_RANGE_SAME		0
#define FILE_DEDUPE_RANGE_DIFFERS	1

/* from struct btrfs_ioctl_file_extent_same_info */
struct file_dedupe_range_info {
	__s64 dest_fd;		/* in - destination file */
	__u64 dest_offset;	/* in - start of extent in destination */
	__u64 bytes_deduped;	/* out - total # of bytes we were able
				 * to dedupe from this file. */
	/* status of this dedupe operation:
	 * < 0 for error
	 * == FILE_DEDUPE_RANGE_SAME if dedupe succeeds
	 * == FILE_DEDUPE_RANGE_DIFFERS if data differs
	 */
	__s32 status;		/* out - see above description */
	__u32 reserved;		/* must be zero */
};

/* from struct btrfs_ioctl_file_extent_same_args */
struct file_dedupe_range {
	__u64 src_offset;	/* in - start of extent in source */
	__u64 src_length;	/* in - length of extent */
	__u16 dest_count;	/* in - total elements in info array */
	__u16 reserved1;	/* must be zero */
	__u32 reserved2;	/* must be zero */
	struct file_dedupe_range_info info[];
};

/* And dynamically-tunable limits and defaults: */
struct files_stat_struct {
	unsigned long nr_files;		/* read only */
	unsigned long nr_free_files;	/* read only */
	unsigned long max_files;		/* tunable */
};

struct inodes_stat_t {
	long nr_inodes;
	long nr_unused;
	long dummy[5];		/* padding for sysctl ABI compatibility */
};

#define NR_FILE  8192	/* this can well be larger on a larger system */

/*
 * Structure for FS_IOC_FSGETXATTR[A] and FS_IOC_FSSETXATTR.
 */
struct fsxattr {
	__u32		fsx_xflags;	/* xflags field value (get/set) */
	__u32		fsx_extsize;	/* extsize field value (get/set)*/
	__u32		fsx_nextents;	/* nextents field value (get)	*/
	__u32		fsx_projid;	/* project identifier (get/set) */
	__u32		fsx_cowextsize;	/* CoW extsize field value (get/set)*/
	unsigned char	fsx_pad[8];
};

/*
 * Flags for the fsx_xflags field
 */
#define FS_XFLAG_REALTIME	0x00000001	/* data in realtime volume */
#define FS_XFLAG_PREALLOC	0x00000002	/* preallocated file extents */
#define FS_XFLAG_IMMUTABLE	0x00000008	/* file cannot be modified */
#define FS_XFLAG_APPEND		0x00000010	/* all writes append */
#define FS_XFLAG_SYNC		0x00000020	/* all writes synchronous */
#define FS_XFLAG_NOATIME	0x00000040	/* do not update access time */
#define FS_XFLAG_NODUMP		0x00000080	/* do not include in backups */
#define FS_XFLAG_RTINHERIT	0x00000100	/* create with rt bit set */
#define FS_XFLAG_PROJINHERIT	0x00000200	/* create with parents projid */
#define FS_XFLAG_NOSYMLINKS	0x00000400	/* disallow symlink creation */
#define FS_XFLAG_EXTSIZE	0x00000800	/* extent size allocator hint */
#define FS_XFLAG_EXTSZINHERIT	0x00001000	/* inherit inode extent size */
#define FS_XFLAG_NODEFRAG	0x00002000	/* do not defragment */
#define FS_XFLAG_FILESTREAM	0x00004000	/* use filestream allocator */
#define FS_XFLAG_DAX		0x00008000	/* use DAX for IO */
#define FS_XFLAG_COWEXTSIZE	0x00010000	/* CoW extent size allocator hint */
#define FS_XFLAG_HASATTR	0x80000000	/* no DIFLAG for this	*/

/* 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 BLKROSET   _IO(0x12,93)	/* set device read-only (0 = read-write) */
#define BLKROGET   _IO(0x12,94)	/* get read-only status (0 = read_write) */
#define BLKRRPART  _IO(0x12,95)	/* re-read partition table */
#define BLKGETSIZE _IO(0x12,96)	/* return device size /512 (long *arg) */
#define BLKFLSBUF  _IO(0x12,97)	/* flush buffer cache */
#define BLKRASET   _IO(0x12,98)	/* set read ahead for block device */
#define BLKRAGET   _IO(0x12,99)	/* get current read ahead setting */
#define BLKFRASET  _IO(0x12,100)/* set filesystem (mm/filemap.c) read-ahead */
#define BLKFRAGET  _IO(0x12,101)/* get filesystem (mm/filemap.c) read-ahead */
#define BLKSECTSET _IO(0x12,102)/* set max sectors per request (ll_rw_blk.c) */
#define BLKSECTGET _IO(0x12,103)/* get max sectors per request (ll_rw_blk.c) */
#define BLKSSZGET  _IO(0x12,104)/* get block device sector size */
#if 0
#define BLKPG      _IO(0x12,105)/* See blkpg.h */

/* Some people are morons.  Do not use sizeof! */

#define BLKELVGET  _IOR(0x12,106,size_t)/* elevator get */
#define BLKELVSET  _IOW(0x12,107,size_t)/* elevator set */
/* This was here just to show that the number is taken -
   probably all these _IO(0x12,*) ioctls should be moved to blkpg.h. */
#endif
/* A jump here: 108-111 have been used for various private purposes. */
#define BLKBSZGET  _IOR(0x12,112,size_t)
#define BLKBSZSET  _IOW(0x12,113,size_t)
#define BLKGETSIZE64 _IOR(0x12,114,size_t)	/* return device size in bytes (u64 *arg) */
#define BLKTRACESETUP _IOWR(0x12,115,struct blk_user_trace_setup)
#define BLKTRACESTART _IO(0x12,116)
#define BLKTRACESTOP _IO(0x12,117)
#define BLKTRACETEARDOWN _IO(0x12,118)
#define BLKDISCARD _IO(0x12,119)
#define BLKIOMIN _IO(0x12,120)
#define BLKIOOPT _IO(0x12,121)
#define BLKALIGNOFF _IO(0x12,122)
#define BLKPBSZGET _IO(0x12,123)
#define BLKDISCARDZEROES _IO(0x12,124)
#define BLKSECDISCARD _IO(0x12,125)
#define BLKROTATIONAL _IO(0x12,126)
#define BLKZEROOUT _IO(0x12,127)
#define BLKGETDISKSEQ _IOR(0x12,128,__u64)
/*
 * A jump here: 130-136 are reserved for zoned block devices
 * (see uapi/linux/blkzoned.h)
 */

#define BMAP_IOCTL 1		/* obsolete - kept for compatibility */
#define FIBMAP	   _IO(0x00,1)	/* bmap access */
#define FIGETBSZ   _IO(0x00,2)	/* get the block size used for bmap */
#define FIFREEZE	_IOWR('X', 119, int)	/* Freeze */
#define FITHAW		_IOWR('X', 120, int)	/* Thaw */
#define FITRIM		_IOWR('X', 121, struct fstrim_range)	/* Trim */
#define FICLONE		_IOW(0x94, 9, int)
#define FICLONERANGE	_IOW(0x94, 13, struct file_clone_range)
#define FIDEDUPERANGE	_IOWR(0x94, 54, struct file_dedupe_range)

#define FSLABEL_MAX 256	/* Max chars for the interface; each fs may differ */

#define	FS_IOC_GETFLAGS			_IOR('f', 1, long)
#define	FS_IOC_SETFLAGS			_IOW('f', 2, long)
#define	FS_IOC_GETVERSION		_IOR('v', 1, long)
#define	FS_IOC_SETVERSION		_IOW('v', 2, long)
#define FS_IOC_FIEMAP			_IOWR('f', 11, struct fiemap)
#define FS_IOC32_GETFLAGS		_IOR('f', 1, int)
#define FS_IOC32_SETFLAGS		_IOW('f', 2, int)
#define FS_IOC32_GETVERSION		_IOR('v', 1, int)
#define FS_IOC32_SETVERSION		_IOW('v', 2, int)
#define FS_IOC_FSGETXATTR		_IOR('X', 31, struct fsxattr)
#define FS_IOC_FSSETXATTR		_IOW('X', 32, struct fsxattr)
#define FS_IOC_GETFSLABEL		_IOR(0x94, 49, char[FSLABEL_MAX])
#define FS_IOC_SETFSLABEL		_IOW(0x94, 50, char[FSLABEL_MAX])
/* Returns the external filesystem UUID, the same one blkid returns */
#define FS_IOC_GETFSUUID		_IOR(0x15, 0, struct fsuuid2)
/*
 * Returns the path component under /sys/fs/ that refers to this filesystem;
 * also /sys/kernel/debug/ for filesystems with debugfs exports
 */
#define FS_IOC_GETFSSYSFSPATH		_IOR(0x15, 1, struct fs_sysfs_path)

/*
 * Inode flags (FS_IOC_GETFLAGS / FS_IOC_SETFLAGS)
 *
 * Note: for historical reasons, these flags were originally used and
 * defined for use by ext2/ext3, and then other file systems started
 * using these flags so they wouldn't need to write their own version
 * of chattr/lsattr (which was shipped as part of e2fsprogs).  You
 * should think twice before trying to use these flags in new
 * contexts, or trying to assign these flags, since they are used both
 * as the UAPI and the on-disk encoding for ext2/3/4.  Also, we are
 * almost out of 32-bit flags.  :-)
 *
 * We have recently hoisted FS_IOC_FSGETXATTR / FS_IOC_FSSETXATTR from
 * XFS to the generic FS level interface.  This uses a structure that
 * has padding and hence has more room to grow, so it may be more
 * appropriate for many new use cases.
 *
 * Please do not change these flags or interfaces before checking with
 * linux-fsdevel@vger.kernel.org and linux-api@vger.kernel.org.
 */
#define	FS_SECRM_FL			0x00000001 /* Secure deletion */
#define	FS_UNRM_FL			0x00000002 /* Undelete */
#define	FS_COMPR_FL			0x00000004 /* Compress file */
#define FS_SYNC_FL			0x00000008 /* Synchronous updates */
#define FS_IMMUTABLE_FL			0x00000010 /* Immutable file */
#define FS_APPEND_FL			0x00000020 /* writes to file may only append */
#define FS_NODUMP_FL			0x00000040 /* do not dump file */
#define FS_NOATIME_FL			0x00000080 /* do not update atime */
/* Reserved for compression usage... */
#define FS_DIRTY_FL			0x00000100
#define FS_COMPRBLK_FL			0x00000200 /* One or more compressed clusters */
#define FS_NOCOMP_FL			0x00000400 /* Don't compress */
/* End compression flags --- maybe not all used */
#define FS_ENCRYPT_FL			0x00000800 /* Encrypted file */
#define FS_BTREE_FL			0x00001000 /* btree format dir */
#define FS_INDEX_FL			0x00001000 /* hash-indexed directory */
#define FS_IMAGIC_FL			0x00002000 /* AFS directory */
#define FS_JOURNAL_DATA_FL		0x00004000 /* Reserved for ext3 */
#define FS_NOTAIL_FL			0x00008000 /* file tail should not be merged */
#define FS_DIRSYNC_FL			0x00010000 /* dirsync behaviour (directories only) */
#define FS_TOPDIR_FL			0x00020000 /* Top of directory hierarchies*/
#define FS_HUGE_FILE_FL			0x00040000 /* Reserved for ext4 */
#define FS_EXTENT_FL			0x00080000 /* Extents */
#define FS_VERITY_FL			0x00100000 /* Verity protected inode */
#define FS_EA_INODE_FL			0x00200000 /* Inode used for large EA */
#define FS_EOFBLOCKS_FL			0x00400000 /* Reserved for ext4 */
#define FS_NOCOW_FL			0x00800000 /* Do not cow file */
#define FS_DAX_FL			0x02000000 /* Inode is DAX */
#define FS_INLINE_DATA_FL		0x10000000 /* Reserved for ext4 */
#define FS_PROJINHERIT_FL		0x20000000 /* Create with parents projid */
#define FS_CASEFOLD_FL			0x40000000 /* Folder is case insensitive */
#define FS_RESERVED_FL			0x80000000 /* reserved for ext2 lib */

#define FS_FL_USER_VISIBLE		0x0003DFFF /* User visible flags */
#define FS_FL_USER_MODIFIABLE		0x000380FF /* User modifiable flags */

#define SYNC_FILE_RANGE_WAIT_BEFORE	1
#define SYNC_FILE_RANGE_WRITE		2
#define SYNC_FILE_RANGE_WAIT_AFTER	4
#define SYNC_FILE_RANGE_WRITE_AND_WAIT	(SYNC_FILE_RANGE_WRITE | \
					 SYNC_FILE_RANGE_WAIT_BEFORE | \
					 SYNC_FILE_RANGE_WAIT_AFTER)

/*
 * Flags for preadv2/pwritev2:
 */

typedef int __bitwise __kernel_rwf_t;

/* high priority request, poll if possible */
#define RWF_HIPRI	((__kernel_rwf_t)0x00000001)

/* per-IO O_DSYNC */
#define RWF_DSYNC	((__kernel_rwf_t)0x00000002)

/* per-IO O_SYNC */
#define RWF_SYNC	((__kernel_rwf_t)0x00000004)

/* per-IO, return -EAGAIN if operation would block */
#define RWF_NOWAIT	((__kernel_rwf_t)0x00000008)

/* per-IO O_APPEND */
#define RWF_APPEND	((__kernel_rwf_t)0x00000010)

/* per-IO negation of O_APPEND */
#define RWF_NOAPPEND	((__kernel_rwf_t)0x00000020)

/* Atomic Write */
#define RWF_ATOMIC	((__kernel_rwf_t)0x00000040)

/* mask of flags supported by the kernel */
#define RWF_SUPPORTED	(RWF_HIPRI | RWF_DSYNC | RWF_SYNC | RWF_NOWAIT |\
			 RWF_APPEND | RWF_NOAPPEND | RWF_ATOMIC)

#define PROCFS_IOCTL_MAGIC 'f'

/* Pagemap ioctl */
#define PAGEMAP_SCAN	_IOWR(PROCFS_IOCTL_MAGIC, 16, struct pm_scan_arg)

/* Bitmasks provided in pm_scan_args masks and reported in page_region.categories. */
#define PAGE_IS_WPALLOWED	(1 << 0)
#define PAGE_IS_WRITTEN		(1 << 1)
#define PAGE_IS_FILE		(1 << 2)
#define PAGE_IS_PRESENT		(1 << 3)
#define PAGE_IS_SWAPPED		(1 << 4)
#define PAGE_IS_PFNZERO		(1 << 5)
#define PAGE_IS_HUGE		(1 << 6)
#define PAGE_IS_SOFT_DIRTY	(1 << 7)

/*
 * struct page_region - Page region with flags
 * @start:	Start of the region
 * @end:	End of the region (exclusive)
 * @categories:	PAGE_IS_* category bitmask for the region
 */
struct page_region {
	__u64 start;
	__u64 end;
	__u64 categories;
};

/* Flags for PAGEMAP_SCAN ioctl */
#define PM_SCAN_WP_MATCHING	(1 << 0)	/* Write protect the pages matched. */
#define PM_SCAN_CHECK_WPASYNC	(1 << 1)	/* Abort the scan when a non-WP-enabled page is found. */

/*
 * struct pm_scan_arg - Pagemap ioctl argument
 * @size:		Size of the structure
 * @flags:		Flags for the IOCTL
 * @start:		Starting address of the region
 * @end:		Ending address of the region
 * @walk_end		Address where the scan stopped (written by kernel).
 *			walk_end == end (address tags cleared) informs that the scan completed on entire range.
 * @vec:		Address of page_region struct array for output
 * @vec_len:		Length of the page_region struct array
 * @max_pages:		Optional limit for number of returned pages (0 = disabled)
 * @category_inverted:	PAGE_IS_* categories which values match if 0 instead of 1
 * @category_mask:	Skip pages for which any category doesn't match
 * @category_anyof_mask: Skip pages for which no category matches
 * @return_mask:	PAGE_IS_* categories that are to be reported in `page_region`s returned
 */
struct pm_scan_arg {
	__u64 size;
	__u64 flags;
	__u64 start;
	__u64 end;
	__u64 walk_end;
	__u64 vec;
	__u64 vec_len;
	__u64 max_pages;
	__u64 category_inverted;
	__u64 category_mask;
	__u64 category_anyof_mask;
	__u64 return_mask;
};

/* /proc/<pid>/maps ioctl */
#define PROCMAP_QUERY	_IOWR(PROCFS_IOCTL_MAGIC, 17, struct procmap_query)

enum procmap_query_flags {
	/*
	 * VMA permission flags.
	 *
	 * Can be used as part of procmap_query.query_flags field to look up
	 * only VMAs satisfying specified subset of permissions. E.g., specifying
	 * PROCMAP_QUERY_VMA_READABLE only will return both readable and read/write VMAs,
	 * while having PROCMAP_QUERY_VMA_READABLE | PROCMAP_QUERY_VMA_WRITABLE will only
	 * return read/write VMAs, though both executable/non-executable and
	 * private/shared will be ignored.
	 *
	 * PROCMAP_QUERY_VMA_* flags are also returned in procmap_query.vma_flags
	 * field to specify actual VMA permissions.
	 */
	PROCMAP_QUERY_VMA_READABLE		= 0x01,
	PROCMAP_QUERY_VMA_WRITABLE		= 0x02,
	PROCMAP_QUERY_VMA_EXECUTABLE		= 0x04,
	PROCMAP_QUERY_VMA_SHARED		= 0x08,
	/*
	 * Query modifier flags.
	 *
	 * By default VMA that covers provided address is returned, or -ENOENT
	 * is returned. With PROCMAP_QUERY_COVERING_OR_NEXT_VMA flag set, closest
	 * VMA with vma_start > addr will be returned if no covering VMA is
	 * found.
	 *
	 * PROCMAP_QUERY_FILE_BACKED_VMA instructs query to consider only VMAs that
	 * have file backing. Can be combined with PROCMAP_QUERY_COVERING_OR_NEXT_VMA
	 * to iterate all VMAs with file backing.
	 */
	PROCMAP_QUERY_COVERING_OR_NEXT_VMA	= 0x10,
	PROCMAP_QUERY_FILE_BACKED_VMA		= 0x20,
};

/*
 * Input/output argument structured passed into ioctl() call. It can be used
 * to query a set of VMAs (Virtual Memory Areas) of a process.
 *
 * Each field can be one of three kinds, marked in a short comment to the
 * right of the field:
 *   - "in", input argument, user has to provide this value, kernel doesn't modify it;
 *   - "out", output argument, kernel sets this field with VMA data;
 *   - "in/out", input and output argument; user provides initial value (used
 *     to specify maximum allowable buffer size), and kernel sets it to actual
 *     amount of data written (or zero, if there is no data).
 *
 * If matching VMA is found (according to criterias specified by
 * query_addr/query_flags, all the out fields are filled out, and ioctl()
 * returns 0. If there is no matching VMA, -ENOENT will be returned.
 * In case of any other error, negative error code other than -ENOENT is
 * returned.
 *
 * Most of the data is similar to the one returned as text in /proc/<pid>/maps
 * file, but procmap_query provides more querying flexibility. There are no
 * consistency guarantees between subsequent ioctl() calls, but data returned
 * for matched VMA is self-consistent.
 */
struct procmap_query {
	/* Query struct size, for backwards/forward compatibility */
	__u64 size;
	/*
	 * Query flags, a combination of enum procmap_query_flags values.
	 * Defines query filtering and behavior, see enum procmap_query_flags.
	 *
	 * Input argument, provided by user. Kernel doesn't modify it.
	 */
	__u64 query_flags;		/* in */
	/*
	 * Query address. By default, VMA that covers this address will
	 * be looked up. PROCMAP_QUERY_* flags above modify this default
	 * behavior further.
	 *
	 * Input argument, provided by user. Kernel doesn't modify it.
	 */
	__u64 query_addr;		/* in */
	/* VMA starting (inclusive) and ending (exclusive) address, if VMA is found. */
	__u64 vma_start;		/* out */
	__u64 vma_end;			/* out */
	/* VMA permissions flags. A combination of PROCMAP_QUERY_VMA_* flags. */
	__u64 vma_flags;		/* out */
	/* VMA backing page size granularity. */
	__u64 vma_page_size;		/* out */
	/*
	 * VMA file offset. If VMA has file backing, this specifies offset
	 * within the file that VMA's start address corresponds to.
	 * Is set to zero if VMA has no backing file.
	 */
	__u64 vma_offset;		/* out */
	/* Backing file's inode number, or zero, if VMA has no backing file. */
	__u64 inode;			/* out */
	/* Backing file's device major/minor number, or zero, if VMA has no backing file. */
	__u32 dev_major;		/* out */
	__u32 dev_minor;		/* out */
	/*
	 * If set to non-zero value, signals the request to return VMA name
	 * (i.e., VMA's backing file's absolute path, with " (deleted)" suffix
	 * appended, if file was unlinked from FS) for matched VMA. VMA name
	 * can also be some special name (e.g., "[heap]", "[stack]") or could
	 * be even user-supplied with prctl(PR_SET_VMA, PR_SET_VMA_ANON_NAME).
	 *
	 * Kernel will set this field to zero, if VMA has no associated name.
	 * Otherwise kernel will return actual amount of bytes filled in
	 * user-supplied buffer (see vma_name_addr field below), including the
	 * terminating zero.
	 *
	 * If VMA name is longer that user-supplied maximum buffer size,
	 * -E2BIG error is returned.
	 *
	 * If this field is set to non-zero value, vma_name_addr should point
	 * to valid user space memory buffer of at least vma_name_size bytes.
	 * If set to zero, vma_name_addr should be set to zero as well
	 */
	__u32 vma_name_size;		/* in/out */
	/*
	 * If set to non-zero value, signals the request to extract and return
	 * VMA's backing file's build ID, if the backing file is an ELF file
	 * and it contains embedded build ID.
	 *
	 * Kernel will set this field to zero, if VMA has no backing file,
	 * backing file is not an ELF file, or ELF file has no build ID
	 * embedded.
	 *
	 * Build ID is a binary value (not a string). Kernel will set
	 * build_id_size field to exact number of bytes used for build ID.
	 * If build ID is requested and present, but needs more bytes than
	 * user-supplied maximum buffer size (see build_id_addr field below),
	 * -E2BIG error will be returned.
	 *
	 * If this field is set to non-zero value, build_id_addr should point
	 * to valid user space memory buffer of at least build_id_size bytes.
	 * If set to zero, build_id_addr should be set to zero as well
	 */
	__u32 build_id_size;		/* in/out */
	/*
	 * User-supplied address of a buffer of at least vma_name_size bytes
	 * for kernel to fill with matched VMA's name (see vma_name_size field
	 * description above for details).
	 *
	 * Should be set to zero if VMA name should not be returned.
	 */
	__u64 vma_name_addr;		/* in */
	/*
	 * User-supplied address of a buffer of at least build_id_size bytes
	 * for kernel to fill with matched VMA's ELF build ID, if available
	 * (see build_id_size field description above for details).
	 *
	 * Should be set to zero if build ID should not be returned.
	 */
	__u64 build_id_addr;		/* in */
};

#endif /* _LINUX_FS_H */

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