[v7 0/5] ext4: add project quota support

3 messages, 2 authors, 2014-11-22 · open the first message on its own page

[v7 0/5] ext4: add project quota support

From: Li Xi <hidden>
Date: 2014-11-22 05:24:50

The following patches propose an implementation of project quota
support for ext4. A project is an aggregate of unrelated inodes
which might scatter in different directories. Inodes that belong
to the same project possess an identical identification i.e.
'project ID', just like every inode has its user/group
identification. The following patches add project quota as
supplement to the former uer/group quota types.

The semantics of ext4 project quota is consistent with XFS. Each
directory can have EXT4_INODE_PROJINHERIT flag set. When the
EXT4_INODE_PROJINHERIT flag of a parent directory is not set, a
newly created inode under that directory will have a default project
ID (i.e. 0). And its EXT4_INODE_PROJINHERIT flag is not set either.
When this flag is set on a directory, following rules will be kept:

1) The newly created inode under that directory will inherit both
the EXT4_INODE_PROJINHERIT flag and the project ID from its parent
directory.

2) Hard-linking a inode with different project ID into that directory
will fail with errno EXDEV.

3) Renaming a inode with different project ID into that directory
will fail with errno EXDEV. However, 'mv' command will detect this
failure and copy the renamed inode to a new inode in the directory.
Thus, this new inode will inherit both the project ID and
EXT4_INODE_PROJINHERIT flag.

4) If the project quota of that ID is being enforced, statfs() on
that directory will take the quotas as another upper limits along
with the capacity of the file system, i.e. the total block/inode
number will be the minimum of the quota limits and file system
capacity.

Changelog:
* v7 <- v6:
 - Map ext4 inode flags to xflags of struct fsxattr;
 - Add patch to cleanup ext4 inode flag definitions
* v6 <- v5:
 - Add project ID check for cross rename;
 - Remove patch of EXT4_IOC_GETPROJECT/EXT4_IOC_SETPROJECT ioctl
* v5 <- v4:
 - Check project feature when set/get project ID;
 - Do not check project feature for project quota;
 - Add support of FS_IOC_FSSETXATTR/FS_IOC_FSGETXATTR.
* v4 <- v3:
 - Do not check project feature when set/get project ID;
 - Use EXT4_MAXQUOTAS instead of MAXQUOTAS in ext4 patches;
 - Remove unnecessary change of fs/quota/dquot.c;
 - Remove CONFIG_QUOTA_PROJECT.
* v3 <- v2:
 - Add EXT4_INODE_PROJINHERIT semantics.
* v2 <- v1:
 - Add ioctl interface for setting/getting project;
 - Add EXT4_FEATURE_RO_COMPAT_PROJECT;
 - Add get_projid() method in struct dquot_operations;
 - Add error check of ext4_inode_projid_set/get().

v6: http://www.spinics.net/lists/linux-fsdevel/msg80022.html
v5: http://www.spinics.net/lists/linux-api/msg04840.html
v4: http://lwn.net/Articles/612972/
v3: http://www.spinics.net/lists/linux-ext4/msg45184.html
v2: http://www.spinics.net/lists/linux-ext4/msg44695.html
v1: http://article.gmane.org/gmane.comp.file-systems.ext4/45153

Any comments or feedbacks are appreciated.

Regards,
                                         - Li Xi

Li Xi (5):
  vfs: adds general codes to enforces project quota limits
  ext4: adds project ID support
  ext4: adds project quota support
  ext4: adds FS_IOC_FSSETXATTR/FS_IOC_FSGETXATTR interface support
  ext4: cleanup inode flag definitions

 fs/ext4/ext4.h             |  190 +++++++++++++++++++++----
 fs/ext4/ialloc.c           |    6 +
 fs/ext4/inode.c            |   29 ++++
 fs/ext4/ioctl.c            |  330 +++++++++++++++++++++++++++++++-------------
 fs/ext4/namei.c            |   17 +++
 fs/ext4/super.c            |   96 +++++++++++--
 fs/quota/dquot.c           |   35 ++++-
 fs/quota/quota.c           |    8 +-
 fs/quota/quotaio_v2.h      |    6 +-
 fs/xfs/xfs_fs.h            |   47 +++----
 include/linux/quota.h      |    2 +
 include/uapi/linux/fs.h    |   59 ++++++++
 include/uapi/linux/quota.h |    6 +-
 13 files changed, 650 insertions(+), 181 deletions(-)

[v7 3/5] ext4: adds project quota support

From: Li Xi <hidden>
Date: 2014-11-22 05:24:53

This patch adds mount options for enabling/disabling project quota
accounting and enforcement. A new specific inode is also used for
project quota accounting.

Signed-off-by: Li Xi <redacted>
Signed-off-by: Dmitry Monakhov <redacted>
Reviewed-by: Jan Kara <jack@suse.cz>
---
 fs/ext4/ext4.h  |    8 +++-
 fs/ext4/super.c |   95 ++++++++++++++++++++++++++++++++++++++++++++++++------
 2 files changed, 90 insertions(+), 13 deletions(-)

diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 505b9fb..67d4879 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h

@@ -217,6 +217,7 @@ struct ext4_io_submit {
 #define EXT4_UNDEL_DIR_INO	 6	/* Undelete directory inode */
 #define EXT4_RESIZE_INO		 7	/* Reserved group descriptors inode */
 #define EXT4_JOURNAL_INO	 8	/* Journal inode */
+#define EXT4_PRJ_QUOTA_INO	 9	/* Project quota inode */
 
 /* First non-reserved inode for old ext4 filesystems */
 #define EXT4_GOOD_OLD_FIRST_INO	11

@@ -991,6 +992,7 @@ struct ext4_inode_info {
 #define EXT4_MOUNT_DIOREAD_NOLOCK	0x400000 /* Enable support for dio read nolocking */
 #define EXT4_MOUNT_JOURNAL_CHECKSUM	0x800000 /* Journal checksums */
 #define EXT4_MOUNT_JOURNAL_ASYNC_COMMIT	0x1000000 /* Journal Async Commit */
+#define EXT4_MOUNT_PRJQUOTA		0x2000000 /* Project quota support */
 #define EXT4_MOUNT_DELALLOC		0x8000000 /* Delalloc support */
 #define EXT4_MOUNT_DATA_ERR_ABORT	0x10000000 /* Abort on file data write */
 #define EXT4_MOUNT_BLOCK_VALIDITY	0x20000000 /* Block validity checking */

@@ -1166,7 +1168,8 @@ struct ext4_super_block {
 	__le32	s_grp_quota_inum;	/* inode for tracking group quota */
 	__le32	s_overhead_clusters;	/* overhead blocks/clusters in fs */
 	__le32	s_backup_bgs[2];	/* groups with sparse_super2 SBs */
-	__le32	s_reserved[106];	/* Padding to the end of the block */
+	__le32	s_prj_quota_inum;	/* inode for tracking project quota */
+	__le32	s_reserved[105];	/* Padding to the end of the block */
 	__le32	s_checksum;		/* crc32c(superblock) */
 };

@@ -1181,7 +1184,7 @@ struct ext4_super_block {
 #define EXT4_MF_FS_ABORTED	0x0002	/* Fatal error detected */
 
 /* Number of quota types we support */
-#define EXT4_MAXQUOTAS 2
+#define EXT4_MAXQUOTAS 3
 
 /*
  * fourth extended-fs super-block data in memory

@@ -1372,6 +1375,7 @@ static inline int ext4_valid_inum(struct super_block *sb, unsigned long ino)
 		ino == EXT4_BOOT_LOADER_INO ||
 		ino == EXT4_JOURNAL_INO ||
 		ino == EXT4_RESIZE_INO ||
+		ino == EXT4_PRJ_QUOTA_INO ||
 		(ino >= EXT4_FIRST_INO(sb) &&
 		 ino <= le32_to_cpu(EXT4_SB(sb)->s_es->s_inodes_count));
 }

diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index d8a348d..564fbd7 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c

@@ -1045,8 +1045,8 @@ static int bdev_try_to_free_page(struct super_block *sb, struct page *page,
 }
 
 #ifdef CONFIG_QUOTA
-#define QTYPE2NAME(t) ((t) == USRQUOTA ? "user" : "group")
-#define QTYPE2MOPT(on, t) ((t) == USRQUOTA?((on)##USRJQUOTA):((on)##GRPJQUOTA))
+static char *quotatypes[] = INITQFNAMES;
+#define QTYPE2NAME(t) (quotatypes[t])
 
 static int ext4_write_dquot(struct dquot *dquot);
 static int ext4_acquire_dquot(struct dquot *dquot);

@@ -1138,10 +1138,11 @@ enum {
 	Opt_journal_path, Opt_journal_checksum, Opt_journal_async_commit,
 	Opt_abort, Opt_data_journal, Opt_data_ordered, Opt_data_writeback,
 	Opt_data_err_abort, Opt_data_err_ignore,
-	Opt_usrjquota, Opt_grpjquota, Opt_offusrjquota, Opt_offgrpjquota,
+	Opt_usrjquota, Opt_grpjquota, Opt_prjjquota,
+	Opt_offusrjquota, Opt_offgrpjquota, Opt_offprjjquota,
 	Opt_jqfmt_vfsold, Opt_jqfmt_vfsv0, Opt_jqfmt_vfsv1, Opt_quota,
 	Opt_noquota, Opt_barrier, Opt_nobarrier, Opt_err,
-	Opt_usrquota, Opt_grpquota, Opt_i_version,
+	Opt_usrquota, Opt_grpquota, Opt_prjquota, Opt_i_version,
 	Opt_stripe, Opt_delalloc, Opt_nodelalloc, Opt_mblk_io_submit,
 	Opt_nomblk_io_submit, Opt_block_validity, Opt_noblock_validity,
 	Opt_inode_readahead_blks, Opt_journal_ioprio,

@@ -1192,6 +1193,8 @@ static const match_table_t tokens = {
 	{Opt_usrjquota, "usrjquota=%s"},
 	{Opt_offgrpjquota, "grpjquota="},
 	{Opt_grpjquota, "grpjquota=%s"},
+	{Opt_offprjjquota, "prjjquota="},
+	{Opt_prjjquota, "prjjquota=%s"},
 	{Opt_jqfmt_vfsold, "jqfmt=vfsold"},
 	{Opt_jqfmt_vfsv0, "jqfmt=vfsv0"},
 	{Opt_jqfmt_vfsv1, "jqfmt=vfsv1"},

@@ -1199,6 +1202,7 @@ static const match_table_t tokens = {
 	{Opt_noquota, "noquota"},
 	{Opt_quota, "quota"},
 	{Opt_usrquota, "usrquota"},
+	{Opt_prjquota, "prjquota"},
 	{Opt_barrier, "barrier=%u"},
 	{Opt_barrier, "barrier"},
 	{Opt_nobarrier, "nobarrier"},

@@ -1411,12 +1415,17 @@ static const struct mount_opts {
 							MOPT_SET | MOPT_Q},
 	{Opt_grpquota, EXT4_MOUNT_QUOTA | EXT4_MOUNT_GRPQUOTA,
 							MOPT_SET | MOPT_Q},
+	{Opt_prjquota, EXT4_MOUNT_QUOTA | EXT4_MOUNT_PRJQUOTA,
+							MOPT_SET | MOPT_Q},
 	{Opt_noquota, (EXT4_MOUNT_QUOTA | EXT4_MOUNT_USRQUOTA |
-		       EXT4_MOUNT_GRPQUOTA), MOPT_CLEAR | MOPT_Q},
+		       EXT4_MOUNT_GRPQUOTA | EXT4_MOUNT_PRJQUOTA),
+							MOPT_CLEAR | MOPT_Q},
 	{Opt_usrjquota, 0, MOPT_Q},
 	{Opt_grpjquota, 0, MOPT_Q},
+	{Opt_prjjquota, 0, MOPT_Q},
 	{Opt_offusrjquota, 0, MOPT_Q},
 	{Opt_offgrpjquota, 0, MOPT_Q},
+	{Opt_offprjjquota, 0, MOPT_Q},
 	{Opt_jqfmt_vfsold, QFMT_VFS_OLD, MOPT_QFMT},
 	{Opt_jqfmt_vfsv0, QFMT_VFS_V0, MOPT_QFMT},
 	{Opt_jqfmt_vfsv1, QFMT_VFS_V1, MOPT_QFMT},

@@ -1439,10 +1448,14 @@ static int handle_mount_opt(struct super_block *sb, char *opt, int token,
 		return set_qf_name(sb, USRQUOTA, &args[0]);
 	else if (token == Opt_grpjquota)
 		return set_qf_name(sb, GRPQUOTA, &args[0]);
+	else if (token == Opt_prjjquota)
+		return set_qf_name(sb, PRJQUOTA, &args[0]);
 	else if (token == Opt_offusrjquota)
 		return clear_qf_name(sb, USRQUOTA);
 	else if (token == Opt_offgrpjquota)
 		return clear_qf_name(sb, GRPQUOTA);
+	else if (token == Opt_offprjjquota)
+		return clear_qf_name(sb, PRJQUOTA);
 #endif
 	switch (token) {
 	case Opt_noacl:

@@ -1668,19 +1681,28 @@ static int parse_options(char *options, struct super_block *sb,
 	}
 #ifdef CONFIG_QUOTA
 	if (EXT4_HAS_RO_COMPAT_FEATURE(sb, EXT4_FEATURE_RO_COMPAT_QUOTA) &&
-	    (test_opt(sb, USRQUOTA) || test_opt(sb, GRPQUOTA))) {
+	    (test_opt(sb, USRQUOTA) ||
+	     test_opt(sb, GRPQUOTA) ||
+	     test_opt(sb, PRJQUOTA))) {
 		ext4_msg(sb, KERN_ERR, "Cannot set quota options when QUOTA "
 			 "feature is enabled");
 		return 0;
 	}
-	if (sbi->s_qf_names[USRQUOTA] || sbi->s_qf_names[GRPQUOTA]) {
+	if (sbi->s_qf_names[USRQUOTA] ||
+	    sbi->s_qf_names[GRPQUOTA] ||
+	    sbi->s_qf_names[PRJQUOTA]) {
 		if (test_opt(sb, USRQUOTA) && sbi->s_qf_names[USRQUOTA])
 			clear_opt(sb, USRQUOTA);
 
 		if (test_opt(sb, GRPQUOTA) && sbi->s_qf_names[GRPQUOTA])
 			clear_opt(sb, GRPQUOTA);
 
-		if (test_opt(sb, GRPQUOTA) || test_opt(sb, USRQUOTA)) {
+		if (test_opt(sb, PRJQUOTA) && sbi->s_qf_names[PRJQUOTA])
+			clear_opt(sb, PRJQUOTA);
+
+		if (test_opt(sb, GRPQUOTA) ||
+		    test_opt(sb, USRQUOTA) ||
+		    test_opt(sb, PRJQUOTA)) {
 			ext4_msg(sb, KERN_ERR, "old and new quota "
 					"format mixing");
 			return 0;

@@ -1734,6 +1756,9 @@ static inline void ext4_show_quota_options(struct seq_file *seq,
 
 	if (sbi->s_qf_names[GRPQUOTA])
 		seq_printf(seq, ",grpjquota=%s", sbi->s_qf_names[GRPQUOTA]);
+
+	if (sbi->s_qf_names[PRJQUOTA])
+		seq_printf(seq, ",prjjquota=%s", sbi->s_qf_names[PRJQUOTA]);
 #endif
 }

@@ -5030,6 +5055,46 @@ restore_opts:
 	return err;
 }
 
+static int ext4_statfs_project(struct super_block *sb,
+			       kprojid_t projid, struct kstatfs *buf)
+{
+	struct kqid qid;
+	struct dquot *dquot;
+	u64 limit;
+	u64 curblock;
+
+	qid = make_kqid_projid(projid);
+	dquot = dqget(sb, qid);
+	if (!dquot)
+		return -ESRCH;
+	spin_lock(&dq_data_lock);
+
+	limit = dquot->dq_dqb.dqb_bsoftlimit ?
+		dquot->dq_dqb.dqb_bsoftlimit :
+		dquot->dq_dqb.dqb_bhardlimit;
+	if (limit && buf->f_blocks * buf->f_bsize > limit) {
+		curblock = dquot->dq_dqb.dqb_curspace / buf->f_bsize;
+		buf->f_blocks = limit / buf->f_bsize;
+		buf->f_bfree = buf->f_bavail =
+			(buf->f_blocks > curblock) ?
+			 (buf->f_blocks - curblock) : 0;
+	}
+
+	limit = dquot->dq_dqb.dqb_isoftlimit ?
+		dquot->dq_dqb.dqb_isoftlimit :
+		dquot->dq_dqb.dqb_ihardlimit;
+	if (limit && buf->f_files > limit) {
+		buf->f_files = limit;
+		buf->f_ffree =
+			(buf->f_files > dquot->dq_dqb.dqb_curinodes) ?
+			 (buf->f_files - dquot->dq_dqb.dqb_curinodes) : 0;
+	}
+
+	spin_unlock(&dq_data_lock);
+	dqput(dquot);
+	return 0;
+}
+
 static int ext4_statfs(struct dentry *dentry, struct kstatfs *buf)
 {
 	struct super_block *sb = dentry->d_sb;

@@ -5038,6 +5103,7 @@ static int ext4_statfs(struct dentry *dentry, struct kstatfs *buf)
 	ext4_fsblk_t overhead = 0, resv_blocks;
 	u64 fsid;
 	s64 bfree;
+	struct inode *inode = dentry->d_inode;
 	resv_blocks = EXT4_C2B(sbi, atomic64_read(&sbi->s_resv_clusters));
 
 	if (!test_opt(sb, MINIX_DF))

@@ -5062,6 +5128,9 @@ static int ext4_statfs(struct dentry *dentry, struct kstatfs *buf)
 	buf->f_fsid.val[0] = fsid & 0xFFFFFFFFUL;
 	buf->f_fsid.val[1] = (fsid >> 32) & 0xFFFFFFFFUL;
 
+	if (ext4_test_inode_flag(inode, EXT4_INODE_PROJINHERIT) &&
+	    sb_has_quota_limits_enabled(sb, PRJQUOTA))
+		ext4_statfs_project(sb, EXT4_I(inode)->i_projid, buf);
 	return 0;
 }

@@ -5142,7 +5211,9 @@ static int ext4_mark_dquot_dirty(struct dquot *dquot)
 
 	/* Are we journaling quotas? */
 	if (EXT4_HAS_RO_COMPAT_FEATURE(sb, EXT4_FEATURE_RO_COMPAT_QUOTA) ||
-	    sbi->s_qf_names[USRQUOTA] || sbi->s_qf_names[GRPQUOTA]) {
+	    sbi->s_qf_names[USRQUOTA] ||
+	    sbi->s_qf_names[GRPQUOTA] ||
+	    sbi->s_qf_names[PRJQUOTA]) {
 		dquot_mark_dquot_dirty(dquot);
 		return ext4_write_dquot(dquot);
 	} else {

@@ -5226,7 +5297,8 @@ static int ext4_quota_enable(struct super_block *sb, int type, int format_id,
 	struct inode *qf_inode;
 	unsigned long qf_inums[EXT4_MAXQUOTAS] = {
 		le32_to_cpu(EXT4_SB(sb)->s_es->s_usr_quota_inum),
-		le32_to_cpu(EXT4_SB(sb)->s_es->s_grp_quota_inum)
+		le32_to_cpu(EXT4_SB(sb)->s_es->s_grp_quota_inum),
+		le32_to_cpu(EXT4_SB(sb)->s_es->s_prj_quota_inum)
 	};
 
 	BUG_ON(!EXT4_HAS_RO_COMPAT_FEATURE(sb, EXT4_FEATURE_RO_COMPAT_QUOTA));

@@ -5254,7 +5326,8 @@ static int ext4_enable_quotas(struct super_block *sb)
 	int type, err = 0;
 	unsigned long qf_inums[EXT4_MAXQUOTAS] = {
 		le32_to_cpu(EXT4_SB(sb)->s_es->s_usr_quota_inum),
-		le32_to_cpu(EXT4_SB(sb)->s_es->s_grp_quota_inum)
+		le32_to_cpu(EXT4_SB(sb)->s_es->s_grp_quota_inum),
+		le32_to_cpu(EXT4_SB(sb)->s_es->s_prj_quota_inum)
 	};
 
 	sb_dqopt(sb)->flags |= DQUOT_QUOTA_SYS_FILE;

-- 
1.7.1

[v7 4/5] ext4: adds FS_IOC_FSSETXATTR/FS_IOC_FSGETXATTR interface support

From: Li Xi <hidden>
Date: 2014-11-22 05:26:54

This patch adds FS_IOC_FSSETXATTR/FS_IOC_FSGETXATTR ioctl interface
support for ext4. The interface is kept consistent with
XFS_IOC_FSGETXATTR/XFS_IOC_FSGETXATTR.

Signed-off-by: Li Xi <redacted>
---
 fs/ext4/ext4.h          |  111 ++++++++++++++++
 fs/ext4/ioctl.c         |  330 +++++++++++++++++++++++++++++++++--------------
 fs/xfs/xfs_fs.h         |   47 +++-----
 include/uapi/linux/fs.h |   58 ++++++++
 4 files changed, 418 insertions(+), 128 deletions(-)

diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 67d4879..542b388 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h

@@ -393,6 +393,115 @@ struct flex_groups {
 #define EXT4_FL_USER_VISIBLE		0x204BDFFF /* User visible flags */
 #define EXT4_FL_USER_MODIFIABLE		0x204380FF /* User modifiable flags */
 
+/* Transfer internal flags to xflags */
+static inline __u32 ext4_iflags_to_xflags(unsigned long iflags)
+{
+	__u32 xflags = 0;
+
+	if (iflags & EXT4_SECRM_FL)
+		xflags |= FS_XFLAG_SECRM;
+	if (iflags & EXT4_UNRM_FL)
+		xflags |= FS_XFLAG_UNRM;
+	if (iflags & EXT4_COMPR_FL)
+		xflags |= FS_XFLAG_COMPR;
+	if (iflags & EXT4_SYNC_FL)
+		xflags |= FS_XFLAG_SYNC;
+	if (iflags & EXT4_IMMUTABLE_FL)
+		xflags |= FS_XFLAG_IMMUTABLE;
+	if (iflags & EXT4_APPEND_FL)
+		xflags |= FS_XFLAG_APPEND;
+	if (iflags & EXT4_NODUMP_FL)
+		xflags |= FS_XFLAG_NODUMP;
+	if (iflags & EXT4_NOATIME_FL)
+		xflags |= FS_XFLAG_NOATIME;
+	if (iflags & EXT4_COMPRBLK_FL)
+		xflags |= FS_XFLAG_COMPRBLK;
+	if (iflags & EXT4_NOCOMPR_FL)
+		xflags |= FS_XFLAG_NOCOMPR;
+	if (iflags & EXT4_ECOMPR_FL)
+		xflags |= FS_XFLAG_ECOMPR;
+	if (iflags & EXT4_INDEX_FL)
+		xflags |= FS_XFLAG_INDEX;
+	if (iflags & EXT4_IMAGIC_FL)
+		xflags |= FS_XFLAG_IMAGIC;
+	if (iflags & EXT4_JOURNAL_DATA_FL)
+		xflags |= FS_XFLAG_JOURNAL_DATA;
+	if (iflags & EXT4_NOTAIL_FL)
+		xflags |= FS_XFLAG_NOTAIL;
+	if (iflags & EXT4_DIRSYNC_FL)
+		xflags |= FS_XFLAG_DIRSYNC;
+	if (iflags & EXT4_TOPDIR_FL)
+		xflags |= FS_XFLAG_TOPDIR;
+	if (iflags & EXT4_HUGE_FILE_FL)
+		xflags |= FS_XFLAG_HUGE_FILE;
+	if (iflags & EXT4_EXTENTS_FL)
+		xflags |= FS_XFLAG_EXTENTS;
+	if (iflags & EXT4_EA_INODE_FL)
+		xflags |= FS_XFLAG_EA_INODE;
+	if (iflags & EXT4_EOFBLOCKS_FL)
+		xflags |= FS_XFLAG_EOFBLOCKS;
+	if (iflags & EXT4_INLINE_DATA_FL)
+		xflags |= FS_XFLAG_INLINE_DATA;
+	if (iflags & EXT4_PROJINHERIT_FL)
+		xflags |= FS_XFLAG_PROJINHERIT;
+	return xflags;
+}
+
+/* Transfer xflags flags to internal */
+static inline unsigned long ext4_xflags_to_iflags(__u32 xflags)
+{
+	unsigned long iflags = 0;
+
+	if (xflags & FS_XFLAG_SECRM)
+		iflags |= EXT4_SECRM_FL;
+	if (xflags & FS_XFLAG_UNRM)
+		iflags |= EXT4_UNRM_FL;
+	if (xflags & FS_XFLAG_COMPR)
+		iflags |= EXT4_COMPR_FL;
+	if (xflags & FS_XFLAG_SYNC)
+		iflags |= EXT4_SYNC_FL;
+	if (xflags & FS_XFLAG_IMMUTABLE)
+		iflags |= EXT4_IMMUTABLE_FL;
+	if (xflags & FS_XFLAG_APPEND)
+		iflags |= EXT4_APPEND_FL;
+	if (xflags & FS_XFLAG_NODUMP)
+		iflags |= EXT4_NODUMP_FL;
+	if (xflags & FS_XFLAG_NOATIME)
+		iflags |= EXT4_NOATIME_FL;
+	if (xflags & FS_XFLAG_COMPRBLK)
+		iflags |= EXT4_COMPRBLK_FL;
+	if (xflags & FS_XFLAG_NOCOMPR)
+		iflags |= EXT4_NOCOMPR_FL;
+	if (xflags & FS_XFLAG_ECOMPR)
+		iflags |= EXT4_ECOMPR_FL;
+	if (xflags & FS_XFLAG_INDEX)
+		iflags |= EXT4_INDEX_FL;
+	if (xflags & FS_XFLAG_IMAGIC)
+		iflags |= EXT4_IMAGIC_FL;
+	if (xflags & FS_XFLAG_JOURNAL_DATA)
+		iflags |= EXT4_JOURNAL_DATA_FL;
+	if (xflags & FS_XFLAG_IMAGIC)
+		iflags |= FS_XFLAG_NOTAIL;
+	if (xflags & FS_XFLAG_DIRSYNC)
+		iflags |= EXT4_DIRSYNC_FL;
+	if (xflags & FS_XFLAG_TOPDIR)
+		iflags |= EXT4_TOPDIR_FL;
+	if (xflags & FS_XFLAG_HUGE_FILE)
+		iflags |= EXT4_HUGE_FILE_FL;
+	if (xflags & FS_XFLAG_EXTENTS)
+		iflags |= EXT4_EXTENTS_FL;
+	if (xflags & FS_XFLAG_EA_INODE)
+		iflags |= EXT4_EA_INODE_FL;
+	if (xflags & FS_XFLAG_EOFBLOCKS)
+		iflags |= EXT4_EOFBLOCKS_FL;
+	if (xflags & FS_XFLAG_INLINE_DATA)
+		iflags |= EXT4_INLINE_DATA_FL;
+	if (xflags & FS_XFLAG_PROJINHERIT)
+		iflags |= EXT4_PROJINHERIT_FL;
+
+	return iflags;
+}
+
 /* Flags that should be inherited by new inodes from their parent. */
 #define EXT4_FL_INHERITED (EXT4_SECRM_FL | EXT4_UNRM_FL | EXT4_COMPR_FL |\
 			   EXT4_SYNC_FL | EXT4_NODUMP_FL | EXT4_NOATIME_FL |\

@@ -617,6 +726,8 @@ enum {
 #define EXT4_IOC_RESIZE_FS		_IOW('f', 16, __u64)
 #define EXT4_IOC_SWAP_BOOT		_IO('f', 17)
 #define EXT4_IOC_PRECACHE_EXTENTS	_IO('f', 18)
+#define EXT4_IOC_FSGETXATTR		FS_IOC_FSGETXATTR
+#define EXT4_IOC_FSSETXATTR		FS_IOC_FSSETXATTR
 
 #if defined(__KERNEL__) && defined(CONFIG_COMPAT)
 /*

diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c
index bfda18a..5df969f 100644
--- a/fs/ext4/ioctl.c
+++ b/fs/ext4/ioctl.c

@@ -14,6 +14,8 @@
 #include <linux/compat.h>
 #include <linux/mount.h>
 #include <linux/file.h>
+#include <linux/quotaops.h>
+#include <linux/quota.h>
 #include <asm/uaccess.h>
 #include "ext4_jbd2.h"
 #include "ext4.h"

@@ -198,126 +200,220 @@ journal_err_out:
 	return err;
 }
 
-long ext4_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
+static int ext4_ioctl_setflags(struct file *filp, unsigned int flags)
 {
 	struct inode *inode = file_inode(filp);
-	struct super_block *sb = inode->i_sb;
 	struct ext4_inode_info *ei = EXT4_I(inode);
-	unsigned int flags;
+	handle_t *handle = NULL;
+	int err, migrate = 0;
+	struct ext4_iloc iloc;
+	unsigned int oldflags, mask, i;
+	unsigned int jflag;
 
-	ext4_debug("cmd = %u, arg = %lu\n", cmd, arg);
+	if (!inode_owner_or_capable(inode))
+		return -EACCES;
 
-	switch (cmd) {
-	case EXT4_IOC_GETFLAGS:
-		ext4_get_inode_flags(ei);
-		flags = ei->i_flags & EXT4_FL_USER_VISIBLE;
-		return put_user(flags, (int __user *) arg);
-	case EXT4_IOC_SETFLAGS: {
-		handle_t *handle = NULL;
-		int err, migrate = 0;
-		struct ext4_iloc iloc;
-		unsigned int oldflags, mask, i;
-		unsigned int jflag;
+	err = mnt_want_write_file(filp);
+	if (err)
+		return err;
 
-		if (!inode_owner_or_capable(inode))
-			return -EACCES;
+	flags = ext4_mask_flags(inode->i_mode, flags);
 
-		if (get_user(flags, (int __user *) arg))
-			return -EFAULT;
+	err = -EPERM;
+	mutex_lock(&inode->i_mutex);
+	/* Is it quota file? Do not allow user to mess with it */
+	if (IS_NOQUOTA(inode))
+		goto flags_out;
 
-		err = mnt_want_write_file(filp);
-		if (err)
-			return err;
+	oldflags = ei->i_flags;
 
-		flags = ext4_mask_flags(inode->i_mode, flags);
+	/* The JOURNAL_DATA flag is modifiable only by root */
+	jflag = flags & EXT4_JOURNAL_DATA_FL;
 
-		err = -EPERM;
-		mutex_lock(&inode->i_mutex);
-		/* Is it quota file? Do not allow user to mess with it */
-		if (IS_NOQUOTA(inode))
+	/*
+	 * The IMMUTABLE and APPEND_ONLY flags can only be changed by
+	 * the relevant capability.
+	 *
+	 * This test looks nicer. Thanks to Pauline Middelink
+	 */
+	if ((flags ^ oldflags) & (EXT4_APPEND_FL | EXT4_IMMUTABLE_FL)) {
+		if (!capable(CAP_LINUX_IMMUTABLE))
 			goto flags_out;
+	}
 
-		oldflags = ei->i_flags;
-
-		/* The JOURNAL_DATA flag is modifiable only by root */
-		jflag = flags & EXT4_JOURNAL_DATA_FL;
-
-		/*
-		 * The IMMUTABLE and APPEND_ONLY flags can only be changed by
-		 * the relevant capability.
-		 *
-		 * This test looks nicer. Thanks to Pauline Middelink
-		 */
-		if ((flags ^ oldflags) & (EXT4_APPEND_FL | EXT4_IMMUTABLE_FL)) {
-			if (!capable(CAP_LINUX_IMMUTABLE))
-				goto flags_out;
-		}
-
-		/*
-		 * The JOURNAL_DATA flag can only be changed by
-		 * the relevant capability.
-		 */
-		if ((jflag ^ oldflags) & (EXT4_JOURNAL_DATA_FL)) {
-			if (!capable(CAP_SYS_RESOURCE))
-				goto flags_out;
-		}
-		if ((flags ^ oldflags) & EXT4_EXTENTS_FL)
-			migrate = 1;
-
+	/*
+	 * The JOURNAL_DATA flag can only be changed by
+	 * the relevant capability.
+	 */
+	if ((jflag ^ oldflags) & (EXT4_JOURNAL_DATA_FL)) {
+		if (!capable(CAP_SYS_RESOURCE))
+			goto flags_out;
+	}
+	if ((flags ^ oldflags) & EXT4_EXTENTS_FL)
+		migrate = 1;
 		if (flags & EXT4_EOFBLOCKS_FL) {
-			/* we don't support adding EOFBLOCKS flag */
-			if (!(oldflags & EXT4_EOFBLOCKS_FL)) {
-				err = -EOPNOTSUPP;
-				goto flags_out;
-			}
-		} else if (oldflags & EXT4_EOFBLOCKS_FL)
-			ext4_truncate(inode);
-
-		handle = ext4_journal_start(inode, EXT4_HT_INODE, 1);
-		if (IS_ERR(handle)) {
-			err = PTR_ERR(handle);
+		/* we don't support adding EOFBLOCKS flag */
+		if (!(oldflags & EXT4_EOFBLOCKS_FL)) {
+			err = -EOPNOTSUPP;
 			goto flags_out;
 		}
-		if (IS_SYNC(inode))
-			ext4_handle_sync(handle);
-		err = ext4_reserve_inode_write(handle, inode, &iloc);
-		if (err)
-			goto flags_err;
-
-		for (i = 0, mask = 1; i < 32; i++, mask <<= 1) {
-			if (!(mask & EXT4_FL_USER_MODIFIABLE))
-				continue;
-			if (mask & flags)
-				ext4_set_inode_flag(inode, i);
-			else
-				ext4_clear_inode_flag(inode, i);
-		}
+	} else if (oldflags & EXT4_EOFBLOCKS_FL)
+		ext4_truncate(inode);
 
-		ext4_set_inode_flags(inode);
-		inode->i_ctime = ext4_current_time(inode);
+	handle = ext4_journal_start(inode, EXT4_HT_INODE, 1);
+	if (IS_ERR(handle)) {
+		err = PTR_ERR(handle);
+		goto flags_out;
+	}
+	if (IS_SYNC(inode))
+		ext4_handle_sync(handle);
+	err = ext4_reserve_inode_write(handle, inode, &iloc);
+	if (err)
+		goto flags_err;
+
+	for (i = 0, mask = 1; i < 32; i++, mask <<= 1) {
+		if (!(mask & EXT4_FL_USER_MODIFIABLE))
+			continue;
+		if (mask & flags)
+			ext4_set_inode_flag(inode, i);
+		else
+			ext4_clear_inode_flag(inode, i);
+	}
 
-		err = ext4_mark_iloc_dirty(handle, inode, &iloc);
-flags_err:
-		ext4_journal_stop(handle);
-		if (err)
-			goto flags_out;
+	ext4_set_inode_flags(inode);
+	inode->i_ctime = ext4_current_time(inode);
 
-		if ((jflag ^ oldflags) & (EXT4_JOURNAL_DATA_FL))
-			err = ext4_change_inode_journal_flag(inode, jflag);
-		if (err)
-			goto flags_out;
-		if (migrate) {
-			if (flags & EXT4_EXTENTS_FL)
-				err = ext4_ext_migrate(inode);
-			else
-				err = ext4_ind_migrate(inode);
-		}
+	err = ext4_mark_iloc_dirty(handle, inode, &iloc);
+flags_err:
+	ext4_journal_stop(handle);
+	if (err)
+		goto flags_out;
+
+	if ((jflag ^ oldflags) & (EXT4_JOURNAL_DATA_FL))
+		err = ext4_change_inode_journal_flag(inode, jflag);
+	if (err)
+		goto flags_out;
+	if (migrate) {
+		if (flags & EXT4_EXTENTS_FL)
+			err = ext4_ext_migrate(inode);
+		else
+			err = ext4_ind_migrate(inode);
+	}
 
 flags_out:
-		mutex_unlock(&inode->i_mutex);
-		mnt_drop_write_file(filp);
+	mutex_unlock(&inode->i_mutex);
+	mnt_drop_write_file(filp);
+	return err;
+}
+
+static int ext4_ioctl_setproject(struct file *filp, __u32 projid)
+{
+	struct inode *inode = file_inode(filp);
+	struct super_block *sb = inode->i_sb;
+	struct ext4_inode_info *ei = EXT4_I(inode);
+	int err;
+	handle_t *handle;
+	kprojid_t kprojid;
+	struct ext4_iloc iloc;
+	struct ext4_inode *raw_inode;
+
+	struct dquot *transfer_to[EXT4_MAXQUOTAS] = { };
+
+	/* Make sure caller can change project. */
+	if (!capable(CAP_SYS_ADMIN))
+		return -EACCES;
+
+	if (projid != EXT4_DEF_PROJID
+	    && !EXT4_HAS_RO_COMPAT_FEATURE(sb,
+			EXT4_FEATURE_RO_COMPAT_PROJECT))
+		return -EOPNOTSUPP;
+
+	if (!EXT4_HAS_RO_COMPAT_FEATURE(sb,
+			EXT4_FEATURE_RO_COMPAT_PROJECT)) {
+		BUG_ON(__kprojid_val(EXT4_I(inode)->i_projid)
+		       != EXT4_DEF_PROJID);
+		if (projid != EXT4_DEF_PROJID)
+			return -EOPNOTSUPP;
+		else
+			return 0;
+	}
+
+	kprojid = make_kprojid(&init_user_ns, (projid_t)projid);
+
+	if (projid_eq(kprojid, EXT4_I(inode)->i_projid))
+		return 0;
+
+	err = mnt_want_write_file(filp);
+	if (err)
 		return err;
+
+	err = -EPERM;
+	mutex_lock(&inode->i_mutex);
+	/* Is it quota file? Do not allow user to mess with it */
+	if (IS_NOQUOTA(inode))
+		goto project_out;
+
+	dquot_initialize(inode);
+
+	handle = ext4_journal_start(inode, EXT4_HT_QUOTA,
+		EXT4_QUOTA_INIT_BLOCKS(sb) +
+		EXT4_QUOTA_DEL_BLOCKS(sb) + 3);
+	if (IS_ERR(handle)) {
+		err = PTR_ERR(handle);
+		goto project_out;
+	}
+
+	err = ext4_reserve_inode_write(handle, inode, &iloc);
+	if (err)
+		goto project_stop;
+
+	raw_inode = ext4_raw_inode(&iloc);
+	if ((EXT4_INODE_SIZE(sb) <=
+	     EXT4_GOOD_OLD_INODE_SIZE) ||
+	    (!EXT4_FITS_IN_INODE(raw_inode, ei, i_projid))) {
+	    	err = -EFBIG;
+	    	goto project_stop;
 	}
+
+	transfer_to[PRJQUOTA] = dqget(sb, make_kqid_projid(kprojid));
+	if (!transfer_to[PRJQUOTA])
+		goto project_set;
+
+	err = __dquot_transfer(inode, transfer_to);
+	dqput(transfer_to[PRJQUOTA]);
+	if (err)
+		goto project_stop;
+
+project_set:
+	EXT4_I(inode)->i_projid = kprojid;
+	inode->i_ctime = ext4_current_time(inode);
+	err = ext4_mark_iloc_dirty(handle, inode, &iloc);
+project_stop:
+	ext4_journal_stop(handle);
+project_out:
+	mutex_unlock(&inode->i_mutex);
+	mnt_drop_write_file(filp);
+	return err;
+}
+
+long ext4_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
+{
+	struct inode *inode = file_inode(filp);
+	struct super_block *sb = inode->i_sb;
+	struct ext4_inode_info *ei = EXT4_I(inode);
+	unsigned int flags;
+
+	ext4_debug("cmd = %u, arg = %lu\n", cmd, arg);
+
+	switch (cmd) {
+	case EXT4_IOC_GETFLAGS:
+		ext4_get_inode_flags(ei);
+		flags = ei->i_flags & EXT4_FL_USER_VISIBLE;
+		return put_user(flags, (int __user *) arg);
+	case EXT4_IOC_SETFLAGS:
+		if (get_user(flags, (int __user *) arg))
+			return -EFAULT;
+		return ext4_ioctl_setflags(filp, flags);
 	case EXT4_IOC_GETVERSION:
 	case EXT4_IOC_GETVERSION_OLD:
 		return put_user(inode->i_generation, (int __user *) arg);

@@ -617,7 +713,45 @@ resizefs_out:
 	}
 	case EXT4_IOC_PRECACHE_EXTENTS:
 		return ext4_ext_precache(inode);
+	case EXT4_IOC_FSGETXATTR:
+	{
+		struct fsxattr fa;
+
+		memset(&fa, 0, sizeof(struct fsxattr));
+
+		ext4_get_inode_flags(ei);
+		fa.fsx_xflags = ext4_iflags_to_xflags(ei->i_flags & EXT4_FL_USER_VISIBLE);
+
+		if (EXT4_HAS_RO_COMPAT_FEATURE(inode->i_sb,
+				EXT4_FEATURE_RO_COMPAT_PROJECT)) {
+			fa.fsx_projid = (__u32)from_kprojid(&init_user_ns,
+				EXT4_I(inode)->i_projid);
+		}
+
+		if (copy_to_user((struct fsxattr __user *)arg,
+				 &fa, sizeof(fa)))
+			return -EFAULT;
+		return 0;
+	}
+	case EXT4_IOC_FSSETXATTR:
+	{
+		struct fsxattr fa;
+		int err;
+
+		if (copy_from_user(&fa, (struct fsxattr __user *)arg,
+				   sizeof(fa)))
+			return -EFAULT;
 
+		err = ext4_ioctl_setflags(filp, ext4_xflags_to_iflags(fa.fsx_xflags));
+		if (err)
+			return err;
+
+		err = ext4_ioctl_setproject(filp, fa.fsx_projid);
+		if (err)
+			return err;
+
+		return 0;
+	}
 	default:
 		return -ENOTTY;
 	}

diff --git a/fs/xfs/xfs_fs.h b/fs/xfs/xfs_fs.h
index 18dc721..64c7ae6 100644
--- a/fs/xfs/xfs_fs.h
+++ b/fs/xfs/xfs_fs.h

@@ -36,38 +36,25 @@ struct dioattr {
 #endif
 
 /*
- * Structure for XFS_IOC_FSGETXATTR[A] and XFS_IOC_FSSETXATTR.
- */
-#ifndef HAVE_FSXATTR
-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) */
-	unsigned char	fsx_pad[12];
-};
-#endif
-
-/*
  * Flags for the bs_xflags/fsx_xflags field
  * There should be a one-to-one correspondence between these flags and the
  * XFS_DIFLAG_s.
  */
-#define XFS_XFLAG_REALTIME	0x00000001	/* data in realtime volume */
-#define XFS_XFLAG_PREALLOC	0x00000002	/* preallocated file extents */
-#define XFS_XFLAG_IMMUTABLE	0x00000008	/* file cannot be modified */
-#define XFS_XFLAG_APPEND	0x00000010	/* all writes append */
-#define XFS_XFLAG_SYNC		0x00000020	/* all writes synchronous */
-#define XFS_XFLAG_NOATIME	0x00000040	/* do not update access time */
-#define XFS_XFLAG_NODUMP	0x00000080	/* do not include in backups */
-#define XFS_XFLAG_RTINHERIT	0x00000100	/* create with rt bit set */
-#define XFS_XFLAG_PROJINHERIT	0x00000200	/* create with parents projid */
-#define XFS_XFLAG_NOSYMLINKS	0x00000400	/* disallow symlink creation */
-#define XFS_XFLAG_EXTSIZE	0x00000800	/* extent size allocator hint */
-#define XFS_XFLAG_EXTSZINHERIT	0x00001000	/* inherit inode extent size */
-#define XFS_XFLAG_NODEFRAG	0x00002000  	/* do not defragment */
-#define XFS_XFLAG_FILESTREAM	0x00004000	/* use filestream allocator */
-#define XFS_XFLAG_HASATTR	0x80000000	/* no DIFLAG for this	*/
+#define XFS_XFLAG_REALTIME	FS_XFLAG_REALTIME	/* data in realtime volume */
+#define XFS_XFLAG_PREALLOC	FS_XFLAG_PREALLOC	/* preallocated file extents */
+#define XFS_XFLAG_IMMUTABLE	FS_XFLAG_IMMUTABLE	/* file cannot be modified */
+#define XFS_XFLAG_APPEND	FS_XFLAG_APPEND		/* all writes append */
+#define XFS_XFLAG_SYNC		FS_XFLAG_SYNC		/* all writes synchronous */
+#define XFS_XFLAG_NOATIME	FS_XFLAG_NOATIME	/* do not update access time */
+#define XFS_XFLAG_NODUMP	FS_XFLAG_NODUMP		/* do not include in backups */
+#define XFS_XFLAG_RTINHERIT	FS_XFLAG_RTINHERIT	/* create with rt bit set */
+#define XFS_XFLAG_PROJINHERIT	FS_XFLAG_PROJINHERIT	/* create with parents projid */
+#define XFS_XFLAG_NOSYMLINKS	FS_XFLAG_NOSYMLINKS	/* disallow symlink creation */
+#define XFS_XFLAG_EXTSIZE	FS_XFLAG_EXTSIZE	/* extent size allocator hint */
+#define XFS_XFLAG_EXTSZINHERIT	FS_XFLAG_EXTSZINHERIT	/* inherit inode extent size */
+#define XFS_XFLAG_NODEFRAG	FS_XFLAG_NODEFRAG  	/* do not defragment */
+#define XFS_XFLAG_FILESTREAM	FS_XFLAG_FILESTREAM	/* use filestream allocator */
+#define XFS_XFLAG_HASATTR	FS_XFLAG_HASATTR	/* no DIFLAG for this	*/
 
 /*
  * Structure for XFS_IOC_GETBMAP.

@@ -503,8 +490,8 @@ typedef struct xfs_swapext
 #define XFS_IOC_ALLOCSP		_IOW ('X', 10, struct xfs_flock64)
 #define XFS_IOC_FREESP		_IOW ('X', 11, struct xfs_flock64)
 #define XFS_IOC_DIOINFO		_IOR ('X', 30, struct dioattr)
-#define XFS_IOC_FSGETXATTR	_IOR ('X', 31, struct fsxattr)
-#define XFS_IOC_FSSETXATTR	_IOW ('X', 32, struct fsxattr)
+#define XFS_IOC_FSGETXATTR	FS_IOC_FSGETXATTR
+#define XFS_IOC_FSSETXATTR	FS_IOC_FSSETXATTR
 #define XFS_IOC_ALLOCSP64	_IOW ('X', 36, struct xfs_flock64)
 #define XFS_IOC_FREESP64	_IOW ('X', 37, struct xfs_flock64)
 #define XFS_IOC_GETBMAP		_IOWR('X', 38, struct getbmap)

diff --git a/include/uapi/linux/fs.h b/include/uapi/linux/fs.h
index fcbf647..872fed5 100644
--- a/include/uapi/linux/fs.h
+++ b/include/uapi/linux/fs.h

@@ -58,6 +58,62 @@ struct inodes_stat_t {
 	long dummy[5];		/* padding for sysctl ABI compatibility */
 };
 
+/*
+ * Extend attribute flags. These should be or-ed together to figure out what
+ * is valid.
+ */
+#define FSX_XFLAGS	(1 << 0)
+#define FSX_EXTSIZE	(1 << 1)
+#define FSX_NEXTENTS	(1 << 2)
+#define FSX_PROJID	(1 << 3)
+
+/*
+ * Structure for FS_IOC_FSGETXATTR 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) */
+	unsigned char	fsx_pad[12];
+};
+
+/*
+ * 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_SECRM		0x00000004	/* secure deletion */
+#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_UNRM		0x00008000	/* undelete */
+#define FS_XFLAG_COMPR		0x00010000	/* compress file */
+#define FS_XFLAG_COMPRBLK	0x00020000	/* one or more compressed clusters */
+#define FS_XFLAG_NOCOMPR	0x00040000	/* don't compress */
+#define FS_XFLAG_ECOMPR		0x00080000	/* compression error */
+#define FS_XFLAG_INDEX		0x00100000	/* hash-indexed directory */
+#define FS_XFLAG_IMAGIC		0x00200000	/* AFS directory */
+#define FS_XFLAG_JOURNAL_DATA	0x00400000	/* file data should be journaled */
+#define FS_XFLAG_NOTAIL		0x00800000	/* file tail should not be merged */
+#define FS_XFLAG_DIRSYNC	0x01000000	/* dirsync behaviour (directories only) */
+#define FS_XFLAG_TOPDIR		0x02000000	/* top of directory hierarchies*/
+#define FS_XFLAG_HUGE_FILE	0x04000000	/* set to each huge file */
+#define FS_XFLAG_EXTENTS	0x08000000	/* inode uses extents */
+#define FS_XFLAG_EA_INODE	0x10000000	/* inode used for large EA */
+#define FS_XFLAG_EOFBLOCKS	0x20000000	/* blocks allocated beyond EOF */
+#define FS_XFLAG_INLINE_DATA	0x40000000	/* inode has inline data. */
+#define FS_XFLAG_HASATTR	0x80000000	/* no DIFLAG for this */
+
 
 #define NR_FILE  8192	/* this can well be larger on a larger system */

@@ -163,6 +219,8 @@ struct inodes_stat_t {
 #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_IOC_FSGETXATTR		_IOR('f', 31, struct fsxattr)
+#define FS_IOC_FSSETXATTR		_IOW('f', 32, struct fsxattr)
 #define FS_IOC32_GETFLAGS		_IOR('f', 1, int)
 #define FS_IOC32_SETFLAGS		_IOW('f', 2, int)
 #define FS_IOC32_GETVERSION		_IOR('v', 1, int)

-- 
1.7.1

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