* [v7 3/5] ext4: adds project quota support
2014-11-22 5:24 [v7 0/5] ext4: add project quota support Li Xi
[not found] ` <1416633895-4004-1-git-send-email-lixi-LfVdkaOWEx8@public.gmane.org>
@ 2014-11-22 5:24 ` Li Xi
2014-11-22 5:24 ` [v7 4/5] ext4: adds FS_IOC_FSSETXATTR/FS_IOC_FSGETXATTR interface support Li Xi
2 siblings, 0 replies; 6+ messages in thread
From: Li Xi @ 2014-11-22 5:24 UTC (permalink / raw)
To: linux-fsdevel, linux-ext4, linux-api, tytso, adilger, jack, viro,
hch, dmonakhov
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 <lixi@ddn.com>
Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org>
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
^ permalink raw reply related [flat|nested] 6+ messages in thread* [v7 4/5] ext4: adds FS_IOC_FSSETXATTR/FS_IOC_FSGETXATTR interface support
2014-11-22 5:24 [v7 0/5] ext4: add project quota support Li Xi
[not found] ` <1416633895-4004-1-git-send-email-lixi-LfVdkaOWEx8@public.gmane.org>
2014-11-22 5:24 ` [v7 3/5] ext4: adds project quota support Li Xi
@ 2014-11-22 5:24 ` Li Xi
2 siblings, 0 replies; 6+ messages in thread
From: Li Xi @ 2014-11-22 5:24 UTC (permalink / raw)
To: linux-fsdevel, linux-ext4, linux-api, tytso, adilger, jack, viro,
hch, dmonakhov
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 <lixi@ddn.com>
---
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
^ permalink raw reply related [flat|nested] 6+ messages in thread