From: Aditya Kali <adityakali@google.com>
Subject: Re: [PATCH 7/9] debugfs: add commands to query the quota information
Date: Tue, 13 May 2014 00:28:32 -0700
Message-ID: <CAGr1F2HXbjLZnpv3J2BvZgi4fqDufTRKNKDJt5kKRznWJPA+uw@mail.gmail.com>
References: <1399782773-20029-1-git-send-email-tytso@mit.edu> <1399782773-20029-8-git-send-email-tytso@mit.edu>
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Cc: Ext4 Developers List <linux-ext4@vger.kernel.org>
To: "Theodore Ts'o" <tytso@mit.edu>
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On Sat, May 10, 2014 at 9:32 PM, Theodore Ts'o <tytso@mit.edu> wrote:
> This allows us to verify quota information in an ext4 file systems
> with the quota feature.
>
> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
> Cc: adityakali@google.com

Reviewed-by: Aditya Kali <adityakali@google.com>

Thanks!

> ---
>  debugfs/Makefile.in      | 177 ++++++++++++++++++++++++++++++++++-------------
>  debugfs/debug_cmds.ct    |   6 ++
>  debugfs/debugfs.c        |   3 +
>  debugfs/debugfs.h        |   6 ++
>  debugfs/quota.c          | 170 +++++++++++++++++++++++++++++++++++++++++++++
>  debugfs/ro_debug_cmds.ct |   7 +-
>  6 files changed, 319 insertions(+), 50 deletions(-)
>  create mode 100644 debugfs/quota.c
>
> diff --git a/debugfs/Makefile.in b/debugfs/Makefile.in
> index 5ddeab7..3dd06f0 100644
> --- a/debugfs/Makefile.in
> +++ b/debugfs/Makefile.in
> @@ -18,25 +18,27 @@ MK_CMDS=    _SS_DIR_OVERRIDE=../lib/ss ../lib/ss/mk_cmds
>
>  DEBUG_OBJS= debug_cmds.o debugfs.o util.o ncheck.o icheck.o ls.o \
>         lsdel.o dump.o set_fields.o logdump.o htree.o unused.o e2freefrag.o \
> -       filefrag.o extent_cmds.o extent_inode.o zap.o
> +       filefrag.o extent_cmds.o extent_inode.o zap.o quota.o
>
>  RO_DEBUG_OBJS= ro_debug_cmds.o ro_debugfs.o util.o ncheck.o icheck.o ls.o \
>         lsdel.o logdump.o htree.o e2freefrag.o filefrag.o extent_cmds.o \
> -       extent_inode.o
> +       extent_inode.o quota.o
>
>  SRCS= debug_cmds.c $(srcdir)/debugfs.c $(srcdir)/util.c $(srcdir)/ls.c \
>         $(srcdir)/ncheck.c $(srcdir)/icheck.c $(srcdir)/lsdel.c \
>         $(srcdir)/dump.c $(srcdir)/set_fields.c ${srcdir}/logdump.c \
>         $(srcdir)/htree.c $(srcdir)/unused.c ${srcdir}/../misc/e2freefrag.c \
> -       $(srcdir)/filefrag.c $(srcdir)/extent_inode.c $(srcdir)/zap.c
> +       $(srcdir)/filefrag.c $(srcdir)/extent_inode.c $(srcdir)/zap.c \
> +       $(srcdir)/quota.c
>
> -LIBS= $(LIBEXT2FS) $(LIBE2P) $(LIBSS) $(LIBCOM_ERR) $(LIBBLKID) \
> +LIBS= $(LIBQUOTA) $(LIBEXT2FS) $(LIBE2P) $(LIBSS) $(LIBCOM_ERR) $(LIBBLKID) \
>         $(LIBUUID) $(SYSLIBS)
> -DEPLIBS= $(LIBEXT2FS) $(LIBE2P) $(DEPLIBSS) $(DEPLIBCOM_ERR) \
> +DEPLIBS= $(DEPLIBQUOTA) $(LIBEXT2FS) $(LIBE2P) $(DEPLIBSS) $(DEPLIBCOM_ERR) \
>         $(DEPLIBBLKID) $(DEPLIBUUID)
>
> -STATIC_LIBS= $(STATIC_LIBEXT2FS) $(STATIC_LIBSS) $(STATIC_LIBCOM_ERR) \
> -       $(STATIC_LIBBLKID) $(STATIC_LIBUUID) $(STATIC_LIBE2P) $(SYSLIBS)
> +STATIC_LIBS= $(STATIC_LIBQUOTA) $(STATIC_LIBEXT2FS) $(STATIC_LIBSS) \
> +       $(STATIC_LIBCOM_ERR) $(STATIC_LIBBLKID) $(STATIC_LIBUUID) \
> +       $(STATIC_LIBE2P) $(SYSLIBS)
>  STATIC_DEPLIBS= $(STATIC_LIBEXT2FS) $(DEPSTATIC_LIBSS) \
>                 $(DEPSTATIC_LIBCOM_ERR) $(DEPSTATIC_LIBUUID) \
>                 $(DEPSTATIC_LIBE2P)
> @@ -133,76 +135,153 @@ distclean: clean
>  #
>  debug_cmds.o: debug_cmds.c $(top_srcdir)/lib/ss/ss.h \
>   $(top_builddir)/lib/ss/ss_err.h $(top_srcdir)/lib/et/com_err.h
> -debugfs.o: $(srcdir)/debugfs.c $(top_srcdir)/lib/et/com_err.h \
> - $(top_srcdir)/lib/ss/ss.h $(top_builddir)/lib/ss/ss_err.h \
> +debugfs.o: $(srcdir)/debugfs.c $(top_builddir)/lib/config.h \
> + $(top_builddir)/lib/dirpaths.h $(srcdir)/debugfs.h $(top_srcdir)/lib/ss/ss.h \
> + $(top_builddir)/lib/ss/ss_err.h $(top_srcdir)/lib/et/com_err.h \
> + $(top_srcdir)/lib/ext2fs/ext2_fs.h $(top_builddir)/lib/ext2fs/ext2_types.h \
> + $(top_srcdir)/lib/ext2fs/ext2fs.h $(top_srcdir)/lib/ext2fs/ext3_extents.h \
> + $(top_srcdir)/lib/ext2fs/ext2_io.h $(top_builddir)/lib/ext2fs/ext2_err.h \
> + $(top_srcdir)/lib/ext2fs/ext2_ext_attr.h $(top_srcdir)/lib/ext2fs/bitops.h \
> + $(top_srcdir)/lib/quota/quotaio.h $(top_srcdir)/lib/quota/dqblk_v2.h \
> + $(top_srcdir)/lib/quota/quotaio_tree.h $(top_srcdir)/lib/../e2fsck/dict.h \
> + $(top_srcdir)/lib/e2p/e2p.h $(top_srcdir)/version.h $(srcdir)/jfs_user.h \
> + $(top_srcdir)/lib/ext2fs/kernel-jbd.h $(top_srcdir)/lib/ext2fs/jfs_compat.h \
> + $(top_srcdir)/lib/ext2fs/kernel-list.h
> +util.o: $(srcdir)/util.c $(top_builddir)/lib/config.h \
> + $(top_builddir)/lib/dirpaths.h $(top_srcdir)/lib/ss/ss.h \
> + $(top_builddir)/lib/ss/ss_err.h $(top_srcdir)/lib/et/com_err.h \
>   $(srcdir)/debugfs.h $(top_srcdir)/lib/ext2fs/ext2_fs.h \
>   $(top_builddir)/lib/ext2fs/ext2_types.h $(top_srcdir)/lib/ext2fs/ext2fs.h \
>   $(top_srcdir)/lib/ext2fs/ext3_extents.h $(top_srcdir)/lib/ext2fs/ext2_io.h \
>   $(top_builddir)/lib/ext2fs/ext2_err.h \
>   $(top_srcdir)/lib/ext2fs/ext2_ext_attr.h $(top_srcdir)/lib/ext2fs/bitops.h \
> - $(top_srcdir)/lib/e2p/e2p.h $(top_srcdir)/version.h $(srcdir)/jfs_user.h \
> - $(top_srcdir)/lib/ext2fs/kernel-jbd.h $(top_srcdir)/lib/ext2fs/jfs_compat.h \
> - $(top_srcdir)/lib/ext2fs/kernel-list.h
> -util.o: $(srcdir)/util.c $(srcdir)/debugfs.h \
> + $(top_srcdir)/lib/quota/quotaio.h $(top_srcdir)/lib/quota/dqblk_v2.h \
> + $(top_srcdir)/lib/quota/quotaio_tree.h $(top_srcdir)/lib/../e2fsck/dict.h
> +ls.o: $(srcdir)/ls.c $(top_builddir)/lib/config.h \
> + $(top_builddir)/lib/dirpaths.h $(srcdir)/debugfs.h $(top_srcdir)/lib/ss/ss.h \
> + $(top_builddir)/lib/ss/ss_err.h $(top_srcdir)/lib/et/com_err.h \
>   $(top_srcdir)/lib/ext2fs/ext2_fs.h $(top_builddir)/lib/ext2fs/ext2_types.h \
>   $(top_srcdir)/lib/ext2fs/ext2fs.h $(top_srcdir)/lib/ext2fs/ext3_extents.h \
> - $(top_srcdir)/lib/et/com_err.h $(top_srcdir)/lib/ext2fs/ext2_io.h \
> - $(top_builddir)/lib/ext2fs/ext2_err.h \
> - $(top_srcdir)/lib/ext2fs/ext2_ext_attr.h $(top_srcdir)/lib/ext2fs/bitops.h
> -ls.o: $(srcdir)/ls.c $(srcdir)/debugfs.h $(top_srcdir)/lib/ext2fs/ext2_fs.h \
> - $(top_builddir)/lib/ext2fs/ext2_types.h $(top_srcdir)/lib/ext2fs/ext2fs.h \
> - $(top_srcdir)/lib/ext2fs/ext3_extents.h $(top_srcdir)/lib/et/com_err.h \
>   $(top_srcdir)/lib/ext2fs/ext2_io.h $(top_builddir)/lib/ext2fs/ext2_err.h \
> - $(top_srcdir)/lib/ext2fs/ext2_ext_attr.h $(top_srcdir)/lib/ext2fs/bitops.h
> -ncheck.o: $(srcdir)/ncheck.c $(srcdir)/debugfs.h \
> + $(top_srcdir)/lib/ext2fs/ext2_ext_attr.h $(top_srcdir)/lib/ext2fs/bitops.h \
> + $(top_srcdir)/lib/quota/quotaio.h $(top_srcdir)/lib/quota/dqblk_v2.h \
> + $(top_srcdir)/lib/quota/quotaio_tree.h $(top_srcdir)/lib/../e2fsck/dict.h
> +ncheck.o: $(srcdir)/ncheck.c $(top_builddir)/lib/config.h \
> + $(top_builddir)/lib/dirpaths.h $(srcdir)/debugfs.h $(top_srcdir)/lib/ss/ss.h \
> + $(top_builddir)/lib/ss/ss_err.h $(top_srcdir)/lib/et/com_err.h \
>   $(top_srcdir)/lib/ext2fs/ext2_fs.h $(top_builddir)/lib/ext2fs/ext2_types.h \
>   $(top_srcdir)/lib/ext2fs/ext2fs.h $(top_srcdir)/lib/ext2fs/ext3_extents.h \
> - $(top_srcdir)/lib/et/com_err.h $(top_srcdir)/lib/ext2fs/ext2_io.h \
> - $(top_builddir)/lib/ext2fs/ext2_err.h \
> - $(top_srcdir)/lib/ext2fs/ext2_ext_attr.h $(top_srcdir)/lib/ext2fs/bitops.h
> -icheck.o: $(srcdir)/icheck.c $(srcdir)/debugfs.h \
> + $(top_srcdir)/lib/ext2fs/ext2_io.h $(top_builddir)/lib/ext2fs/ext2_err.h \
> + $(top_srcdir)/lib/ext2fs/ext2_ext_attr.h $(top_srcdir)/lib/ext2fs/bitops.h \
> + $(top_srcdir)/lib/quota/quotaio.h $(top_srcdir)/lib/quota/dqblk_v2.h \
> + $(top_srcdir)/lib/quota/quotaio_tree.h $(top_srcdir)/lib/../e2fsck/dict.h
> +icheck.o: $(srcdir)/icheck.c $(top_builddir)/lib/config.h \
> + $(top_builddir)/lib/dirpaths.h $(srcdir)/debugfs.h $(top_srcdir)/lib/ss/ss.h \
> + $(top_builddir)/lib/ss/ss_err.h $(top_srcdir)/lib/et/com_err.h \
>   $(top_srcdir)/lib/ext2fs/ext2_fs.h $(top_builddir)/lib/ext2fs/ext2_types.h \
>   $(top_srcdir)/lib/ext2fs/ext2fs.h $(top_srcdir)/lib/ext2fs/ext3_extents.h \
> - $(top_srcdir)/lib/et/com_err.h $(top_srcdir)/lib/ext2fs/ext2_io.h \
> - $(top_builddir)/lib/ext2fs/ext2_err.h \
> - $(top_srcdir)/lib/ext2fs/ext2_ext_attr.h $(top_srcdir)/lib/ext2fs/bitops.h
> -lsdel.o: $(srcdir)/lsdel.c $(srcdir)/debugfs.h \
> + $(top_srcdir)/lib/ext2fs/ext2_io.h $(top_builddir)/lib/ext2fs/ext2_err.h \
> + $(top_srcdir)/lib/ext2fs/ext2_ext_attr.h $(top_srcdir)/lib/ext2fs/bitops.h \
> + $(top_srcdir)/lib/quota/quotaio.h $(top_srcdir)/lib/quota/dqblk_v2.h \
> + $(top_srcdir)/lib/quota/quotaio_tree.h $(top_srcdir)/lib/../e2fsck/dict.h
> +lsdel.o: $(srcdir)/lsdel.c $(top_builddir)/lib/config.h \
> + $(top_builddir)/lib/dirpaths.h $(srcdir)/debugfs.h $(top_srcdir)/lib/ss/ss.h \
> + $(top_builddir)/lib/ss/ss_err.h $(top_srcdir)/lib/et/com_err.h \
>   $(top_srcdir)/lib/ext2fs/ext2_fs.h $(top_builddir)/lib/ext2fs/ext2_types.h \
>   $(top_srcdir)/lib/ext2fs/ext2fs.h $(top_srcdir)/lib/ext2fs/ext3_extents.h \
> - $(top_srcdir)/lib/et/com_err.h $(top_srcdir)/lib/ext2fs/ext2_io.h \
> - $(top_builddir)/lib/ext2fs/ext2_err.h \
> - $(top_srcdir)/lib/ext2fs/ext2_ext_attr.h $(top_srcdir)/lib/ext2fs/bitops.h
> -dump.o: $(srcdir)/dump.c $(srcdir)/debugfs.h \
> + $(top_srcdir)/lib/ext2fs/ext2_io.h $(top_builddir)/lib/ext2fs/ext2_err.h \
> + $(top_srcdir)/lib/ext2fs/ext2_ext_attr.h $(top_srcdir)/lib/ext2fs/bitops.h \
> + $(top_srcdir)/lib/quota/quotaio.h $(top_srcdir)/lib/quota/dqblk_v2.h \
> + $(top_srcdir)/lib/quota/quotaio_tree.h $(top_srcdir)/lib/../e2fsck/dict.h
> +dump.o: $(srcdir)/dump.c $(top_builddir)/lib/config.h \
> + $(top_builddir)/lib/dirpaths.h $(srcdir)/debugfs.h $(top_srcdir)/lib/ss/ss.h \
> + $(top_builddir)/lib/ss/ss_err.h $(top_srcdir)/lib/et/com_err.h \
>   $(top_srcdir)/lib/ext2fs/ext2_fs.h $(top_builddir)/lib/ext2fs/ext2_types.h \
>   $(top_srcdir)/lib/ext2fs/ext2fs.h $(top_srcdir)/lib/ext2fs/ext3_extents.h \
> - $(top_srcdir)/lib/et/com_err.h $(top_srcdir)/lib/ext2fs/ext2_io.h \
> - $(top_builddir)/lib/ext2fs/ext2_err.h \
> - $(top_srcdir)/lib/ext2fs/ext2_ext_attr.h $(top_srcdir)/lib/ext2fs/bitops.h
> -set_fields.o: $(srcdir)/set_fields.c $(srcdir)/debugfs.h \
> + $(top_srcdir)/lib/ext2fs/ext2_io.h $(top_builddir)/lib/ext2fs/ext2_err.h \
> + $(top_srcdir)/lib/ext2fs/ext2_ext_attr.h $(top_srcdir)/lib/ext2fs/bitops.h \
> + $(top_srcdir)/lib/quota/quotaio.h $(top_srcdir)/lib/quota/dqblk_v2.h \
> + $(top_srcdir)/lib/quota/quotaio_tree.h $(top_srcdir)/lib/../e2fsck/dict.h
> +set_fields.o: $(srcdir)/set_fields.c $(top_builddir)/lib/config.h \
> + $(top_builddir)/lib/dirpaths.h $(srcdir)/debugfs.h $(top_srcdir)/lib/ss/ss.h \
> + $(top_builddir)/lib/ss/ss_err.h $(top_srcdir)/lib/et/com_err.h \
>   $(top_srcdir)/lib/ext2fs/ext2_fs.h $(top_builddir)/lib/ext2fs/ext2_types.h \
>   $(top_srcdir)/lib/ext2fs/ext2fs.h $(top_srcdir)/lib/ext2fs/ext3_extents.h \
> - $(top_srcdir)/lib/et/com_err.h $(top_srcdir)/lib/ext2fs/ext2_io.h \
> - $(top_builddir)/lib/ext2fs/ext2_err.h \
> + $(top_srcdir)/lib/ext2fs/ext2_io.h $(top_builddir)/lib/ext2fs/ext2_err.h \
>   $(top_srcdir)/lib/ext2fs/ext2_ext_attr.h $(top_srcdir)/lib/ext2fs/bitops.h \
> + $(top_srcdir)/lib/quota/quotaio.h $(top_srcdir)/lib/quota/dqblk_v2.h \
> + $(top_srcdir)/lib/quota/quotaio_tree.h $(top_srcdir)/lib/../e2fsck/dict.h \
>   $(top_srcdir)/lib/e2p/e2p.h
> -logdump.o: $(srcdir)/logdump.c $(srcdir)/debugfs.h \
> +logdump.o: $(srcdir)/logdump.c $(top_builddir)/lib/config.h \
> + $(top_builddir)/lib/dirpaths.h $(srcdir)/debugfs.h $(top_srcdir)/lib/ss/ss.h \
> + $(top_builddir)/lib/ss/ss_err.h $(top_srcdir)/lib/et/com_err.h \
>   $(top_srcdir)/lib/ext2fs/ext2_fs.h $(top_builddir)/lib/ext2fs/ext2_types.h \
>   $(top_srcdir)/lib/ext2fs/ext2fs.h $(top_srcdir)/lib/ext2fs/ext3_extents.h \
> - $(top_srcdir)/lib/et/com_err.h $(top_srcdir)/lib/ext2fs/ext2_io.h \
> - $(top_builddir)/lib/ext2fs/ext2_err.h \
> + $(top_srcdir)/lib/ext2fs/ext2_io.h $(top_builddir)/lib/ext2fs/ext2_err.h \
>   $(top_srcdir)/lib/ext2fs/ext2_ext_attr.h $(top_srcdir)/lib/ext2fs/bitops.h \
> + $(top_srcdir)/lib/quota/quotaio.h $(top_srcdir)/lib/quota/dqblk_v2.h \
> + $(top_srcdir)/lib/quota/quotaio_tree.h $(top_srcdir)/lib/../e2fsck/dict.h \
>   $(srcdir)/jfs_user.h $(top_srcdir)/lib/ext2fs/kernel-jbd.h \
>   $(top_srcdir)/lib/ext2fs/jfs_compat.h $(top_srcdir)/lib/ext2fs/kernel-list.h
> -htree.o: $(srcdir)/htree.c $(srcdir)/debugfs.h \
> +htree.o: $(srcdir)/htree.c $(top_builddir)/lib/config.h \
> + $(top_builddir)/lib/dirpaths.h $(srcdir)/debugfs.h $(top_srcdir)/lib/ss/ss.h \
> + $(top_builddir)/lib/ss/ss_err.h $(top_srcdir)/lib/et/com_err.h \
>   $(top_srcdir)/lib/ext2fs/ext2_fs.h $(top_builddir)/lib/ext2fs/ext2_types.h \
>   $(top_srcdir)/lib/ext2fs/ext2fs.h $(top_srcdir)/lib/ext2fs/ext3_extents.h \
> - $(top_srcdir)/lib/et/com_err.h $(top_srcdir)/lib/ext2fs/ext2_io.h \
> - $(top_builddir)/lib/ext2fs/ext2_err.h \
> + $(top_srcdir)/lib/ext2fs/ext2_io.h $(top_builddir)/lib/ext2fs/ext2_err.h \
>   $(top_srcdir)/lib/ext2fs/ext2_ext_attr.h $(top_srcdir)/lib/ext2fs/bitops.h \
> + $(top_srcdir)/lib/quota/quotaio.h $(top_srcdir)/lib/quota/dqblk_v2.h \
> + $(top_srcdir)/lib/quota/quotaio_tree.h $(top_srcdir)/lib/../e2fsck/dict.h \
>   $(top_srcdir)/lib/e2p/e2p.h
> -unused.o: $(srcdir)/unused.c $(srcdir)/debugfs.h \
> +unused.o: $(srcdir)/unused.c $(top_builddir)/lib/config.h \
> + $(top_builddir)/lib/dirpaths.h $(srcdir)/debugfs.h $(top_srcdir)/lib/ss/ss.h \
> + $(top_builddir)/lib/ss/ss_err.h $(top_srcdir)/lib/et/com_err.h \
>   $(top_srcdir)/lib/ext2fs/ext2_fs.h $(top_builddir)/lib/ext2fs/ext2_types.h \
>   $(top_srcdir)/lib/ext2fs/ext2fs.h $(top_srcdir)/lib/ext2fs/ext3_extents.h \
> - $(top_srcdir)/lib/et/com_err.h $(top_srcdir)/lib/ext2fs/ext2_io.h \
> - $(top_builddir)/lib/ext2fs/ext2_err.h \
> - $(top_srcdir)/lib/ext2fs/ext2_ext_attr.h $(top_srcdir)/lib/ext2fs/bitops.h
> + $(top_srcdir)/lib/ext2fs/ext2_io.h $(top_builddir)/lib/ext2fs/ext2_err.h \
> + $(top_srcdir)/lib/ext2fs/ext2_ext_attr.h $(top_srcdir)/lib/ext2fs/bitops.h \
> + $(top_srcdir)/lib/quota/quotaio.h $(top_srcdir)/lib/quota/dqblk_v2.h \
> + $(top_srcdir)/lib/quota/quotaio_tree.h $(top_srcdir)/lib/../e2fsck/dict.h
> +e2freefrag.o: $(srcdir)/../misc/e2freefrag.c $(top_builddir)/lib/config.h \
> + $(top_builddir)/lib/dirpaths.h $(top_srcdir)/lib/ext2fs/ext2_fs.h \
> + $(top_builddir)/lib/ext2fs/ext2_types.h $(top_srcdir)/lib/ext2fs/ext2fs.h \
> + $(top_srcdir)/lib/ext2fs/ext3_extents.h $(top_srcdir)/lib/et/com_err.h \
> + $(top_srcdir)/lib/ext2fs/ext2_io.h $(top_builddir)/lib/ext2fs/ext2_err.h \
> + $(top_srcdir)/lib/ext2fs/ext2_ext_attr.h $(top_srcdir)/lib/ext2fs/bitops.h \
> + $(srcdir)/../misc/e2freefrag.h
> +filefrag.o: $(srcdir)/filefrag.c $(top_builddir)/lib/config.h \
> + $(top_builddir)/lib/dirpaths.h $(srcdir)/debugfs.h $(top_srcdir)/lib/ss/ss.h \
> + $(top_builddir)/lib/ss/ss_err.h $(top_srcdir)/lib/et/com_err.h \
> + $(top_srcdir)/lib/ext2fs/ext2_fs.h $(top_builddir)/lib/ext2fs/ext2_types.h \
> + $(top_srcdir)/lib/ext2fs/ext2fs.h $(top_srcdir)/lib/ext2fs/ext3_extents.h \
> + $(top_srcdir)/lib/ext2fs/ext2_io.h $(top_builddir)/lib/ext2fs/ext2_err.h \
> + $(top_srcdir)/lib/ext2fs/ext2_ext_attr.h $(top_srcdir)/lib/ext2fs/bitops.h \
> + $(top_srcdir)/lib/quota/quotaio.h $(top_srcdir)/lib/quota/dqblk_v2.h \
> + $(top_srcdir)/lib/quota/quotaio_tree.h $(top_srcdir)/lib/../e2fsck/dict.h
> +extent_inode.o: $(srcdir)/extent_inode.c $(top_builddir)/lib/config.h \
> + $(top_builddir)/lib/dirpaths.h $(srcdir)/debugfs.h $(top_srcdir)/lib/ss/ss.h \
> + $(top_builddir)/lib/ss/ss_err.h $(top_srcdir)/lib/et/com_err.h \
> + $(top_srcdir)/lib/ext2fs/ext2_fs.h $(top_builddir)/lib/ext2fs/ext2_types.h \
> + $(top_srcdir)/lib/ext2fs/ext2fs.h $(top_srcdir)/lib/ext2fs/ext3_extents.h \
> + $(top_srcdir)/lib/ext2fs/ext2_io.h $(top_builddir)/lib/ext2fs/ext2_err.h \
> + $(top_srcdir)/lib/ext2fs/ext2_ext_attr.h $(top_srcdir)/lib/ext2fs/bitops.h \
> + $(top_srcdir)/lib/quota/quotaio.h $(top_srcdir)/lib/quota/dqblk_v2.h \
> + $(top_srcdir)/lib/quota/quotaio_tree.h $(top_srcdir)/lib/../e2fsck/dict.h
> +zap.o: $(srcdir)/zap.c $(top_builddir)/lib/config.h \
> + $(top_builddir)/lib/dirpaths.h $(srcdir)/debugfs.h $(top_srcdir)/lib/ss/ss.h \
> + $(top_builddir)/lib/ss/ss_err.h $(top_srcdir)/lib/et/com_err.h \
> + $(top_srcdir)/lib/ext2fs/ext2_fs.h $(top_builddir)/lib/ext2fs/ext2_types.h \
> + $(top_srcdir)/lib/ext2fs/ext2fs.h $(top_srcdir)/lib/ext2fs/ext3_extents.h \
> + $(top_srcdir)/lib/ext2fs/ext2_io.h $(top_builddir)/lib/ext2fs/ext2_err.h \
> + $(top_srcdir)/lib/ext2fs/ext2_ext_attr.h $(top_srcdir)/lib/ext2fs/bitops.h \
> + $(top_srcdir)/lib/quota/quotaio.h $(top_srcdir)/lib/quota/dqblk_v2.h \
> + $(top_srcdir)/lib/quota/quotaio_tree.h $(top_srcdir)/lib/../e2fsck/dict.h
> +quota.o: $(srcdir)/quota.c $(top_builddir)/lib/config.h \
> + $(top_builddir)/lib/dirpaths.h $(srcdir)/debugfs.h $(top_srcdir)/lib/ss/ss.h \
> + $(top_builddir)/lib/ss/ss_err.h $(top_srcdir)/lib/et/com_err.h \
> + $(top_srcdir)/lib/ext2fs/ext2_fs.h $(top_builddir)/lib/ext2fs/ext2_types.h \
> + $(top_srcdir)/lib/ext2fs/ext2fs.h $(top_srcdir)/lib/ext2fs/ext3_extents.h \
> + $(top_srcdir)/lib/ext2fs/ext2_io.h $(top_builddir)/lib/ext2fs/ext2_err.h \
> + $(top_srcdir)/lib/ext2fs/ext2_ext_attr.h $(top_srcdir)/lib/ext2fs/bitops.h \
> + $(top_srcdir)/lib/quota/quotaio.h $(top_srcdir)/lib/quota/dqblk_v2.h \
> + $(top_srcdir)/lib/quota/quotaio_tree.h $(top_srcdir)/lib/../e2fsck/dict.h
> diff --git a/debugfs/debug_cmds.ct b/debugfs/debug_cmds.ct
> index 96ff00f..6a18df6 100644
> --- a/debugfs/debug_cmds.ct
> +++ b/debugfs/debug_cmds.ct
> @@ -190,5 +190,11 @@ request do_zap_block, "Zap block: fill with 0, pattern, flip bits etc.",
>  request do_block_dump, "Dump contents of a block",
>         block_dump, bd;
>
> +request do_list_quota, "List quota",
> +       list_quota, lq;
> +
> +request do_get_quota, "Get quota",
> +       get_quota, gq;
> +
>  end;
>
> diff --git a/debugfs/debugfs.c b/debugfs/debugfs.c
> index 0e56ead..326f41e 100644
> --- a/debugfs/debugfs.c
> +++ b/debugfs/debugfs.c
> @@ -56,6 +56,7 @@ const char *debug_prog_name;
>  int sci_idx;
>
>  ext2_filsys    current_fs = NULL;
> +quota_ctx_t    current_qctx;
>  ext2_ino_t     root, cwd;
>
>  static void open_filesystem(char *device, int open_flags, blk64_t superblock,
> @@ -238,6 +239,8 @@ static void close_filesystem(NOARGS)
>                 if (retval)
>                         com_err("ext2fs_write_block_bitmap", retval, 0);
>         }
> +       if (current_qctx)
> +               quota_release_context(&current_qctx);
>         retval = ext2fs_close(current_fs);
>         if (retval)
>                 com_err("ext2fs_close", retval, 0);
> diff --git a/debugfs/debugfs.h b/debugfs/debugfs.h
> index 33389fa..9b67f69 100644
> --- a/debugfs/debugfs.h
> +++ b/debugfs/debugfs.h
> @@ -5,6 +5,7 @@
>  #include "ss/ss.h"
>  #include "ext2fs/ext2_fs.h"
>  #include "ext2fs/ext2fs.h"
> +#include "quota/quotaio.h"
>
>  #ifdef __STDC__
>  #define NOARGS void
> @@ -21,6 +22,7 @@
>  #define CHECK_FS_NOTOPEN       0x0004
>
>  extern ext2_filsys current_fs;
> +extern quota_ctx_t current_qctx;
>  extern ext2_ino_t      root, cwd;
>  extern int sci_idx;
>  extern ss_request_table debug_cmds, extent_cmds;
> @@ -171,6 +173,10 @@ extern void do_set_mmp_value(int argc, char **argv);
>  extern void do_freefrag(int argc, char **argv);
>  extern void do_filefrag(int argc, char *argv[]);
>
> +/* quota.c */
> +extern void do_list_quota(int argc, char *argv[]);
> +extern void do_get_quota(int argc, char *argv[]);
> +
>  /* util.c */
>  extern time_t string_to_time(const char *arg);
>
> diff --git a/debugfs/quota.c b/debugfs/quota.c
> new file mode 100644
> index 0000000..cbf237a
> --- /dev/null
> +++ b/debugfs/quota.c
> @@ -0,0 +1,170 @@
> +/*
> + * quota.c --- debugfs quota commands
> + *
> + * Copyright (C) 2014 Theodore Ts'o.  This file may be redistributed
> + * under the terms of the GNU Public License.
> + */
> +
> +#include "config.h"
> +#include <stdio.h>
> +#include <unistd.h>
> +#include <stdlib.h>
> +#include <ctype.h>
> +#include <string.h>
> +#include <time.h>
> +#ifdef HAVE_ERRNO_H
> +#include <errno.h>
> +#endif
> +#include <sys/types.h>
> +#ifdef HAVE_GETOPT_H
> +#include <getopt.h>
> +#else
> +extern int optind;
> +extern char *optarg;
> +#endif
> +
> +#include "debugfs.h"
> +
> +const char *quota_type[] = { "user", "group", NULL };
> +
> +static int load_quota_ctx(char *progname)
> +{
> +       errcode_t       retval;
> +
> +       if (check_fs_open(progname))
> +               return 1;
> +
> +       if (!EXT2_HAS_RO_COMPAT_FEATURE(current_fs->super,
> +                                       EXT4_FEATURE_RO_COMPAT_QUOTA)) {
> +               com_err(progname, 0, "quota feature not eanbled");
> +               return 1;
> +       }
> +
> +       if (current_qctx)
> +               return 0;
> +
> +       retval = quota_init_context(&current_qctx, current_fs, -1);
> +       if (retval) {
> +               com_err(current_fs->device_name, retval,
> +                       "while trying to load quota information");
> +               return 1;
> +       }
> +       return 0;
> +}
> +
> +static int parse_quota_type(const char *cmdname, const char *str)
> +{
> +       errcode_t       retval;
> +       char            *t;
> +       int             flags = 0;
> +       int             i;
> +
> +       for (i = 0; i < MAXQUOTAS; i++) {
> +               if (strcasecmp(str, quota_type[i]) == 0)
> +                       break;
> +       }
> +       if (i >= MAXQUOTAS) {
> +               i = strtol(str, &t, 0);
> +               if (*t)
> +                       i = -1;
> +       }
> +       if (i < 0 || i >= MAXQUOTAS) {
> +               com_err(0, 0, "Invalid quota type: %s", str);
> +               printf("Valid quota types are: ");
> +               for (i = 0; i < MAXQUOTAS; i++)
> +                       printf("%s ", quota_type[i]);
> +               printf("\n");
> +               return -1;
> +       }
> +
> +       if (current_fs->flags & EXT2_FLAG_RW)
> +               flags |= EXT2_FILE_WRITE;
> +
> +       retval = quota_file_open(current_qctx, NULL, 0, i, -1, flags);
> +       if (retval) {
> +               com_err(cmdname, retval,
> +                       "while opening quota inode (type %d)", i);
> +               return -1;
> +       }
> +       return i;
> +}
> +
> +
> +static int list_quota_callback(struct dquot *dq, void *cb_data)
> +{
> +       printf("%8u   %8lld %8lld %8lld    %8lld %8lld %8lld\n",
> +              dq->dq_id, dq->dq_dqb.dqb_curspace,
> +              dq->dq_dqb.dqb_bsoftlimit, dq->dq_dqb.dqb_bhardlimit,
> +              dq->dq_dqb.dqb_curinodes,
> +              dq->dq_dqb.dqb_isoftlimit, dq->dq_dqb.dqb_ihardlimit);
> +}
> +
> +void do_list_quota(int argc, char *argv[])
> +{
> +       errcode_t       retval;
> +       int             i, type;
> +       int             flags = 0;
> +       struct quota_handle *qh;
> +
> +       if (load_quota_ctx(argv[0]))
> +               return;
> +
> +       if (argc != 2) {
> +               com_err(0, 0, "Usage: list_quota <quota_type>\n");
> +               return;
> +       }
> +
> +       type = parse_quota_type(argv[0], argv[1]);
> +       if (type < 0)
> +               return;
> +
> +       printf("%8s   %8s %8s %8s    %8s %8s %8s\n",
> +              (type == 0) ? "user id" : "group id",
> +              "blocks", "quota", "limit", "inodes", "quota", "limit");
> +       qh = current_qctx->quota_file[type];
> +       retval = qh->qh_ops->scan_dquots(qh, list_quota_callback, NULL);
> +       if (retval) {
> +               com_err(argv[0], retval, "while scanning dquots");
> +               return;
> +       }
> +}
> +
> +void do_get_quota(int argc, char *argv[])
> +{
> +       errcode_t       retval;
> +       int             i, err, type;
> +       int             flags = 0;
> +       struct quota_handle *qh;
> +       struct dquot    *dq;
> +       qid_t           id;
> +
> +       if (load_quota_ctx(argv[0]))
> +               return;
> +
> +       if (argc != 3) {
> +               com_err(0, 0, "Usage: get_quota <quota_type> <id>\n");
> +               return;
> +       }
> +
> +       type = parse_quota_type(argv[0], argv[1]);
> +       if (type < 0)
> +               return;
> +
> +       id = parse_ulong(argv[2], argv[0], "id", &err);
> +       if (err)
> +               return;
> +
> +       printf("%8s   %8s %8s %8s    %8s %8s %8s\n",
> +              (type == 0) ? "user id" : "group id",
> +              "blocks", "quota", "limit", "inodes", "quota", "limit");
> +
> +       qh = current_qctx->quota_file[type];
> +
> +       dq = qh->qh_ops->read_dquot(qh, id);
> +       if (dq) {
> +               list_quota_callback(dq, NULL);
> +               ext2fs_free_mem(&dq);
> +       } else
> +               com_err(argv[0], 0, "couldn't read quota record");
> +
> +}
> diff --git a/debugfs/ro_debug_cmds.ct b/debugfs/ro_debug_cmds.ct
> index 8226d1a..736ade6 100644
> --- a/debugfs/ro_debug_cmds.ct
> +++ b/debugfs/ro_debug_cmds.ct
> @@ -90,5 +90,10 @@ request do_dump_mmp, "Dump MMP information",
>  request do_extent_open, "Open inode for extent manipulation",
>         extent_open, eo;
>
> -end;
> +request do_list_quota, "List quota",
> +       lost_quota, lq;
> +
> +request do_get_quota, "Get quota",
> +       get_quota, gq;
>
> +end;
> --
> 1.9.0
>



-- 
Aditya