From: "Darrick J. Wong" <darrick.wong@oracle.com>
To: Zheng Liu <gnehzuil.liu@gmail.com>
Cc: linux-ext4@vger.kernel.org, "Theodore Ts'o" <tytso@mit.edu>,
Zheng Liu <wenqing.lz@taobao.com>
Subject: Re: [PATCH v1 15/22] tune2fs: add inline_data feature in tune2fs
Date: Fri, 11 Oct 2013 17:39:45 -0700 [thread overview]
Message-ID: <20131012003945.GW6860@birch.djwong.org> (raw)
In-Reply-To: <1375436989-18948-16-git-send-email-wenqing.lz@taobao.com>
On Fri, Aug 02, 2013 at 05:49:42PM +0800, Zheng Liu wrote:
> From: Zheng Liu <wenqing.lz@taobao.com>
>
> Inline_data feature can be set when ext_attr feature is enabled. Now this
> feature only can be enabled because we may be out of space when disabling
> it. If this feature is disabled, we need to allocate a block for every
> file and directory, and it might exhaust all space.
>
> Signed-off-by: Theodore Ts'o <tytso@mit.edu>
> Signed-off-by: Zheng Liu <wenqing.lz@taobao.com>
> ---
> misc/tune2fs.8.in | 5 +++++
> misc/tune2fs.c | 17 ++++++++++++++++-
> 2 files changed, 21 insertions(+), 1 deletion(-)
>
> diff --git a/misc/tune2fs.8.in b/misc/tune2fs.8.in
> index 55c6dd9..b768fff 100644
> --- a/misc/tune2fs.8.in
> +++ b/misc/tune2fs.8.in
> @@ -531,6 +531,11 @@ Setting the filesystem feature is equivalent to using the
> .B \-j
> option.
> .TP
> +.B inline_data
> +Allow data to be stored in inode.
> +.B Tune2fs
> +only supports setting this filesystem feature.
> +.TP
> .B large_file
> Filesystem can contain files that are greater than 2GB. (Modern kernels
> set this feature automatically when a file > 2GB is created.)
> diff --git a/misc/tune2fs.c b/misc/tune2fs.c
> index 7d6520e..f22a736 100644
> --- a/misc/tune2fs.c
> +++ b/misc/tune2fs.c
> @@ -137,7 +137,8 @@ static __u32 ok_features[3] = {
> EXT2_FEATURE_INCOMPAT_FILETYPE |
> EXT3_FEATURE_INCOMPAT_EXTENTS |
> EXT4_FEATURE_INCOMPAT_FLEX_BG |
> - EXT4_FEATURE_INCOMPAT_MMP,
> + EXT4_FEATURE_INCOMPAT_MMP |
> + EXT4_FEATURE_INCOMPAT_INLINE_DATA,
> /* R/O compat */
> EXT2_FEATURE_RO_COMPAT_LARGE_FILE |
> EXT4_FEATURE_RO_COMPAT_HUGE_FILE|
> @@ -995,6 +996,20 @@ mmp_error:
> disable_uninit_bg(fs,
> EXT4_FEATURE_RO_COMPAT_GDT_CSUM);
>
> + if (FEATURE_ON(E2P_FEATURE_INCOMPAT,
> + EXT4_FEATURE_INCOMPAT_INLINE_DATA)) {
> + /* Inline_data feature cannot be enabled if ext_attr is
> + * disabled.
> + */
Multiline comment issue.
> + if (!(fs->super->s_feature_compat &
> + EXT2_FEATURE_COMPAT_EXT_ATTR)) {
EXT2_HAS_COMPAT_FEATURE()?
> + fputs(_("The inline_data feature cannot "
> + "be set if ext_attr feature is disabled.\n"),
> + stderr);
> + return 1;
> + }
> + }
> +
Maybe I'm missing something, but I don't see anything prohibiting the user from
disabling inline_data? Or from doing the conversion?
--D
> if (FEATURE_ON(E2P_FEATURE_RO_INCOMPAT,
> EXT4_FEATURE_RO_COMPAT_QUOTA)) {
> /*
> --
> 1.7.9.7
>
> --
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> More majordomo info at http://vger.kernel.org/majordomo-info.html
next prev parent reply other threads:[~2013-10-12 0:39 UTC|newest]
Thread overview: 67+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-08-02 9:49 [PATCH v1 00/22] e2fsprogs: inline data refinement patch set Zheng Liu
2013-08-02 9:49 ` [PATCH v1 01/22] libext2fs: add INLINE_DATA into EXT2_LIB_SOFTSUPP_INCOMPAT Zheng Liu
2013-10-13 3:21 ` Theodore Ts'o
2013-08-02 9:49 ` [PATCH v1 02/22] libext2fs: add function to check inline_data flag for an inode Zheng Liu
2013-08-02 9:49 ` [PATCH v1 03/22] libext2fs: add functions to operate on extended attribute Zheng Liu
2013-08-05 17:34 ` Darrick J. Wong
2013-08-05 23:14 ` Zheng Liu
2013-10-14 1:55 ` Theodore Ts'o
2013-10-14 2:41 ` Zheng Liu
2013-10-11 22:51 ` Darrick J. Wong
2013-10-12 5:51 ` Zheng Liu
2013-10-12 8:32 ` Darrick J. Wong
2013-10-12 8:41 ` Zheng Liu
2013-10-12 9:02 ` Darrick J. Wong
2013-10-12 9:08 ` Zheng Liu
2013-08-02 9:49 ` [PATCH v1 04/22] libext2fs: handle inline data in dir iterator function Zheng Liu
2013-10-11 23:33 ` Darrick J. Wong
2013-10-12 5:55 ` Zheng Liu
2013-10-13 22:51 ` Theodore Ts'o
2013-10-14 3:07 ` Zheng Liu
2013-10-14 1:58 ` Theodore Ts'o
2013-08-02 9:49 ` [PATCH v1 05/22] libext2fs: handle inline_data in block " Zheng Liu
2013-10-13 3:55 ` Theodore Ts'o
2013-10-14 0:44 ` Theodore Ts'o
2013-10-14 2:49 ` Zheng Liu
2013-08-02 9:49 ` [PATCH v1 06/22] debugfs: make stat command support inline data Zheng Liu
2013-10-11 23:43 ` Darrick J. Wong
2013-10-12 0:07 ` Darrick J. Wong
2013-08-02 9:49 ` [PATCH v1 07/22] debugfs: make mkdir and expanddir " Zheng Liu
2013-10-12 0:21 ` Darrick J. Wong
2013-10-12 7:15 ` Zheng Liu
2013-08-02 9:49 ` [PATCH v1 08/22] debugfs: make lsdel " Zheng Liu
2013-08-02 9:49 ` [PATCH v1 09/22] libext2fs: handle inline data in read/write function Zheng Liu
2013-08-02 9:49 ` [PATCH v1 10/22] debugfs: handle inline_data feature in dirsearch command Zheng Liu
2013-10-12 0:30 ` Darrick J. Wong
2013-10-12 7:21 ` Zheng Liu
2013-08-02 9:49 ` [PATCH v1 11/22] debugfs: handle inline_data feature in bmap command Zheng Liu
2013-08-02 9:49 ` [PATCH v1 12/22] debugfs: handle inline_data in punch command Zheng Liu
2013-10-12 0:37 ` Darrick J. Wong
2013-10-12 7:22 ` Zheng Liu
2013-08-02 9:49 ` [PATCH v1 13/22] libext2fs: add inline_data feature into EXT2_LIB_FEATURE_INCOMPAT_SUPP Zheng Liu
2013-08-02 9:49 ` [PATCH v1 14/22] mke2fs: add inline_data support in mke2fs Zheng Liu
2013-10-12 0:27 ` Darrick J. Wong
2013-10-12 8:08 ` Zheng Liu
2013-10-12 8:18 ` Darrick J. Wong
2013-10-12 8:31 ` Zheng Liu
2013-10-12 8:32 ` Darrick J. Wong
2013-08-02 9:49 ` [PATCH v1 15/22] tune2fs: add inline_data feature in tune2fs Zheng Liu
2013-10-12 0:39 ` Darrick J. Wong [this message]
2013-10-12 8:16 ` Zheng Liu
2013-10-12 8:23 ` Darrick J. Wong
2013-10-12 8:33 ` Zheng Liu
2013-08-02 9:49 ` [PATCH v1 16/22] e2fsck: add problem descriptions and check inline data feature Zheng Liu
2013-08-02 9:49 ` [PATCH v1 17/22] e2fsck: check inline_data in pass1 Zheng Liu
2013-10-12 0:47 ` Darrick J. Wong
2013-10-12 8:17 ` Zheng Liu
2013-08-02 9:49 ` [PATCH v1 18/22] e2fsck: check inline_data in pass2 Zheng Liu
2013-08-02 9:49 ` [PATCH v1 19/22] e2fsck: check inline_data in pass3 Zheng Liu
2013-10-12 0:54 ` Darrick J. Wong
2013-10-12 9:06 ` Zheng Liu
2013-10-12 9:09 ` Darrick J. Wong
2013-10-12 9:17 ` Zheng Liu
2013-10-12 9:22 ` Darrick J. Wong
2013-10-12 9:32 ` Zheng Liu
2013-08-02 9:49 ` [PATCH v1 20/22] tests: change result in f_bad_disconnected_inode Zheng Liu
2013-08-02 9:49 ` [PATCH v1 21/22] mke2fs: enable inline_data feature on ext4dev filesystem Zheng Liu
2013-08-02 9:49 ` [PATCH v1 22/22] libext2fs: add a unit test for inline data Zheng Liu
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