From: Zheng Liu <gnehzuil.liu@gmail.com>
To: "Darrick J. Wong" <darrick.wong@oracle.com>
Cc: linux-ext4@vger.kernel.org, Theodore Ts'o <tytso@mit.edu>,
Zheng Liu <wenqing.lz@taobao.com>
Subject: Re: [PATCH v1 04/22] libext2fs: handle inline data in dir iterator function
Date: Sat, 12 Oct 2013 13:55:21 +0800 [thread overview]
Message-ID: <20131012055521.GB6377@gmail.com> (raw)
In-Reply-To: <20131011233342.GB20432@birch.djwong.org>
On Fri, Oct 11, 2013 at 04:33:42PM -0700, Darrick J. Wong wrote:
[..]
> > +errcode_t ext2fs_inline_data_iterate(ext2_filsys fs,
> > + ext2_ino_t ino,
> > + int flags,
> > + char *block_buf,
> > + int (*func)(ext2_filsys fs,
> > + char *buf,
> > + unsigned int buf_len,
> > + e2_blkcnt_t blockcnt,
> > + struct ext2_inode_large *inode,
> > + void *priv_data),
> > + void *priv_data)
> > +{
> > + struct dir_context *ctx;
> > + struct ext2_inode_large *inode;
> > + struct ext2_dir_entry dirent;
> > + struct inline_data data;
> > + errcode_t retval = 0;
> > + e2_blkcnt_t blockcnt = 0;
> > + void *inline_start;
> > + int inline_size;
> > +
> > + ctx = (struct dir_context *)priv_data;
> > +
> > + retval = ext2fs_get_mem(EXT2_INODE_SIZE(fs->super), &inode);
> > + if (retval)
> > + return retval;
> > +
> > + retval = ext2fs_read_inode_full(fs, ino, (void *)inode,
> > + EXT2_INODE_SIZE(fs->super));
> > + if (retval)
> > + goto out;
> > +
> > + if (inode->i_size == 0)
> > + goto out;
> > +
> > + /* we first check '.' and '..' dir */
> > + dirent.inode = ino;
> > + dirent.name_len = 1;
> > + ext2fs_set_rec_len(fs, EXT2_DIR_REC_LEN(2), &dirent);
> > + dirent.name[0] = '.';
> > + dirent.name[1] = '\0';
> > + retval |= (*func)(fs, (void *)&dirent, dirent.rec_len, blockcnt++,
> > + inode, priv_data);
> > + if (retval & BLOCK_ABORT)
> > + goto out;
> > +
> > + dirent.inode = (__u32)*inode->i_block;
> > + dirent.name_len = 2;
> > + ext2fs_set_rec_len(fs, EXT2_DIR_REC_LEN(3), &dirent);
> > + dirent.name[0] = '.';
> > + dirent.name[1] = '.';
> > + dirent.name[2] = '\0';
> > + retval |= (*func)(fs, (void *)&dirent, dirent.rec_len, blockcnt++,
> > + inode, priv_data);
> > + if (retval & BLOCK_ABORT)
> > + goto out;
>
> Perhaps this function should be called ext2fs_inline_dirblock_iterate()?
> The name alone makes me think this function could work for regular inline_data
> files, if such things ever exist.
Fair enough. I will fix it in next version.
Thanks,
- Zheng
>
> --D
>
> > +
> > + inline_start = (char *)inode->i_block + EXT4_INLINE_DATA_DOTDOT_SIZE;
> > + inline_size = EXT4_MIN_INLINE_DATA_SIZE - EXT4_INLINE_DATA_DOTDOT_SIZE;
> > + retval |= (*func)(fs, inline_start, inline_size, blockcnt++,
> > + inode, priv_data);
> > + if (retval & BLOCK_ABORT)
> > + goto out;
> > +
> > + retval = ext2fs_inline_data_find(fs, inode, &data);
> > + if (retval)
> > + goto out;
> > + if (data.inline_size > EXT4_MIN_INLINE_DATA_SIZE) {
> > + inline_start = ext2fs_get_inline_xattr_pos(inode, &data);
> > + inline_size = data.inline_size - EXT4_MIN_INLINE_DATA_SIZE;
> > + retval |= (*func)(fs, inline_start, inline_size, blockcnt++,
> > + inode, priv_data);
> > + if (retval & BLOCK_ABORT)
> > + goto out;
> > + }
> > +
> > +out:
> > + retval |= BLOCK_ERROR;
> > + ext2fs_free_mem(&inode);
> > + return retval & BLOCK_ERROR ? ctx->errcode : 0;
> > +}
> > --
> > 1.7.9.7
> >
> > --
> > To unsubscribe from this list: send the line "unsubscribe linux-ext4" in
> > the body of a message to majordomo@vger.kernel.org
> > More majordomo info at http://vger.kernel.org/majordomo-info.html
next prev parent reply other threads:[~2013-10-12 5:53 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 [this message]
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
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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