€•5!      Œsphinx.addnodes”Œdocument”“”)”}”(Œ	rawsource”Œ ”Œchildren”]”(Œtranslations”ŒLanguagesNode”“”)”}”(hhh]”(h Œpending_xref”“”)”}”(hhh]”Œdocutils.nodes”ŒText”“”ŒChinese (Simplified)”…””}”Œparent”hsbaŒ
attributes”}”(Œids”]”Œclasses”]”Œnames”]”Œdupnames”]”Œbackrefs”]”Œ	refdomain”Œstd”Œreftype”Œdoc”Œ	reftarget”Œ//translations/zh_CN/filesystems/ext4/inlinedata”Œmodname”NŒ	classname”NŒrefexplicit”ˆuŒtagname”hhhubh)”}”(hhh]”hŒChinese (Traditional)”…””}”hh2sbah}”(h]”h ]”h"]”h$]”h&]”Œ	refdomain”h)Œreftype”h+Œ	reftarget”Œ//translations/zh_TW/filesystems/ext4/inlinedata”Œmodname”NŒ	classname”NŒrefexplicit”ˆuh1hhhubh)”}”(hhh]”hŒItalian”…””}”hhFsbah}”(h]”h ]”h"]”h$]”h&]”Œ	refdomain”h)Œreftype”h+Œ	reftarget”Œ//translations/it_IT/filesystems/ext4/inlinedata”Œmodname”NŒ	classname”NŒrefexplicit”ˆuh1hhhubh)”}”(hhh]”hŒJapanese”…””}”hhZsbah}”(h]”h ]”h"]”h$]”h&]”Œ	refdomain”h)Œreftype”h+Œ	reftarget”Œ//translations/ja_JP/filesystems/ext4/inlinedata”Œmodname”NŒ	classname”NŒrefexplicit”ˆuh1hhhubh)”}”(hhh]”hŒKorean”…””}”hhnsbah}”(h]”h ]”h"]”h$]”h&]”Œ	refdomain”h)Œreftype”h+Œ	reftarget”Œ//translations/ko_KR/filesystems/ext4/inlinedata”Œmodname”NŒ	classname”NŒrefexplicit”ˆuh1hhhubh)”}”(hhh]”hŒSpanish”…””}”hh‚sbah}”(h]”h ]”h"]”h$]”h&]”Œ	refdomain”h)Œreftype”h+Œ	reftarget”Œ//translations/sp_SP/filesystems/ext4/inlinedata”Œmodname”NŒ	classname”NŒrefexplicit”ˆuh1hhhubeh}”(h]”h ]”h"]”h$]”h&]”Œcurrent_language”ŒEnglish”uh1h
hhŒ	_document”hŒsource”NŒline”NubhŒcomment”“”)”}”(hŒ SPDX-License-Identifier: GPL-2.0”h]”hŒ SPDX-License-Identifier: GPL-2.0”…””}”hh£sbah}”(h]”h ]”h"]”h$]”h&]”Œ	xml:space”Œpreserve”uh1h¡hhhžhhŸŒI/var/lib/git/docbuild/linux/Documentation/filesystems/ext4/inlinedata.rst”h KubhŒsection”“”)”}”(hhh]”(hŒtitle”“”)”}”(hŒInline Data”h]”hŒInline Data”…””}”(hh»hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h¹hh¶hžhhŸh³h KubhŒ	paragraph”“”)”}”(hX¢  The inline data feature was designed to handle the case that a file's
data is so tiny that it readily fits inside the inode, which
(theoretically) reduces disk block consumption and reduces seeks. If the
file is smaller than 60 bytes, then the data are stored inline in
``inode.i_block``. If the rest of the file would fit inside the extended
attribute space, then it might be found as an extended attribute
â€œsystem.dataâ€ within the inode body (â€œibody EAâ€). This of course
constrains the amount of extended attributes one can attach to an inode.
If the data size increases beyond i_block + ibody EA, a regular block
is allocated and the contents moved to that block.”h]”(hX  The inline data feature was designed to handle the case that a fileâ€™s
data is so tiny that it readily fits inside the inode, which
(theoretically) reduces disk block consumption and reduces seeks. If the
file is smaller than 60 bytes, then the data are stored inline in
”…””}”(hhËhžhhŸNh NubhŒliteral”“”)”}”(hŒ``inode.i_block``”h]”hŒinode.i_block”…””}”(hhÕhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÓhhËubhXƒ  . If the rest of the file would fit inside the extended
attribute space, then it might be found as an extended attribute
â€œsystem.dataâ€ within the inode body (â€œibody EAâ€). This of course
constrains the amount of extended attributes one can attach to an inode.
If the data size increases beyond i_block + ibody EA, a regular block
is allocated and the contents moved to that block.”…””}”(hhËhžhhŸNh Nubeh}”(h]”h ]”h"]”h$]”h&]”uh1hÉhŸh³h Khh¶hžhubhÊ)”}”(hX  Pending a change to compact the extended attribute key used to store
inline data, one ought to be able to store 160 bytes of data in a
256-byte inode (as of June 2015, when i_extra_isize is 28). Prior to
that, the limit was 156 bytes due to inefficient use of inode space.”h]”hX  Pending a change to compact the extended attribute key used to store
inline data, one ought to be able to store 160 bytes of data in a
256-byte inode (as of June 2015, when i_extra_isize is 28). Prior to
that, the limit was 156 bytes due to inefficient use of inode space.”…””}”(hhíhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÉhŸh³h Khh¶hžhubhÊ)”}”(hŒ‰The inline data feature requires the presence of an extended attribute
for â€œsystem.dataâ€, even if the attribute value is zero length.”h]”hŒ‰The inline data feature requires the presence of an extended attribute
for â€œsystem.dataâ€, even if the attribute value is zero length.”…””}”(hhûhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÉhŸh³h Khh¶hžhubhµ)”}”(hhh]”(hº)”}”(hŒInline Directories”h]”hŒInline Directories”…””}”(hj  hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h¹hj	  hžhhŸh³h KubhÊ)”}”(hX¶  The first four bytes of i_block are the inode number of the parent
directory. Following that is a 56-byte space for an array of directory
entries; see ``struct ext4_dir_entry``. If there is a â€œsystem.dataâ€
attribute in the inode body, the EA value is an array of
``struct ext4_dir_entry`` as well. Note that for inline directories, the
i_block and EA space are treated as separate dirent blocks; directory
entries cannot span the two.”h]”(hŒ—The first four bytes of i_block are the inode number of the parent
directory. Following that is a 56-byte space for an array of directory
entries; see ”…””}”(hj  hžhhŸNh NubhÔ)”}”(hŒ``struct ext4_dir_entry``”h]”hŒstruct ext4_dir_entry”…””}”(hj"  hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÓhj  ubhŒ[. If there is a â€œsystem.dataâ€
attribute in the inode body, the EA value is an array of
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i_block and EA space are treated as separate dirent blocks; directory
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