From 2d4fb19d0c3f438467319df3555981cf0bd1b7b1 Mon Sep 17 00:00:00 2001 From: Masanori Kobayasi Date: Mon, 11 Jun 2012 22:32:29 +0900 Subject: [PATCH] Release docs/kernel-docs-2.6/filesystems/ext4.txt [JF:20088] --- docs/kernel-docs-2.6/filesystems/ext4.txt | 83 +++++++++++--------------- docs/kernel-docs-2.6/filesystems/ext4.txt.info | 4 +- www/news.m4 | 3 + 3 files changed, 39 insertions(+), 51 deletions(-) diff --git a/docs/kernel-docs-2.6/filesystems/ext4.txt b/docs/kernel-docs-2.6/filesystems/ext4.txt index 40eb119..c0487b6 100644 --- a/docs/kernel-docs-2.6/filesystems/ext4.txt +++ b/docs/kernel-docs-2.6/filesystems/ext4.txt @@ -1,9 +1,9 @@ ========================================================= ¤³¤ì¤Ï¡¢ -linux-3.3/Documentation/filesystems/ext4.txt ¤ÎÏÂÌõ +linux-3.4.1/Documentation/filesystems/ext4.txt ¤ÎÏÂÌõ ¤Ç¤¹¡£ ËÝÌõÃÄÂΡ§ JF ¥×¥í¥¸¥§¥¯¥È < http://www.linux.or.jp/JF/ > -¹¹¿·Æü ¡§ 2012/05/11 +¹¹¿·Æü ¡§ 2012/06/10 ËÝÌõ¼Ô ¡§ Seiji Kaneko < skaneko at mbn dot or dot jp > ººÆÉ¼Ô : Hiroshi Suzuki ========================================================= @@ -63,7 +63,7 @@ ext4 # 1.41.x. - e2fsprogs 1.41.x ¥½¡¼¥¹ÉÕ°¤Î mke2fs.conf ¥Õ¥¡¥¤¥ë¤ò /etc/mke2fs.conf ¤Ë¥¤¥ó¥¹¥È¡¼¥ë¤¹¤ë¤³¤È¤¬¤È¤Æ¤â½ÅÍפǤ¹¡£¥·¥¹¥Æ¥à¤Ë¥¤¥ó¥¹¥È¡¼¥ë¤·¤Æ¤¢¤ë - /etc/mke2fs.conf ¥Õ¥¡¥¤¥ë¤ò¤¹¤Ç¤ËÊÔ½¸¤·¤Æ¤¤¤ë¾ì¹ç¤Ï¡¢e2fsprogs 1.41.x + /etc/mke2fs.conf ¥Õ¥¡¥¤¥ë¤ò¤¹¤Ç¤ËÊÔ½¸¤·¤Æ¤¤¤ë¾ì¹ç¤Ï¡¢e2fsprogs 1.41.x ¤ÎÈǤΤâ¤Î¤Ë´û¸¤Î½¤Àµ¤ò¥Þ¡¼¥¸¤¹¤ëɬÍפ¬¤¢¤ê¤Þ¤¹¡£ # - Create a new filesystem using the ext4 filesystem type: @@ -71,7 +71,7 @@ ext4 # mke2fs -t ext4 /dev/hda1 -# Or to configure an existing ext3 filesystem to support extents: +# Or to configure an existing ext3 filesystem to support extents: ¤Þ¤¿¤Ï¡¢´û¸¤Î ext3 ¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤ò¡¢¥¨¥¯¥¹¥Æ¥ó¥È¤ò¥µ¥Ý¡¼¥È¤¹¤ë¤è ¤¦ÀßÄꤷ¤Þ¤¹¡£ @@ -121,7 +121,7 @@ ext4 ¼¨Åª¤Ë¡¢ext3 ¤È ext4 ¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤È¤â '-o barriers=[0|1]' ¤ò»È¤Ã¤Æ »ØÄꤹ¤ë¤Î¤¬Ìò¤ËΩ¤Ä¤Ç¤·¤ç¤¦¡£ext4 ¤òºÇ¹â¤Î¥Ù¥ó¥Á¥Þ¡¼¥¯·ë²Ì¤È¤Ê¤ë¤è¤¦ ¤Ë¥Á¥å¡¼¥Ë¥ó¥°¤¹¤ë¾ì¹ç¡¢¥Ç¡¼¥¿¥¸¥ã¡¼¥Ê¥ê¥ó¥°¥â¡¼¥É¤ÎÊѹ¹¤ò»î¤¹¤³¤È¤Ë¤Ï - ²ÁÃͤ¬¤¢¤ê¤Þ¤¹¡£Î㤨¤Ð¡¢°ìÉô¤Î¥Ù¥ó¥Á¥Þ¡¼¥¯¤Ç¤Ï + ²ÁÃͤ¬¤¢¤ê¤Þ¤¹¡£Î㤨¤Ð¡¢°ìÉô¤Î¥Ù¥ó¥Á¥Þ¡¼¥¯¤Ç¤Ï '-o data=writeback' ¤Ï¾¤è¤ê¹â®¤È¤Ê¤ë¤Ç¤·¤ç¤¦ (Ãí°Õ¤È¤·¤Æ¡¢ data=writeback ¥â¡¼¥É¤Ç¥Þ¥¦¥ó¥È±¿ÍѤ·¤Æ¤¤¤ë¾ì¹ç¡¢¥¯¥ê¡¼¥ó¤Ç¤Ê¤¤¥·¥ã¥Ã ¥È¥À¥¦¥ó¤ÇľÁ°¤Ë½ñ¤¤¤¿¥Ç¡¼¥¿¤¬¥´¥ß¤È¤·¤Æ»Ä¤ë²ÄǽÀ­¤¬¤¢¤ë¤¿¤á¡¢¾õ¶·¤Ë¤è @@ -234,8 +234,8 @@ ext4 # writes to the filesystem. ro ¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤ò¥ê¡¼¥É¥ª¥ó¥ê¡¼¤Ç¥Þ¥¦¥ó¥È¤¹¤ë¡£ext4 ¤Ï¥ê¡¼¥É¥ª¥ó¥ê¡¼¤Ç¥Þ¥¦¥ó¥È¤·¤¿¾ì¹ç¤Ë¤â¥¸¥ã¡¼¥Ê¥ë¤Î¥ê - ¥×¥ì¥¤¤ò¹Ô¤¦ (½¾¤Ã¤Æ¥Ñ¡¼¥Æ¥£¥·¥ç¥ó¤Ë½ñ¤­¹þ¤ß¤ò¹Ô¤¦) - ¤³¤È¤ËÃí°Õ¤·¤Æ¤¯¤À¤µ¤¤¡£¥Þ¥¦¥ó¥È¥ª¥×¥·¥ç¥ó + ¥×¥ì¥¤¤ò¹Ô¤¦ (½¾¤Ã¤Æ¥Ñ¡¼¥Æ¥£¥·¥ç¥ó¤Ë½ñ¤­¹þ¤ß¤ò¹Ô¤¦) + ¤³¤È¤ËÃí°Õ¤·¤Æ¤¯¤À¤µ¤¤¡£¥Þ¥¦¥ó¥È¥ª¥×¥·¥ç¥ó "ro,noload" ¤ò¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤Ø¤Î½ñ¤­¹þ¤ß¤òÁ˻ߤ¹ ¤ë¤¿¤á¤Ë»ÈÍѤ¹¤ë¤³¤È¤¬¤Ç¤­¤Þ¤¹¡£ @@ -259,11 +259,6 @@ journal_async_commit ¤­¤Þ¤»¤ó¡£¤³¤ì¤Ë¤è¤ê¡¢ÆâÉôŪ¤Ë journal_checksum ¤¬ Í­¸ú¤Ë¤µ¤ì¤Þ¤¹¡£ -#journal=update Update the ext4 file system's journal to the current -# format. -journal=update ext4 ¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤Î¥¸¥ã¡¼¥Ê¥ë¤ò¸½ºß¤Î·Á¼°¤Ë¥¢¥Ã - ¥×¥Ç¡¼¥È¤·¤Þ¤¹¡£ - #journal_dev=devnum When the external journal device's major/minor numbers # have changed, this option allows the user to specify # the new journal location. The journal device is @@ -362,8 +357,8 @@ nobarrier # table readahead algorithm will pre-read into # the buffer cache. The default value is 32 blocks. inode_readahead_blks=n ¤³¤Î¥Á¥å¡¼¥Ë¥ó¥°¥Ñ¥é¥á¡¼¥¿¤Ï¡¢ext4 inode ¥Æ¡¼¥Ö¥ëÀèÆÉ - ¤ß¥¢¥ë¥´¥ê¥º¥à¤¬¥Ð¥Ã¥Õ¥¡¥­¥ã¥Ã¥·¥å¤ËÀèÆɤߤ¹¤ë¡¢inode - ¥Æ¡¼¥Ö¥ë¥Ö¥í¥Ã¥¯¤Î¿ô¤ÎºÇÂçÃͤòÀ©¸æ¤·¤Þ¤¹¡£´ûÄêÃÍ¤Ï 32 + ¤ß¥¢¥ë¥´¥ê¥º¥à¤¬¥Ð¥Ã¥Õ¥¡¥­¥ã¥Ã¥·¥å¤ËÀèÆɤߤ¹¤ë¡¢inode + ¥Æ¡¼¥Ö¥ë¥Ö¥í¥Ã¥¯¤Î¿ô¤ÎºÇÂçÃͤòÀ©¸æ¤·¤Þ¤¹¡£´ûÄêÃÍ¤Ï 32 ¥Ö¥í¥Ã¥¯¤Ç¤¹¡£ #nouser_xattr Disables Extended User Attributes. If you have extended @@ -373,8 +368,8 @@ inode_readahead_blks=n # page and http://acl.bestbits.at/ for more information # about extended attributes. nouser_xattr POSIX ³Èĥ°À­ ¤ò̵¸ú¤Ë¤·¤Þ¤¹¡£ - ¤â¤·¡¢³Èĥ°À­¥µ¥Ý¡¼¥È¤¬¥«¡¼¥Í¥ëÀßÄê - (CONFIG_EXT4_FS_XATTR) ¤ÇÍ­¸ú¤Ë¤Ê¤Ã¤Æ¤¤¤ë¾ì¹ç¡¢ACL + ¤â¤·¡¢³Èĥ°À­¥µ¥Ý¡¼¥È¤¬¥«¡¼¥Í¥ëÀßÄê + (CONFIG_EXT4_FS_XATTR) ¤ÇÍ­¸ú¤Ë¤Ê¤Ã¤Æ¤¤¤ë¾ì¹ç¡¢ACL ¤Ï¥Þ¥¦¥ó¥È»þ¤Ë¥Ç¥Õ¥©¥ë¥È¤ÇÍ­¸ú¤Ë¤Ê¤ê¤Þ¤¹¡£ POSIX ³Èĥ°À­¤Î¾ÜºÙ¤ò³Ø¤Ö¤Ë¤Ï¡¢attr(5) ¤Î¥Þ¥Ë¥å¥¢ ¥ë¥Ú¡¼¥¸¤È http://acl.bestbits.at ¤ò¸«¤Æ¤¯¤À¤µ¤¤¡£ @@ -386,7 +381,7 @@ nouser_xattr POSIX # page and http://acl.bestbits.at/ for more information # about acl. noacl POSIX ¥¢¥¯¥»¥¹À©¸æ¥ê¥¹¥È(POSIX ACL) ¥µ¥Ý¡¼¥È¤ò̵¸ú - ¤Ë¤·¤Þ¤¹¡£¤â¤·¡¢ACL ¥µ¥Ý¡¼¥È¤¬¥«¡¼¥Í¥ëÀßÄê + ¤Ë¤·¤Þ¤¹¡£¤â¤·¡¢ACL ¥µ¥Ý¡¼¥È¤¬¥«¡¼¥Í¥ëÀßÄê (CONFIG_EXT4_FS_POSIX_ACL) ¤ÇÍ­¸ú¤Ë¤Ê¤Ã¤Æ¤¤¤ë¾ì¹ç¡¢ ACL ¤Ï¥Þ¥¦¥ó¥È»þ¤Ë¥Ç¥Õ¥©¥ë¥È¤ÇÍ­¸ú¤Ë¤Ê¤ê¤Þ¤¹¡£ acl ¤Ë¤Ä¤¤¤Æ¤Î¾ÜºÙ¤Ï acl(5) ¤Î¥Þ¥Ë¥å¥¢¥ë¥Ú¡¼¥¸¤ä¡¢ @@ -440,7 +435,7 @@ bsdgroups nogrpid (*) ¥ª¥Ö¥¸¥§¥¯¥È¤ÎºîÀ®»þ¤Ë¡¢ºîÀ®Àè¥Ç¥£¥ì¥¯¥È¥ê¤Ë setgid ¥Ó sysvgroups ¥Ã¥È¤¬¥»¥Ã¥È¤µ¤ì¤Æ¤¤¤Ê¤¤¾ì¹ç¡¢ºîÀ®¥×¥í¥»¥¹¤ÈƱ¤¸¥°¥ë¡¼¥× ID ¤òÍ¿¤¨¤Þ¤¹¡£ºîÀ®Àè¥Ç¥£¥ì¥¯¥È¥ê¤Ë setgid ¥Ó¥Ã¥È¤¬¥»¥Ã - ¥È¤µ¤ì¤Æ¤¤¤¿¾ì¹ç¤Ë¤Ï¡¢ºîÀ®Àè¥Ç¥£¥ì¥¯¥È¥ê¤Î¥°¥ë¡¼¥× + ¥È¤µ¤ì¤Æ¤¤¤¿¾ì¹ç¤Ë¤Ï¡¢ºîÀ®Àè¥Ç¥£¥ì¥¯¥È¥ê¤Î¥°¥ë¡¼¥× ID ¤¬°ú¤­·Ñ¤¬¤ì¡¢¹¹¤ËºîÀ®¤µ¤ì¤¿¤Î¤¬¥Ç¥£¥ì¥¯¥È¥ê¤Ç¤¢ ¤Ã¤¿¾ì¹ç¤Ë¤Ï setgid ¥Ó¥Ã¥È¤â°ú¤­·Ñ¤¬¤ì¤Þ¤¹¡£ @@ -535,11 +530,11 @@ max_batch_time=usec ext4 ¤ë»þ´Ö (Ê¿¶Ñ»þ´Ö) ¤ò¬Äꤹ¤ë¤³¤È¤Ë¤è¤ê¡¢¥Ç¥£¥¹¥¯Â®ÅÙ¤Ë ºÇŬ²½¤¹¤ë¤è¤¦À߷פµ¤ì¤¿¤â¤Î¤Ç¤¹¡£¤³¤³¤Ç¾åµ­¤Î¡Ö¥³¥ß¥Ã ¥È´°Î»¤ËÍפ¹¤ë»þ´Ö¡×¤ò ¡ÉCommit time" ¤È¸Æ¤Ö¤³¤È¤Ë¤·¤Þ - ¤¹¡£¤â¤·¡¢¥È¥é¥ó¥¶¥¯¥·¥ç¥ó¤ò¼Â¹Ô¤·¤Æ¤¤¤ë»þ´Ö¤¬ Commit + ¤¹¡£¤â¤·¡¢¥È¥é¥ó¥¶¥¯¥·¥ç¥ó¤ò¼Â¹Ô¤·¤Æ¤¤¤ë»þ´Ö¤¬ Commit time ¤è¤ê¾®¤µ¤¤¤Ê¤é¤Ð¡¢ext4 ¤Ï Commit time ¤À¤±¥¹¥ê¡¼ ¥×¤·¤Æ¾¤Î½èÍý¤¬¥È¥é¥ó¥¶¥¯¥·¥ç¥ó¤Ë¹çή¤Ç¤­¤ë¤«¤É¤¦¤«¤ò Ä´¤Ù¤Þ¤¹¡£¤³¤Î Commit time ¤Ï max_batch_time ¤Ë¤è¤ê - ¾å¸Â¤¬»ØÄꤵ¤ì¤Þ¤¹¡£max_batch_time ¤Îɸ½àÃÍ¤Ï + ¾å¸Â¤¬»ØÄꤵ¤ì¤Þ¤¹¡£max_batch_time ¤Îɸ½àÃÍ¤Ï 15000us (15ms) ¤Ç¤¹¡£max_batch_time ¤ò 0 ¤È»ØÄꤹ¤ë ¤³¤È¤Ç¡¢¤³¤ÎºÇŬ²½¤ò´°Á´¤Ë̵¸ú²½¤Ç¤­¤Þ¤¹¡£ @@ -550,23 +545,23 @@ max_batch_time=usec ext4 # multi-threaded, synchronous workloads on very # fast disks, at the cost of increasing latency. min_batch_time=usec ¤³¤Î¥Ñ¥é¥á¡¼¥¿¤Ï commit time (¾åµ­»²¾È) ¤¬¡¢¾¯¤Ê¤¯¤È¤â - min_batch_time °Ê¾å¤Ç¤¢¤ë¤³¤È¤ò»ØÄꤷ¤Þ¤¹¡£É¸½àÃÍ¤Ï 0 + min_batch_time °Ê¾å¤Ç¤¢¤ë¤³¤È¤ò»ØÄꤷ¤Þ¤¹¡£É¸½àÃÍ¤Ï 0 ms ¤Ç¤¹¡£¤³¤Î¥Ñ¥é¥á¡¼¥¿¤òÁý¤ä¤·¤¿¾ì¹ç¡¢¥Þ¥ë¥Á¥¹¥ì¥Ã¥É¤Ç Ʊ´ü¤ò»È¤¦½èÍýÉé²Ù¤ò¹â®¤Ê¥Ç¥£¥¹¥¯¤Ç¼Â¹Ô¤·¤Æ¤¤¤ë¾ì¹ç¡¢¥ì ¥¤¥Æ¥ó¥·¥£¤ÎÁý²Ã¤Î¥³¥¹¥È¤òÂå½þ¤Ë¥¹¥ë¡¼¥×¥Ã¥È¤¬²þÁ±¤·¤Þ¤¹¡£ #journal_ioprio=prio The I/O priority (from 0 to 7, where 0 is the -# highest priorty) which should be used for I/O +# highest priority) which should be used for I/O # operations submitted by kjournald2 during a # commit operation. This defaults to 3, which is # a slightly higher priority than the default I/O # priority. journal_ioprio=prio kjournald2 ¤¬¡¢¥³¥ß¥Ã¥È½èÍýÃæ¤Ëȯ¹Ô¤¹¤ë I/O ½èÍý¤ÇÍѤ¤ ¤ë I/O ¥×¥é¥¤¥ª¥ê¥Æ¥£ (0 ¤«¤é 7 ¤Ç¡¢0 ¤¬ºÇ¹â¤Î¥×¥é¥¤¥ª - ¥ê¥Æ¥£¤Ç¤¹) ¤ò»ØÄꤷ¤Þ¤¹¡£É¸½àÃÍ¤Ï 3 ¤Ç¡¢¤³¤ì¤ÏÄ̾ï¤Î + ¥ê¥Æ¥£¤Ç¤¹) ¤ò»ØÄꤷ¤Þ¤¹¡£É¸½àÃÍ¤Ï 3 ¤Ç¡¢¤³¤ì¤ÏÄ̾ï¤Î I/O ¥×¥é¥¤¥ª¥ê¥Æ¥£¤è¤ê¾¯¤·¹â¤¯¤Ê¤Ã¤Æ¤¤¤Þ¤¹¡£ -#auto_da_alloc(*) Many broken applications don't use fsync() when +#auto_da_alloc(*) Many broken applications don't use fsync() when #noauto_da_alloc replacing existing files via patterns such as # fd = open("foo.new")/write(fd,..)/close(fd)/ # rename("foo.new", "foo"), or worse yet, @@ -585,8 +580,8 @@ journal_ioprio=prio kjournald2 # blocks are forced to disk. auto_da_alloc(*) ¿¤¯¤Î²õ¤ì¤¿¥¢¥×¥ê¥±¡¼¥·¥ç¥ó¤Ï¡¢fd = open("foo.new")/ noauto_da_alloc write(fd,..)/close(fd)/rename("foo.new", "foo") ¤Ê - ¤É¤Î¥Ñ¥¿¡¼¥ó¡¢¤¢¤ë¤¤¤Ï¤½¤ì¤è¤ê¼Ù°­¤Ê - fd = open("foo", O_TRUNC)/write(fd,..)/close(fd) + ¤É¤Î¥Ñ¥¿¡¼¥ó¡¢¤¢¤ë¤¤¤Ï¤½¤ì¤è¤ê¼Ù°­¤Ê + fd = open("foo", O_TRUNC)/write(fd,..)/close(fd) ¥Ñ¥¿¡¼¥ó¤Ç¡¢fsync() ¤ò»È¤ï¤Ê¤¤¤Ç´û¸¤Î¥Õ¥¡¥¤¥ë¤òÆþ¤ì Âؤ¨¤Þ¤¹¡£auto_da_alloc ¤¬Í­¸ú¤Ê¾ì¹ç¡¢ext4 ¤Ï¤³¤Î¥ê ¥Í¡¼¥à¤Ë¤è¤ë¥Õ¥¡¥¤¥ë¤ÎÆþ¤ìÂؤ¨¤È truncate ¤Ë¤è¤ë¥Õ¥¡ @@ -615,7 +610,7 @@ noinit_itable #init_itable=n The lazy itable init code will wait n times the # number of milliseconds it took to zero out the # previous block group's inode table. This -# minimizes the impact on the systme performance +# minimizes the impact on the system performance # while file system's inode table is being initialized. init_itable=n itable ¤ÎÃÙ±ä½é´ü²½¥³¡¼¥É¤Ï¡¢Á°¤Î inode ¥Æ¡¼¥Ö¥ë¥Ö¥í ¥Ã¥¯¤Î 0 ¥¯¥ê¥¢¸å¡¢n ¥ß¥êÉÃÂԤäƼ¡¤Î½é´ü²½¤ò¼Â¹Ô¤·¤Þ @@ -641,16 +636,6 @@ nouid32 32-bit UID 16 bit ÃͤΤߤò½ñ¤­¹þ¤ß¡¢ÍøÍѤ¹¤ë¸Å¤¤¥«¡¼¥Í¥ë¤È¤Î¸ß ´¹À­¤Î¤¿¤á¤Î¤â¤Î¤Ç¤¹¡£ -#resize Allows to resize filesystem to the end of the last -# existing block group, further resize has to be done -# with resize2fs either online, or offline. It can be -# used only with conjunction with remount. -resize ºÇ½ª¤Î»ÈÍѺѤߤΥ֥í¥Ã¥¯¥°¥ë¡¼¥×¤Ø¤Î¥ê¥µ¥¤¥º¤òµö¤· - ¤Þ¤¹¡£¤³¤ì°Ê¾å¤Î¥ê¥µ¥¤¥º¤Ï¡¢¥ª¥ó¥é¥¤¥ó¤Þ¤¿¤Ï¥ª¥Õ¥é - ¥¤¥ó¤Ç resize2fs¤òÍѤ¤¤Æ¹Ô¤¦É¬Íפ¬¤¢¤ê¤Þ¤¹¡£¥ê¥µ¥¤ - ¥º¸å¤Î¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤Ï remount ¸å¤ËÍøÍѲÄǽ¤Ë¤Ê¤ê - ¤Þ¤¹¡£ - #block_validity This options allows to enables/disables the in-kernel #noblock_validity facility for tracking filesystem metadata blocks # within internal data structures. This allows multi- @@ -684,7 +669,7 @@ dioread_lock ext4 dioread_nolock ¤â¤· dioread_nolock ¥ª¥×¥·¥ç¥ó¤¬»ØÄꤵ¤ì¤Æ¤¤¤ë¾ì¹ç ¤Ï¡¢ext4 ¤Ï¥Ð¥Ã¥Õ¥¡¥é¥¤¥ÈÁ°¤Ë̤½é´ü²½¾õÂ֤Υ¨¥¯¥¹¥Æ ¥ó¥È¤ò³ä¤êÅö¤Æ¡¢IO ½ªÎ»¸å¤Ë¥¨¥¯¥¹¥Æ¥ó¥È¤ò½é´ü²½¾õÂÖ - ¤ËÊѹ¹¤·¤Þ¤¹¡£¤³¤Î¼ê½ç¤Ë¤è¤ê¡¢ext4 ¤Ç inode mutex + ¤ËÊѹ¹¤·¤Þ¤¹¡£¤³¤Î¼ê½ç¤Ë¤è¤ê¡¢ext4 ¤Ç inode mutex ¤ò»È¤ï¤Ê¤¤¤ÇºÑ¤à¤è¤¦¤Ë¤Ê¤ë¤¿¤á¡¢¹â®¤Ê¥¹¥È¥ì¡¼¥¸¤ò »È¤Ã¤¿¾ì¹ç¤Î¥·¥¹¥Æ¥à¤Î³ÈÄ¥À­¤¬¸þ¾å¤·¤Þ¤¹¡£¤¿¤À¤·¡¢ ¤³¤Îµ¡Ç½¤Ï¥Ç¡¼¥¿¥¸¥ã¡¼¥Ê¥ê¥ó¥°¤È¶¦¤Ë¤Ï»È¤¨¤º¡¢¥Ç¡¼ @@ -725,7 +710,7 @@ data=writeback #groups metadata information related to data changes with the data blocks into a #single unit called a transaction. When it's time to write the new metadata #out to disk, the associated data blocks are written first. In general, -#this mode performs slightly slower than writeback but significantly faster +#this mode performs slightly slower than writeback but significantly faster #than journal mode. * ¥ª¡¼¥À¡¼¥É¥â¡¼¥É (ordered mode) data=ordered ¥â¡¼¥É¤Î¤È¤­¡¢ext4 ¤Ï¸ø¼°¤Ë¤Ï¥á¥¿¥Ç¡¼¥¿¤Î¤ß¤ò¥¸¥ã¡¼¥Ê¥ë¤·¤Þ¤¹ @@ -749,7 +734,7 @@ data=journal ¤­¤³¤Þ¤ì¤Þ¤¹¡£¥¯¥é¥Ã¥·¥å¤ÎºÝ¡¢¥¸¥ã¡¼¥Ê¥ë¤Ï¥ê¥×¥ì¥¤¤µ¤ì¡¢¥Ç¡¼¥¿¤È¥á¥¿¥Ç¡¼¥¿ ¤ÎξÊý¤ÏÌ·½â¤Î̵¤¤¾õÂ֤˲óÉü¤µ¤ì¤Þ¤¹¡£¤³¤Î¥â¡¼¥É¤ÏÄ̾ï¤Ï¤â¤Ã¤È¤âÃÙ¤¤¤â¤Î¤Ç ¤¹¤¬¡¢¥Ç¥£¥¹¥¯¤Ø¤Î¥Ç¡¼¥¿¤ÎÆɤߤÀ¤·¤È½ñ¤­¹þ¤ß¤òƱ»þ¤Ë¹Ô¤¦É¬Íפ¬¤¢¤ë»þ¤Ï¡¢Â¾ -¤Î¥â¡¼¥É¤è¤ê¹âÀ­Ç½¤Ç¤¹¡£¤³¤Î¥â¡¼¥É¤òÍ­¸ú¤Ë¤·¤¿¾ì¹ç¡¢Ãٱ䥢¥í¥±¡¼¥·¥ç¥ó¤È +¤Î¥â¡¼¥É¤è¤ê¹âÀ­Ç½¤Ç¤¹¡£¤³¤Î¥â¡¼¥É¤òÍ­¸ú¤Ë¤·¤¿¾ì¹ç¡¢Ãٱ䥢¥í¥±¡¼¥·¥ç¥ó¤È O_DIRECT ¥µ¥Ý¡¼¥È¤Ï̵¸ú¤Ë¤Ê¤ê¤Þ¤¹¡£ @@ -765,7 +750,7 @@ O_DIRECT #in table below. ¥Þ¥¦¥ó¥È¤µ¤ì¤Æ¤¤¤ë ext4 ¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤Î¾ðÊó¤Ï /proc/fs/ext4 ¤«¤é¼èÆÀ¤Ç ¤­¤Þ¤¹¡£¥Þ¥¦¥ó¥È¤µ¤ì¤Æ¤¤¤ë¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤Î³Æ¡¹¤ËÂбþ¤·¤¿¡¢¥Ç¥Ð¥¤¥¹Ì¾¤ò¸µ -¤Ë¤·¤¿Ì¾¾Î¤Î¥Ç¥£¥ì¥¯¥È¥ê¤¬ /proc/fs/ext4 °Ê²¼¤ËºîÀ®¤µ¤ì¤Þ¤¹ (Î㤨¤Ð +¤Ë¤·¤¿Ì¾¾Î¤Î¥Ç¥£¥ì¥¯¥È¥ê¤¬ /proc/fs/ext4 °Ê²¼¤ËºîÀ®¤µ¤ì¤Þ¤¹ (Î㤨¤Ð /proc/fs/ext4/hdc ¤ä /proc/fs/ext4/dm-0)¡£³Æ¥Ç¥Ð¥¤¥¹¤´¤È¤Î¥Ç¥£¥ì¥¯¥È¥êÆâ¤Î ¥Õ¥¡¥¤¥ë¤Ï°Ê²¼¤Î¥Æ¡¼¥Ö¥ë¤Î¤È¤ª¤ê¤Ç¤¹¡£ @@ -791,7 +776,7 @@ O_DIRECT #in table below. ¥Þ¥¦¥ó¥È¤µ¤ì¤¿ ext4 ¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤Î¾ðÊó¤Ï /sys/fs/ext4 ¤«¤é¼èÆÀ¤Ç¤­¤Þ¤¹¡£ ¥Þ¥¦¥ó¥È¤µ¤ì¤Æ¤¤¤ë¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤Î³Æ¡¹¤ËÂбþ¤·¤Æ¡¢¥Ç¥Ð¥¤¥¹Ì¾¤ò¸µ¤Ë¤·¤¿Ì¾ -¾Î¤Î¥Ç¥£¥ì¥¯¥È¥ê¤¬ /sys/fs/ext4 °Ê²¼¤ËºîÀ®¤µ¤ì¤Þ¤¹ (Î㤨¤Ð +¾Î¤Î¥Ç¥£¥ì¥¯¥È¥ê¤¬ /sys/fs/ext4 °Ê²¼¤ËºîÀ®¤µ¤ì¤Þ¤¹ (Î㤨¤Ð /sys/fs/ext4/hdc ¤ä /sys/fs/ext4/dm-0)¡£³Æ¥Ç¥Ð¥¤¥¹¤´¤È¤Î¥Ç¥£¥ì¥¯¥È¥êÆâ¤Î ¥Õ¥¡¥¤¥ë¤Ï°Ê²¼¤Î¥Æ¡¼¥Ö¥ë¤Î¤È¤ª¤ê¤Ç¤¹¡£ @@ -946,8 +931,8 @@ ext4 # particularly useful for network filesystems. The # '_OLD' version of this ioctl is an alias for # FS_IOC_GETVERSION. - ³Æ inode ¤Ë³ÊǼ¤µ¤ì¤Æ¤¤¤ë inode ¤Î - i_generation ÈÖ¹æ¤ò¼èÆÀ¤·¤Þ¤¹¡£i_generation + ³Æ inode ¤Ë³ÊǼ¤µ¤ì¤Æ¤¤¤ë inode ¤Î + i_generation ÈÖ¹æ¤ò¼èÆÀ¤·¤Þ¤¹¡£i_generation ÈÖ¹æ¤ÏÄ̾￷¤·¤¤ inode ¤¬ºîÀ®¤µ¤ì¤ë¾ì¹ç¤Ë¤Î¤ß Êѹ¹¤µ¤ì¡¢¥Í¥Ã¥È¥ï¡¼¥¯¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤ÇÆäËÍ­ÍѤǤ¹¡£ _OLD ¤ÎÉÕ¤¯ÈǤΠioctl ¤Ï FS_IOC_GETVERSION ¤Î @@ -958,7 +943,7 @@ ext4 # Set the inode i_generation number stored for # each inode. The '_OLD' version of this ioctl # is an alias for FS_IOC_SETVERSION. - ³Æ inode ¤Ë³ÊǼ¤µ¤ì¤Æ¤¤¤ë inode ¤Î + ³Æ inode ¤Ë³ÊǼ¤µ¤ì¤Æ¤¤¤ë inode ¤Î i_generation ÈÖ¹æ¤òÀßÄꤷ¤Þ¤¹¡£ _OLD ¤ÎÉÕ¤¯ÈǤΠioctl ¤Ï FS_IOC_SETVERSION ¤Î ÊÌ̾¤Ç¤¹¡£ @@ -1011,7 +996,7 @@ ext4 ¿ô¤È¤·¤ÆÅϤµ¤ì¤ë ext4_new_group_input ¹½Â¤ÂÎ¤Ë µ­ºÜ¤µ¤ì¤Þ¤¹¡£ ¤³¤Îµ¡Ç½¤ÏºÇ½ª¤Î»ÈÍѺѤߤΥ֥í¥Ã¥¯¥°¥ë¡¼¥×¤Ø¤Î - ¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤Î¥ª¥ó¥é¥¤¥ó¥ê¥µ¥¤¥º¤ò¹Ô¤¦ + ¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤Î¥ª¥ó¥é¥¤¥ó¥ê¥µ¥¤¥º¤ò¹Ô¤¦ EXT4_IOC_GROUP_EXTEND µ¡Ç½¤ÈÁȤ߹ç¤ï¤»¤Æ»È¤¦¤È ÊØÍø¤Ç¤¹¡£¤³¤Î 2 ¤Ä¤Î ioctl ¤Ï¥æ¡¼¥¶¶õ´Ö¥ª¥ó¥é ¥¤¥ó¥ê¥µ¥¤¥º¥Ä¡¼¥ë (¤Ä¤Þ¤ê resize2fs) ¤ÇÁȤ߹ç @@ -1033,9 +1018,9 @@ ext4 ¤³¤ì¤Ï¡¢ext3 ¤Î´ÖÀÜ¥Ö¥í¥Ã¥¯¥Þ¥Ã¥×¤µ¤ì¤¿ inode ¤ò ext4 ¤Î¥¨¥¯¥¹¥Æ¥ó¥È¥Þ¥Ã¥×¤µ¤ì¤¿ inode ¤Ë¡¢ ¸µ¤Î inode ¤Î´ÖÀÜ¥Ö¥í¥Ã¥¯¥Þ¥Ã¥×¤ò¼ê·«¤Ã¤ÆÎÙÀÜ - ¥Ö¥í¥Ã¥¯ÈϰϤËÊÑ´¹¤·¤Æ¹¹¤Ë°ì»þ inode ¤Î ext4 + ¥Ö¥í¥Ã¥¯ÈϰϤËÊÑ´¹¤·¤Æ¹¹¤Ë°ì»þ inode ¤Î ext4 ¥¨¥¯¥¹¥Æ¥ó¥È¤ËÊÑ´¹¡¢¤½¤Î¤¢¤È inode ¤ò¸ò´¹¤¹¤ë - ¤³¤È¤Ë¤è¤êÊÑ´¹¤·¤Æ°Ü¹Ô¤·¤Þ¤¹¡£¤³¤Îµ¡Ç½¤Ï ext3 + ¤³¤È¤Ë¤è¤êÊÑ´¹¤·¤Æ°Ü¹Ô¤·¤Þ¤¹¡£¤³¤Îµ¡Ç½¤Ï ext3 ¤«¤é ext4 ¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤Ø¤Î°Ü¹Ô»þ¤ËÍøÍѲÄǽ ¤Ç¤¹¤¬¡¢ext4 ¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤ò¿·µ¬¤Ëºî¤Ã¤Æ¤½ ¤³¤Ë¥Ð¥Ã¥¯¥¢¥Ã¥×¤«¤é¥Ç¡¼¥¿¤ò¥³¥Ô¡¼¤¹¤ëÊý¤¬¤è¤ê @@ -1051,7 +1036,7 @@ ext4 # not necessary and has been done this way only # for sake of simplicity. EXT4_IOC_ALLOC_DA_BLKS ÃÙ±ä³ä¤êÅö¤ÆÂоݤΥ֥í¥Ã¥¯¤ò¶¯À©Åª¤ËÁ´¤Æ³ä¤êÅö - ¤Æ¤ë¤³¤È¤Ë¤è¤ê¡¢¥¢¥×¥ê¥±¡¼¥·¥ç¥ó¤«¤é¸«¤Æ ext3 + ¤Æ¤ë¤³¤È¤Ë¤è¤ê¡¢¥¢¥×¥ê¥±¡¼¥·¥ç¥ó¤«¤é¸«¤Æ ext3 ¤ÎµóÆ°¤ÈƱ¤¸¤Ë¤Ê¤ë¤è¤¦¤Ë¤·¤Þ¤¹¡£¤³¤Îµ¡Ç½¤Ë¤è¤ê ¸½ºß¤Î¼ÂÁõ¤Ç¤Ï¥Ç¡¼¥¿¥Ö¥í¥Ã¥¯¤Î½ñ¤­¹þ¤ß¤¬»Ï¤Þ¤ë ¤³¤È¤ËÃí°Õ¤·¤Æ¤¯¤À¤µ¤¤¡£¤¿¤À¤·¡¢¤³¤Î¿¶¤ëÉñ¤¤¤Ï diff --git a/docs/kernel-docs-2.6/filesystems/ext4.txt.info b/docs/kernel-docs-2.6/filesystems/ext4.txt.info index f7a9f91..022b761 100644 --- a/docs/kernel-docs-2.6/filesystems/ext4.txt.info +++ b/docs/kernel-docs-2.6/filesystems/ext4.txt.info @@ -2,8 +2,8 @@ ATRB: MISC TITL: Ext4 ¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à CONT: Ext4 ¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤Î²òÀâ NAME: filesystems/ext4.txt -JDAT: 2012/05/11 -BVER: 3.3 +JDAT: 2012/06/10 +BVER: 3.4.1 AUTH: unknown TRNS: Seiji Kaneko < skaneko at mbn dot or dot jp > ITEM: etc diff --git a/www/news.m4 b/www/news.m4 index 4c9223a..b995588 100644 --- a/www/news.m4 +++ b/www/news.m4 @@ -45,6 +45,9 @@ m4_define(`_NEW_DOC',` ')
+_UPD_DOC(kernel-docs-2.6/filesystems/ext4.txt.html,2012/06/11, + `kernel-3.4.1 ÉÕ° filesystems/ext4.txt ¤ÎÆüËܸìÌõ') + _UPD_DOC(kernel-docs-2.6/filesystems/ext4.txt.html,2012/05/12, `kernel-3.3 ÉÕ° filesystems/ext4.txt ¤ÎÆüËܸìÌõ') -- 2.11.0