From: Jan Kara Subject: [PATCH 12/19] libext2fs: Bump default number of reserved inodes to 64 Date: Fri, 7 Aug 2015 12:51:22 +0200 Message-ID: <1438944689-24562-13-git-send-email-jack@suse.com> References: <1438944689-24562-1-git-send-email-jack@suse.com> Cc: Ted Tso , "Darrick J. Wong" , Jan Kara To: linux-ext4@vger.kernel.org Return-path: Received: from mx2.suse.de ([195.135.220.15]:39162 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751481AbbHGKvr (ORCPT ); Fri, 7 Aug 2015 06:51:47 -0400 In-Reply-To: <1438944689-24562-1-git-send-email-jack@suse.com> Sender: linux-ext4-owner@vger.kernel.org List-ID: From: Jan Kara We ran out of reserved inodes so bump the default number of reserved inodes to 64 to get some breathing space. Otherwise we have to do a full fs scan when increasing number of reserved inodes when some feature needing another reserved inode is enabled. This consumes 13.5 KB on a filesystem which is negligible these days. Signed-off-by: Jan Kara --- lib/ext2fs/initialize.c | 2 +- misc/mke2fs.8.in | 8 ++++---- misc/mke2fs.conf.5.in | 7 ++++--- 3 files changed, 9 insertions(+), 8 deletions(-) diff --git a/lib/ext2fs/initialize.c b/lib/ext2fs/initialize.c index 75fbf8ee0061..0ecf4606ce48 100644 --- a/lib/ext2fs/initialize.c +++ b/lib/ext2fs/initialize.c @@ -186,7 +186,7 @@ errcode_t ext2fs_initialize(const char *name, int flags, set_field(s_rev_level, EXT2_GOOD_OLD_REV); if (super->s_rev_level >= EXT2_DYNAMIC_REV) { - set_field(s_first_ino, EXT2_GOOD_OLD_FIRST_INO); + set_field(s_first_ino, 64); set_field(s_inode_size, EXT2_GOOD_OLD_INODE_SIZE); if (super->s_inode_size >= sizeof(struct ext2_inode_large)) { int extra_isize = sizeof(struct ext2_inode_large) - diff --git a/misc/mke2fs.8.in b/misc/mke2fs.8.in index 520a07185f9f..6eef1d97bfbf 100644 --- a/misc/mke2fs.8.in +++ b/misc/mke2fs.8.in @@ -386,10 +386,10 @@ Do not attempt to discard blocks at mkfs time. @QUOTA_MAN_COMMENT@behavior is to initialize both user and group quotas. .TP .BI reserved_inodes= number -Specify the number of inodes reserved for system files. This number must be -at least 10. Currently 10 is enough but future features may require additional -reserved inodes. Reserving more inodes after file system is created requires -full file system scan so it can take a long time. +Specify the number of inodes reserved for system files. This number must be at +least 10, default is 64. Currently 10 is enough but future features may require +additional reserved inodes. Reserving more inodes after file system is created +requires full file system scan so it can take a long time. .RE .TP .BI \-f " fragment-size" diff --git a/misc/mke2fs.conf.5.in b/misc/mke2fs.conf.5.in index 06ca9e4eabc4..b35767bfedf2 100644 --- a/misc/mke2fs.conf.5.in +++ b/misc/mke2fs.conf.5.in @@ -197,9 +197,10 @@ reserved ratio. This value can be a floating point number. .TP .I reserved_inodes This relation specifies the default number of inodes reserved for system files. -The number must be at least 10. Currently 10 is enough but future features may -require additional reserved inodes. Reserving more inodes after file system is -created requires full file system scan so it can take a long time. +The number must be at least 10, default is 64. Currently 10 is enough but +future features may require additional reserved inodes. Reserving more inodes +after file system is created requires full file system scan so it can take a +long time. .TP .I undo_dir This relation specifies the directory where the undo file should be -- 2.1.4