From 955234755ce4a2c33cfc558912aa8f2148cc1fc6 Mon Sep 17 00:00:00 2001 From: Paul Wise Date: Sat, 1 Aug 2009 21:30:31 +0900 Subject: vfat: change the default from shortname=lower to shortname=mixed Because, with "shortname=lower", copying one FAT filesystem tree to another FAT filesystem tree using Linux results in semantically different filesystems. (E.g.: Filenames which were once "all uppercase" are now "all lowercase"). So, this changes the default of "shortname=lower" to "shortname=mixed". Signed-off-by: Paul Wise [change fat_show_options()] Signed-off-by: OGAWA Hirofumi --- Documentation/filesystems/vfat.txt | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'Documentation/filesystems') diff --git a/Documentation/filesystems/vfat.txt b/Documentation/filesystems/vfat.txt index b58b84b50fa..eed520fd0c8 100644 --- a/Documentation/filesystems/vfat.txt +++ b/Documentation/filesystems/vfat.txt @@ -102,7 +102,7 @@ shortname=lower|win95|winnt|mixed winnt: emulate the Windows NT rule for display/create. mixed: emulate the Windows NT rule for display, emulate the Windows 95 rule for create. - Default setting is `lower'. + Default setting is `mixed'. tz=UTC -- Interpret timestamps as UTC rather than local time. This option disables the conversion of timestamps -- cgit v1.2.3 From 8365388827663bd6fb773e3623ed9023c0f82b1d Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Tue, 29 Sep 2009 15:59:34 -0400 Subject: ext4: Update documentation about quota mount options Signed-off-by: Jan Kara Signed-off-by: "Theodore Ts'o" --- Documentation/filesystems/ext4.txt | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-) (limited to 'Documentation/filesystems') diff --git a/Documentation/filesystems/ext4.txt b/Documentation/filesystems/ext4.txt index 18b5ec8cea4..bf4f4b7e11b 100644 --- a/Documentation/filesystems/ext4.txt +++ b/Documentation/filesystems/ext4.txt @@ -282,9 +282,16 @@ stripe=n Number of filesystem blocks that mballoc will try to use for allocation size and alignment. For RAID5/6 systems this should be the number of data disks * RAID chunk size in file system blocks. -delalloc (*) Deferring block allocation until write-out time. -nodelalloc Disable delayed allocation. Blocks are allocation - when data is copied from user to page cache. + +delalloc (*) Defer block allocation until just before ext4 + writes out the block(s) in question. This + allows ext4 to better allocation decisions + more efficiently. +nodelalloc Disable delayed allocation. Blocks are allocated + when the data is copied from userspace to the + page cache, either via the write(2) system call + or when an mmap'ed page which was previously + unallocated is written for the first time. max_batch_time=usec Maximum amount of time ext4 should wait for additional filesystem operations to be batch -- cgit v1.2.3 From 296c355cd6443d89fa251885a8d78778fe111dc4 Mon Sep 17 00:00:00 2001 From: Theodore Ts'o Date: Wed, 30 Sep 2009 00:32:42 -0400 Subject: ext4: Use tracepoints for mb_history trace file The /proc/fs/ext4//mb_history was maintained manually, and had a number of problems: it required a largish amount of memory to be allocated for each ext4 filesystem, and the s_mb_history_lock introduced a CPU contention problem. By ripping out the mb_history code and replacing it with ftrace tracepoints, and we get more functionality: timestamps, event filtering, the ability to correlate mballoc history with other ext4 tracepoints, etc. Signed-off-by: "Theodore Ts'o" --- Documentation/filesystems/proc.txt | 1 - 1 file changed, 1 deletion(-) (limited to 'Documentation/filesystems') diff --git a/Documentation/filesystems/proc.txt b/Documentation/filesystems/proc.txt index b5aee7838a0..2c48f945546 100644 --- a/Documentation/filesystems/proc.txt +++ b/Documentation/filesystems/proc.txt @@ -1113,7 +1113,6 @@ Table 1-12: Files in /proc/fs/ext4/ .............................................................................. File Content mb_groups details of multiblock allocator buddy cache of free blocks - mb_history multiblock allocation history .............................................................................. -- cgit v1.2.3 From 6dbce5218298c0c77a740b3ffe97cb8c304e1710 Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Thu, 17 Sep 2009 17:37:12 +0200 Subject: ext3: Update documentation about ext3 quota mount options Signed-off-by: Jan Kara --- Documentation/filesystems/ext3.txt | 16 ++++++++++++---- 1 file changed, 12 insertions(+), 4 deletions(-) (limited to 'Documentation/filesystems') diff --git a/Documentation/filesystems/ext3.txt b/Documentation/filesystems/ext3.txt index 570f9bd9be2..05d5cf1d743 100644 --- a/Documentation/filesystems/ext3.txt +++ b/Documentation/filesystems/ext3.txt @@ -123,10 +123,18 @@ resuid=n The user ID which may use the reserved blocks. sb=n Use alternate superblock at this location. -quota -noquota -grpquota -usrquota +quota These options are ignored by the filesystem. They +noquota are used only by quota tools to recognize volumes +grpquota where quota should be turned on. See documentation +usrquota in the quota-tools package for more details + (http://sourceforge.net/projects/linuxquota). + +jqfmt= These options tell filesystem details about quota +usrjquota= so that quota information can be properly updated +grpjquota= during journal replay. They replace the above + quota options. See documentation in the quota-tools + package for more details + (http://sourceforge.net/projects/linuxquota). bh (*) ext3 associates buffer heads to data pages to nobh (a) cache disk block mapping information -- cgit v1.2.3