diff options
Diffstat (limited to 'Documentation/filesystems')
-rw-r--r-- | Documentation/filesystems/ext3.txt | 16 | ||||
-rw-r--r-- | Documentation/filesystems/ext4.txt | 21 | ||||
-rw-r--r-- | Documentation/filesystems/proc.txt | 1 | ||||
-rw-r--r-- | Documentation/filesystems/vfat.txt | 2 |
4 files changed, 30 insertions, 10 deletions
diff --git a/Documentation/filesystems/ext3.txt b/Documentation/filesystems/ext3.txt index 570f9bd9be2b..05d5cf1d743f 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. | |||
123 | 123 | ||
124 | sb=n Use alternate superblock at this location. | 124 | sb=n Use alternate superblock at this location. |
125 | 125 | ||
126 | quota | 126 | quota These options are ignored by the filesystem. They |
127 | noquota | 127 | noquota are used only by quota tools to recognize volumes |
128 | grpquota | 128 | grpquota where quota should be turned on. See documentation |
129 | usrquota | 129 | usrquota in the quota-tools package for more details |
130 | (http://sourceforge.net/projects/linuxquota). | ||
131 | |||
132 | jqfmt=<quota type> These options tell filesystem details about quota | ||
133 | usrjquota=<file> so that quota information can be properly updated | ||
134 | grpjquota=<file> during journal replay. They replace the above | ||
135 | quota options. See documentation in the quota-tools | ||
136 | package for more details | ||
137 | (http://sourceforge.net/projects/linuxquota). | ||
130 | 138 | ||
131 | bh (*) ext3 associates buffer heads to data pages to | 139 | bh (*) ext3 associates buffer heads to data pages to |
132 | nobh (a) cache disk block mapping information | 140 | nobh (a) cache disk block mapping information |
diff --git a/Documentation/filesystems/ext4.txt b/Documentation/filesystems/ext4.txt index 18b5ec8cea45..6d94e0696f8c 100644 --- a/Documentation/filesystems/ext4.txt +++ b/Documentation/filesystems/ext4.txt | |||
@@ -134,9 +134,15 @@ ro Mount filesystem read only. Note that ext4 will | |||
134 | mount options "ro,noload" can be used to prevent | 134 | mount options "ro,noload" can be used to prevent |
135 | writes to the filesystem. | 135 | writes to the filesystem. |
136 | 136 | ||
137 | journal_checksum Enable checksumming of the journal transactions. | ||
138 | This will allow the recovery code in e2fsck and the | ||
139 | kernel to detect corruption in the kernel. It is a | ||
140 | compatible change and will be ignored by older kernels. | ||
141 | |||
137 | journal_async_commit Commit block can be written to disk without waiting | 142 | journal_async_commit Commit block can be written to disk without waiting |
138 | for descriptor blocks. If enabled older kernels cannot | 143 | for descriptor blocks. If enabled older kernels cannot |
139 | mount the device. | 144 | mount the device. This will enable 'journal_checksum' |
145 | internally. | ||
140 | 146 | ||
141 | journal=update Update the ext4 file system's journal to the current | 147 | journal=update Update the ext4 file system's journal to the current |
142 | format. | 148 | format. |
@@ -282,9 +288,16 @@ stripe=n Number of filesystem blocks that mballoc will try | |||
282 | to use for allocation size and alignment. For RAID5/6 | 288 | to use for allocation size and alignment. For RAID5/6 |
283 | systems this should be the number of data | 289 | systems this should be the number of data |
284 | disks * RAID chunk size in file system blocks. | 290 | disks * RAID chunk size in file system blocks. |
285 | delalloc (*) Deferring block allocation until write-out time. | 291 | |
286 | nodelalloc Disable delayed allocation. Blocks are allocation | 292 | delalloc (*) Defer block allocation until just before ext4 |
287 | when data is copied from user to page cache. | 293 | writes out the block(s) in question. This |
294 | allows ext4 to better allocation decisions | ||
295 | more efficiently. | ||
296 | nodelalloc Disable delayed allocation. Blocks are allocated | ||
297 | when the data is copied from userspace to the | ||
298 | page cache, either via the write(2) system call | ||
299 | or when an mmap'ed page which was previously | ||
300 | unallocated is written for the first time. | ||
288 | 301 | ||
289 | max_batch_time=usec Maximum amount of time ext4 should wait for | 302 | max_batch_time=usec Maximum amount of time ext4 should wait for |
290 | additional filesystem operations to be batch | 303 | additional filesystem operations to be batch |
diff --git a/Documentation/filesystems/proc.txt b/Documentation/filesystems/proc.txt index b5aee7838a00..2c48f945546b 100644 --- a/Documentation/filesystems/proc.txt +++ b/Documentation/filesystems/proc.txt | |||
@@ -1113,7 +1113,6 @@ Table 1-12: Files in /proc/fs/ext4/<devname> | |||
1113 | .............................................................................. | 1113 | .............................................................................. |
1114 | File Content | 1114 | File Content |
1115 | mb_groups details of multiblock allocator buddy cache of free blocks | 1115 | mb_groups details of multiblock allocator buddy cache of free blocks |
1116 | mb_history multiblock allocation history | ||
1117 | .............................................................................. | 1116 | .............................................................................. |
1118 | 1117 | ||
1119 | 1118 | ||
diff --git a/Documentation/filesystems/vfat.txt b/Documentation/filesystems/vfat.txt index b58b84b50fa2..eed520fd0c8e 100644 --- a/Documentation/filesystems/vfat.txt +++ b/Documentation/filesystems/vfat.txt | |||
@@ -102,7 +102,7 @@ shortname=lower|win95|winnt|mixed | |||
102 | winnt: emulate the Windows NT rule for display/create. | 102 | winnt: emulate the Windows NT rule for display/create. |
103 | mixed: emulate the Windows NT rule for display, | 103 | mixed: emulate the Windows NT rule for display, |
104 | emulate the Windows 95 rule for create. | 104 | emulate the Windows 95 rule for create. |
105 | Default setting is `lower'. | 105 | Default setting is `mixed'. |
106 | 106 | ||
107 | tz=UTC -- Interpret timestamps as UTC rather than local time. | 107 | tz=UTC -- Interpret timestamps as UTC rather than local time. |
108 | This option disables the conversion of timestamps | 108 | This option disables the conversion of timestamps |