diff options
Diffstat (limited to 'Documentation/filesystems/ext4.txt')
-rw-r--r-- | Documentation/filesystems/ext4.txt | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/Documentation/filesystems/ext4.txt b/Documentation/filesystems/ext4.txt index 4f329afe20ec..560f88dc7090 100644 --- a/Documentation/filesystems/ext4.txt +++ b/Documentation/filesystems/ext4.txt | |||
@@ -86,9 +86,11 @@ Alex is working on a new set of patches right now. | |||
86 | When mounting an ext4 filesystem, the following option are accepted: | 86 | When mounting an ext4 filesystem, the following option are accepted: |
87 | (*) == default | 87 | (*) == default |
88 | 88 | ||
89 | extents ext4 will use extents to address file data. The | 89 | extents (*) ext4 will use extents to address file data. The |
90 | file system will no longer be mountable by ext3. | 90 | file system will no longer be mountable by ext3. |
91 | 91 | ||
92 | noextents ext4 will not use extents for newly created files | ||
93 | |||
92 | journal_checksum Enable checksumming of the journal transactions. | 94 | journal_checksum Enable checksumming of the journal transactions. |
93 | This will allow the recovery code in e2fsck and the | 95 | This will allow the recovery code in e2fsck and the |
94 | kernel to detect corruption in the kernel. It is a | 96 | kernel to detect corruption in the kernel. It is a |
@@ -206,6 +208,12 @@ nobh (a) cache disk block mapping information | |||
206 | "nobh" option tries to avoid associating buffer | 208 | "nobh" option tries to avoid associating buffer |
207 | heads (supported only for "writeback" mode). | 209 | heads (supported only for "writeback" mode). |
208 | 210 | ||
211 | mballoc (*) Use the multiple block allocator for block allocation | ||
212 | nomballoc disabled multiple block allocator for block allocation. | ||
213 | stripe=n Number of filesystem blocks that mballoc will try | ||
214 | to use for allocation size and alignment. For RAID5/6 | ||
215 | systems this should be the number of data | ||
216 | disks * RAID chunk size in file system blocks. | ||
209 | 217 | ||
210 | Data Mode | 218 | Data Mode |
211 | --------- | 219 | --------- |