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authorJan Kara <jack@suse.cz>2009-09-29 15:59:34 -0400
committerTheodore Ts'o <tytso@mit.edu>2009-09-29 15:59:34 -0400
commit8365388827663bd6fb773e3623ed9023c0f82b1d (patch)
treee8f0166c3c17501c33375f9b1b70e702f7bbd65d /Documentation/filesystems
parent6d7f18f6ea3a13af95bdf507fc54d42b165e1712 (diff)
ext4: Update documentation about quota mount options
Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Diffstat (limited to 'Documentation/filesystems')
-rw-r--r--Documentation/filesystems/ext4.txt13
1 files changed, 10 insertions, 3 deletions
diff --git a/Documentation/filesystems/ext4.txt b/Documentation/filesystems/ext4.txt
index 18b5ec8cea45..bf4f4b7e11b3 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
282 to use for allocation size and alignment. For RAID5/6 282 to use for allocation size and alignment. For RAID5/6
283 systems this should be the number of data 283 systems this should be the number of data
284 disks * RAID chunk size in file system blocks. 284 disks * RAID chunk size in file system blocks.
285delalloc (*) Deferring block allocation until write-out time. 285
286nodelalloc Disable delayed allocation. Blocks are allocation 286delalloc (*) Defer block allocation until just before ext4
287 when data is copied from user to page cache. 287 writes out the block(s) in question. This
288 allows ext4 to better allocation decisions
289 more efficiently.
290nodelalloc Disable delayed allocation. Blocks are allocated
291 when the data is copied from userspace to the
292 page cache, either via the write(2) system call
293 or when an mmap'ed page which was previously
294 unallocated is written for the first time.
288 295
289max_batch_time=usec Maximum amount of time ext4 should wait for 296max_batch_time=usec Maximum amount of time ext4 should wait for
290 additional filesystem operations to be batch 297 additional filesystem operations to be batch