mirror of https://gitee.com/openkylin/linux.git
ext4: Update documentation about quota mount options
Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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@ -282,9 +282,16 @@ stripe=n Number of filesystem blocks that mballoc will try
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to use for allocation size and alignment. For RAID5/6
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systems this should be the number of data
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disks * RAID chunk size in file system blocks.
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delalloc (*) Deferring block allocation until write-out time.
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nodelalloc Disable delayed allocation. Blocks are allocation
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when data is copied from user to page cache.
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delalloc (*) Defer block allocation until just before ext4
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writes out the block(s) in question. This
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allows ext4 to better allocation decisions
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more efficiently.
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nodelalloc Disable delayed allocation. Blocks are allocated
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when the data is copied from userspace to the
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page cache, either via the write(2) system call
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or when an mmap'ed page which was previously
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unallocated is written for the first time.
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max_batch_time=usec Maximum amount of time ext4 should wait for
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additional filesystem operations to be batch
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