Re: [PATCH v2] ext4: make xattr inode reads faster

From	Theodore Ts'o <tytso@mit.edu>
Newsgroups	linux.kernel
Subject	Re: [PATCH v2] ext4: make xattr inode reads faster
Date	2017-08-06 06:20 +0200
Message-ID	<ublcJ-5Qr-5@gated-at.bofh.it> (permalink)
References	<u3gad-D7-5@gated-at.bofh.it> <u47HA-1mx-11@gated-at.bofh.it>
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On Sun, Jul 16, 2017 at 11:20:12PM -0700, Tahsin Erdogan wrote:
> ext4_xattr_inode_read() currently reads each block sequentially while
> waiting for io operation to complete before moving on to the next
> block. This prevents request merging in block layer.
> 
> Add a ext4_bread_batch() function that starts reads for all blocks
> then optionally waits for them to complete. A similar logic is used
> in ext4_find_entry(), so update that code to use the new function.
> 
> Signed-off-by: Tahsin Erdogan <tahsin@google.com>

Thanks, applied.

					- Ted

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Re: [PATCH v2] ext4: make xattr inode reads faster Theodore Ts'o <tytso@mit.edu> - 2017-08-06 06:20 +0200

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