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Date: Sun, 6 Aug 2017 00:14:57 -0400 From: Theodore Ts'o <tytso@....edu> To: Tahsin Erdogan <tahsin@...gle.com> Cc: Andreas Dilger <adilger@...ger.ca>, linux-ext4@...r.kernel.org, linux-kernel@...r.kernel.org Subject: Re: [PATCH v2] ext4: make xattr inode reads faster 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@...gle.com> Thanks, applied. - Ted
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