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[PATCH] splice: switch to using page_cache_readahead() 

Avoids doing useless work, when the file is fully cached.

Signed-off-by: Jens Axboe <axboe@suse.de>
hifive-unleashed-5.1
Jens Axboe 2006-04-27 08:44:27 +02:00 committed by Jens Axboe
parent 2be4d50295
commit eb645a24de
1 changed files with 2 additions and 2 deletions
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4
fs/splice.c
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@ -299,8 +299,8 @@ __generic_file_splice_read(struct file *in, loff_t *ppos,
* read-ahead if this is a non-zero offset (we are likely doing small
* chunk splice and the page is already there) for a single page.
*/
if (!loff || spd.nr_pages > 1)
do_page_cache_readahead(mapping, in, index, spd.nr_pages);
if (!loff || nr_pages > 1)
page_cache_readahead(mapping, &in->f_ra, in, index, nr_pages);
/*
* Now fill in the holes: