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| author | Jens Axboe <axboe@suse.de> | 2006-05-01 19:59:54 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@suse.de> | 2006-05-01 19:59:54 +0200 |
| commit | e27dedd84c119e2f7af54fcde3293be5ad812103 (patch) | |
| tree | b388be80b04dd3f04c07ec12955e62f8ccb58bbc | |
| parent | [PATCH] Add ->splice_read/splice_write to def_blk_fops (diff) | |
| download | linux-e27dedd84c119e2f7af54fcde3293be5ad812103.tar.xz linux-e27dedd84c119e2f7af54fcde3293be5ad812103.zip | |
[PATCH] splice: call handle_ra_miss() on failure to lookup page
Notify the readahead logic of the missing page. Suggested by
Oleg Nesterov.
Signed-off-by: Jens Axboe <axboe@suse.de>
| -rw-r--r-- | fs/splice.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/splice.c b/fs/splice.c index d7538d83c367..0a6916423e7d 100644 --- a/fs/splice.c +++ b/fs/splice.c @@ -302,6 +302,12 @@ __generic_file_splice_read(struct file *in, loff_t *ppos, page = find_get_page(mapping, index); if (!page) { /* + * Make sure the read-ahead engine is notified + * about this failure. + */ + handle_ra_miss(mapping, &in->f_ra, index); + + /* * page didn't exist, allocate one. */ page = page_cache_alloc_cold(mapping); |