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authorJens Axboe <axboe@suse.de>2006-04-20 13:05:48 +0200
committerJens Axboe <axboe@suse.de>2006-04-20 13:05:48 +0200
commit82aa5d6183667aa2a5f3c61e390934b0273d2ad7 (patch)
tree81fa617b8a970173cc7114acf1acc0e676caa1c5 /fs
parenta0aa7f68afeeb92f6274b395177c20e617c8ed2d (diff)
[PATCH] splice: fix smaller sized splice reads
Signed-off-by: Jens Axboe <axboe@suse.de>
Diffstat (limited to 'fs')
-rw-r--r--fs/splice.c13
1 files changed, 12 insertions, 1 deletions
diff --git a/fs/splice.c b/fs/splice.c
index 22fac87e90b..0559e7577a0 100644
--- a/fs/splice.c
+++ b/fs/splice.c
@@ -275,6 +275,15 @@ __generic_file_splice_read(struct file *in, loff_t *ppos,
error = 0;
bytes = 0;
for (i = 0; i < nr_pages; i++, index++) {
+ unsigned int this_len;
+
+ if (!len)
+ break;
+
+ /*
+ * this_len is the max we'll use from this page
+ */
+ this_len = min(len, PAGE_CACHE_SIZE - loff);
find_page:
/*
* lookup the page for this index
@@ -366,11 +375,13 @@ readpage:
* force quit after adding this page
*/
nr_pages = i;
+ this_len = min(this_len, loff);
}
}
fill_it:
pages[i] = page;
- bytes += PAGE_CACHE_SIZE - loff;
+ bytes += this_len;
+ len -= this_len;
loff = 0;
}