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authorIngo Molnar <mingo@kernel.org>2014-02-02 09:45:39 +0100
committerIngo Molnar <mingo@kernel.org>2014-02-02 09:45:39 +0100
commiteaa4e4fcf1b5c60e656d93242f7fe422173f25b2 (patch)
treec05d5d6ca3f625d72a9d136b4c485d3dc9472089 /mm/readahead.c
parentbe1e4e760d940c14d119bffef5eb007dfdf29046 (diff)
parent5cb480f6b488128140c940abff3c36f524a334a8 (diff)
Merge branch 'linus' into sched/core, to resolve conflicts
Conflicts: kernel/sysctl.c Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'mm/readahead.c')
-rw-r--r--mm/readahead.c15
1 files changed, 5 insertions, 10 deletions
diff --git a/mm/readahead.c b/mm/readahead.c
index 7cdbb44aa90bd..0de2360d65f3f 100644
--- a/mm/readahead.c
+++ b/mm/readahead.c
@@ -211,8 +211,6 @@ out:
int force_page_cache_readahead(struct address_space *mapping, struct file *filp,
pgoff_t offset, unsigned long nr_to_read)
{
- int ret = 0;
-
if (unlikely(!mapping->a_ops->readpage && !mapping->a_ops->readpages))
return -EINVAL;
@@ -226,15 +224,13 @@ int force_page_cache_readahead(struct address_space *mapping, struct file *filp,
this_chunk = nr_to_read;
err = __do_page_cache_readahead(mapping, filp,
offset, this_chunk, 0);
- if (err < 0) {
- ret = err;
- break;
- }
- ret += err;
+ if (err < 0)
+ return err;
+
offset += this_chunk;
nr_to_read -= this_chunk;
}
- return ret;
+ return 0;
}
/*
@@ -576,8 +572,7 @@ do_readahead(struct address_space *mapping, struct file *filp,
if (!mapping || !mapping->a_ops)
return -EINVAL;
- force_page_cache_readahead(mapping, filp, index, nr);
- return 0;
+ return force_page_cache_readahead(mapping, filp, index, nr);
}
SYSCALL_DEFINE3(readahead, int, fd, loff_t, offset, size_t, count)