diff options
| author | Wu Fengguang <fengguang.wu@intel.com> | 2009-06-16 15:31:20 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-06-16 19:47:28 -0700 |
| commit | f7e839dd36fd940b0202cfb7d39b2a1b2dc59b1b (patch) | |
| tree | 5c99332a62aa8135bd58485e7f3c22634ecdc90c /mm | |
| parent | 1ebf26a9b338534def47f307c6c8694b6dfc0a79 (diff) | |
| download | blackbird-op-linux-f7e839dd36fd940b0202cfb7d39b2a1b2dc59b1b.tar.gz blackbird-op-linux-f7e839dd36fd940b0202cfb7d39b2a1b2dc59b1b.zip | |
readahead: move max_sane_readahead() calls into force_page_cache_readahead()
Impact: code simplification.
Cc: Nick Piggin <npiggin@suse.de>
Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Cc: Ying Han <yinghan@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/fadvise.c | 2 | ||||
| -rw-r--r-- | mm/filemap.c | 3 | ||||
| -rw-r--r-- | mm/madvise.c | 3 | ||||
| -rw-r--r-- | mm/readahead.c | 1 |
4 files changed, 4 insertions, 5 deletions
diff --git a/mm/fadvise.c b/mm/fadvise.c index 54a0f8040afa..e43359214f6f 100644 --- a/mm/fadvise.c +++ b/mm/fadvise.c @@ -101,7 +101,7 @@ SYSCALL_DEFINE(fadvise64_64)(int fd, loff_t offset, loff_t len, int advice) ret = force_page_cache_readahead(mapping, file, start_index, - max_sane_readahead(nrpages)); + nrpages); if (ret > 0) ret = 0; break; diff --git a/mm/filemap.c b/mm/filemap.c index 1b60f30cebfa..dcef9fd6b92e 100644 --- a/mm/filemap.c +++ b/mm/filemap.c @@ -1390,8 +1390,7 @@ do_readahead(struct address_space *mapping, struct file *filp, if (!mapping || !mapping->a_ops || !mapping->a_ops->readpage) return -EINVAL; - force_page_cache_readahead(mapping, filp, index, - max_sane_readahead(nr)); + force_page_cache_readahead(mapping, filp, index, nr); return 0; } diff --git a/mm/madvise.c b/mm/madvise.c index b9ce574827c8..e994dcb479d6 100644 --- a/mm/madvise.c +++ b/mm/madvise.c @@ -123,8 +123,7 @@ static long madvise_willneed(struct vm_area_struct * vma, end = vma->vm_end; end = ((end - vma->vm_start) >> PAGE_SHIFT) + vma->vm_pgoff; - force_page_cache_readahead(file->f_mapping, - file, start, max_sane_readahead(end - start)); + force_page_cache_readahead(file->f_mapping, file, start, end - start); return 0; } diff --git a/mm/readahead.c b/mm/readahead.c index 133b6d525513..a224182a3a63 100644 --- a/mm/readahead.c +++ b/mm/readahead.c @@ -210,6 +210,7 @@ int force_page_cache_readahead(struct address_space *mapping, struct file *filp, if (unlikely(!mapping->a_ops->readpage && !mapping->a_ops->readpages)) return -EINVAL; + nr_to_read = max_sane_readahead(nr_to_read); while (nr_to_read) { int err; |
