diff options
| author | Andrew Morton <akpm@zip.com.au> | 2002-05-27 05:14:47 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@home.transmeta.com> | 2002-05-27 05:14:47 -0700 |
| commit | ce677ce203cdb7bf92e0c1babcd2322446bb735e (patch) | |
| tree | 54064ce3ff8db4c3b8a48d2e6dfafba1898088fc /mm/filemap.c | |
| parent | 9a0bd0e3d5b40e06ae1bc939117d9598bd4af6ba (diff) | |
[PATCH] move nr_active and nr_inactive into per-CPU page
It might reduce pagemap_lru_lock hold times a little, and is more
consistent. I think all global page accounting is now inside
page_states[].
Diffstat (limited to 'mm/filemap.c')
| -rw-r--r-- | mm/filemap.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/mm/filemap.c b/mm/filemap.c index cf33b0b34e96..14148545163a 100644 --- a/mm/filemap.c +++ b/mm/filemap.c @@ -1415,16 +1415,19 @@ asmlinkage ssize_t sys_sendfile64(int out_fd, int in_fd, loff_t *offset, size_t return ret; } -static ssize_t do_readahead(struct file *file, unsigned long index, unsigned long nr) +static ssize_t +do_readahead(struct file *file, unsigned long index, unsigned long nr) { struct address_space *mapping = file->f_dentry->d_inode->i_mapping; unsigned long max; + struct page_state ps; if (!mapping || !mapping->a_ops || !mapping->a_ops->readpage) return -EINVAL; /* Limit it to a sane percentage of the inactive list.. */ - max = nr_inactive_pages / 2; + get_page_state(&ps); + max = ps.nr_inactive / 2; if (nr > max) nr = max; |