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[PATCH] Cleanup read_pages()

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Current read_pages() assume ->readpages() frees the passed pages.

This patch free the pages in ->read_pages(), if those were remaining in the
pages_list.  So, readpages() just can ignore the remaining pages in
pages_list.

Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Cc: Steven French <sfrench@us.ibm.com>
Cc: Miklos Szeredi <miklos@szeredi.hu>
Cc: Steven Whitehouse <swhiteho@redhat.com>
Cc: Trond Myklebust <trond.myklebust@fys.uio.no>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
OGAWA Hirofumi
2006-11-02 22:07:06 -08:00
committed by Linus Torvalds
parent 5d861d920a
commit 029e332ea7
1 changed files with 2 additions and 0 deletions
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mm/readahead.c
+2
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@@ -173,6 +173,8 @@ static int read_pages(struct address_space *mapping, struct file *filp,
if (mapping->a_ops->readpages) {
ret = mapping->a_ops->readpages(filp, mapping, pages, nr_pages);
/* Clean up the remaining pages */
put_pages_list(pages);
goto out;
}