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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 <[email protected]>
Cc: Steven French <[email protected]>
Cc: Miklos Szeredi <[email protected]>
Cc: Steven Whitehouse <[email protected]>
Cc: Trond Myklebust <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
OGAWA Hirofumi 2006-11-02 22:07:06 -08:00 • committed by Linus Torvalds
commit 029e332ea7
1 changed files with 2 additions and 0 deletions
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2
mm/readahead.c
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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;
}