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FS-Cache: Don't delete pending pages from the page-store tracking tree 

Don't delete pending pages from the page-store tracking tree, but rather send
them for another write as they've presumably been updated.

Signed-off-by: David Howells <dhowells@redhat.com>
hifive-unleashed-5.1
David Howells 2009-11-19 18:11:29 +00:00
parent 1bccf513ac
commit 285e728b0a
2 changed files with 5 additions and 4 deletions
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7
fs/fscache/page.c
View File

@ -57,8 +57,11 @@ static void fscache_end_page_write(struct fscache_object *object,
/* delete the page from the tree if it is now no longer
* pending */
spin_lock(&cookie->stores_lock);
fscache_stat(&fscache_n_store_radix_deletes);
xpage = radix_tree_delete(&cookie->stores, page->index);
if (!radix_tree_tag_get(&cookie->stores, page->index,
FSCACHE_COOKIE_PENDING_TAG)) {
fscache_stat(&fscache_n_store_radix_deletes);
xpage = radix_tree_delete(&cookie->stores, page->index);
}
spin_unlock(&cookie->stores_lock);
wake_up_bit(&cookie->flags, 0);
}

2
lib/radix-tree.c
View File

@ -546,7 +546,6 @@ out:
}
EXPORT_SYMBOL(radix_tree_tag_clear);
#ifndef __KERNEL__ /* Only the test harness uses this at present */
/**
* radix_tree_tag_get - get a tag on a radix tree node
* @root: radix tree root
@ -609,7 +608,6 @@ int radix_tree_tag_get(struct radix_tree_root *root,
}
}
EXPORT_SYMBOL(radix_tree_tag_get);
#endif
/**
* radix_tree_next_hole - find the next hole (not-present entry)