[PATCH v5 61/78] dax: Convert __dax_invalidate_mapping_entry to XArray
From: Matthew Wilcox <willy@infradead.org>
Date: 2017-12-15 22:04:33
Also in:
linux-f2fs-devel, linux-fsdevel, linux-mm, linux-usb, linux-xfs, lkml
Subsystem:
filesystem direct access (dax), filesystems (vfs and infrastructure), the rest · Maintainers:
Dan Williams, Alexander Viro, Christian Brauner, Linus Torvalds
From: Matthew Wilcox <redacted> Simple now that we already have an xa_state! Signed-off-by: Matthew Wilcox <redacted> --- fs/dax.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/fs/dax.c b/fs/dax.c
index 2629ffa70575..d3894c15609a 100644
--- a/fs/dax.c
+++ b/fs/dax.c@@ -413,24 +413,24 @@ static int __dax_invalidate_mapping_entry(struct address_space *mapping, XA_STATE(xas, &mapping->pages, index); int ret = 0; void *entry; - struct radix_tree_root *pages = &mapping->pages; xa_lock_irq(&mapping->pages); entry = get_unlocked_mapping_entry(&xas); if (!entry || WARN_ON_ONCE(!xa_is_value(entry))) goto out; if (!trunc && - (radix_tree_tag_get(pages, index, PAGECACHE_TAG_DIRTY) || - radix_tree_tag_get(pages, index, PAGECACHE_TAG_TOWRITE))) + (xas_get_tag(&xas, PAGECACHE_TAG_DIRTY) || + xas_get_tag(&xas, PAGECACHE_TAG_TOWRITE))) goto out; - radix_tree_delete(pages, index); + xas_store(&xas, NULL); mapping->nrexceptional--; ret = 1; out: put_unlocked_mapping_entry(&xas, entry); - xa_unlock_irq(&mapping->pages); + xas_unlock_irq(&xas); return ret; } + /* * Delete DAX entry at @index from @mapping. Wait for it * to be unlocked before deleting it.
--
2.15.1
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