Staging: lustre: Replace non-standard spin-lock's macro

This patch replaces non-standard spin lock macro with standard linux function.

This is done using Coccinelle and semantic patch used is as follows:

@@
expression x;
@@

- TREE_READ_LOCK_IRQ(x)
+ spin_lock_irq(&x->tree_lock)

@@
expression x;
@@

- TREE_READ_UNLOCK_IRQ(x)
+ spin_unlock_irq(&x->tree_lock)

Signed-off-by: Vaishali Thakkar <vthakkar1994@gmail.com>
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/lustre/lustre/llite/dir.c b/drivers/staging/lustre/lustre/llite/dir.c
index b0bb709..662bdf0 100644 (file)
--- a/drivers/staging/lustre/lustre/llite/dir.c
+++ b/drivers/staging/lustre/lustre/llite/dir.c
@@ -275,14 +275,14 @@ static struct page *ll_dir_page_locate(struct inode *dir, __u64 *hash,
        struct page *page;
        int found;
 
-       TREE_READ_LOCK_IRQ(mapping);
+       spin_lock_irq(&mapping->tree_lock);
        found = radix_tree_gang_lookup(&mapping->page_tree,
                                       (void **)&page, offset, 1);
        if (found > 0) {
                struct lu_dirpage *dp;
 
                page_cache_get(page);
-               TREE_READ_UNLOCK_IRQ(mapping);
+               spin_unlock_irq(&mapping->tree_lock);
                /*
                 * In contrast to find_lock_page() we are sure that directory
                 * page cannot be truncated (while DLM lock is held) and,
@@ -326,7 +326,7 @@ static struct page *ll_dir_page_locate(struct inode *dir, __u64 *hash,
                }
 
        } else {
-               TREE_READ_UNLOCK_IRQ(mapping);
+               spin_unlock_irq(&mapping->tree_lock);
                page = NULL;
        }
        return page;