[PATCH] md/bitmap: tidy up i_writecount handling in md/bitmap

md/bitmap modifies i_writecount of a bitmap file to make sure that no-one else
writes to it.  The reverting of the change is sometimes done twice, and there
is one error path where it is omitted.

This patch tidies that up.

Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 1 insertions, 7 deletions

diff --git a/drivers/md/bitmap.c b/drivers/md/bitmap.c
index dfe5e12741ba..e40d3e4b8d27 100644
--- a/drivers/md/bitmap.c
+++ b/drivers/md/bitmap.c
@@ -625,7 +625,6 @@ static void drain_write_queues(struct bitmap *bitmap)
 static void bitmap_file_put(struct bitmap *bitmap)
 {
         struct file *file;
-        struct inode *inode;
         unsigned long flags;
 
         spin_lock_irqsave(&bitmap->lock, flags);
@@ -637,13 +636,8 @@ static void bitmap_file_put(struct bitmap *bitmap)
 
         bitmap_file_unmap(bitmap);
 
-        if (file) {
-                inode = file->f_mapping->host;
-                spin_lock(&inode->i_lock);
-                atomic_set(&inode->i_writecount, 1); /* allow writes again */
-                spin_unlock(&inode->i_lock);
+        if (file)
                 fput(file);
-        }
 }