src/patches/suse-2.6.27.25/patches.suse/novfs-patch-2.6.27

   1 From: Jeff Mahoney <jeffm@suse.com>
   2 Subject: [PATCH] novfs: mapping->tree_lock is a spin_lock
   3
   4  mapping->tree_lock changed from a read_lock to a spin_lock in 2.6.27.
   5
   6 Signed-off-by: Jeff Mahoney <jeffm@suse.com>
   7 ---
   8  fs/novfs/inode.c |    4 ++--
   9  1 file changed, 2 insertions(+), 2 deletions(-)
  10
  11 --- a/fs/novfs/inode.c
  12 +++ b/fs/novfs/inode.c
  13 @@ -2029,7 +2029,7 @@ int novfs_a_writepages(struct address_sp
  14                                 memset(pages, 0,
  15                                        sizeof(struct page *) * max_page_lookup);
  16
  17 -                               read_lock_irq(&mapping->tree_lock);
  18 +                               spin_lock_irq(&mapping->tree_lock);
  19
  20                                 /*
  21                                  * Need to ask for one less then max_page_lookup or we
  22 @@ -2063,7 +2063,7 @@ int novfs_a_writepages(struct address_sp
  23                                         page_cache_get(pages[i]);
  24                                 }
  25
  26 -                               read_unlock_irq(&mapping->tree_lock);
  27 +                               spin_unlock_irq(&mapping->tree_lock);
  28
  29                                 if (nr_pages) {
  30                                         index = pages[nr_pages - 1]->index + 1;