[PATCH] mutex subsystem, semaphore to mutex: VFS, ->i_sem

This patch converts the inode semaphore to a mutex. I have tested it on
XFS and compiled as much as one can consider on an ia64. Anyway your
luck with it might be different.

Modified-by: Ingo Molnar <mingo@elte.hu>

(finished the conversion)

Signed-off-by: Jes Sorensen <jes@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 2 insertions, 2 deletions

diff --git a/mm/memory.c b/mm/memory.c
index 3944fec38012..7a11ddd5060f 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -1784,13 +1784,13 @@ int vmtruncate_range(struct inode *inode, loff_t offset, loff_t end)
         if (!inode->i_op || !inode->i_op->truncate_range)
                 return -ENOSYS;
 
-        down(&inode->i_sem);
+        mutex_lock(&inode->i_mutex);
         down_write(&inode->i_alloc_sem);
         unmap_mapping_range(mapping, offset, (end - offset), 1);
         truncate_inode_pages_range(mapping, offset, end);
         inode->i_op->truncate_range(inode, offset, end);
         up_write(&inode->i_alloc_sem);
-        up(&inode->i_sem);
+        mutex_unlock(&inode->i_mutex);
 
         return 0;
 }