[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, 4 insertions, 4 deletions

diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c
index 72ae9e3306f4..ca5f9f90d794 100644
--- a/fs/ocfs2/file.c
+++ b/fs/ocfs2/file.c
@@ -492,7 +492,7 @@ restart_all:
         }
 
         /* blocks peope in read/write from reading our allocation
-         * until we're done changing it. We depend on i_sem to block
+         * until we're done changing it. We depend on i_mutex to block
          * other extend/truncate calls while we're here. Ordering wrt
          * start_trans is important here -- always do it before! */
         down_write(&OCFS2_I(inode)->ip_alloc_sem);
@@ -958,8 +958,8 @@ static ssize_t ocfs2_file_aio_write(struct kiocb *iocb,
                 filp->f_flags &= ~O_DIRECT;
 #endif
 
-        down(&inode->i_sem);
-        /* to match setattr's i_sem -> i_alloc_sem -> rw_lock ordering */
+        mutex_lock(&inode->i_mutex);
+        /* to match setattr's i_mutex -> i_alloc_sem -> rw_lock ordering */
         if (filp->f_flags & O_DIRECT) {
                 have_alloc_sem = 1;
                 down_read(&inode->i_alloc_sem);
@@ -1123,7 +1123,7 @@ out:
                 up_read(&inode->i_alloc_sem);
         if (rw_level != -1) 
                 ocfs2_rw_unlock(inode, rw_level);
-        up(&inode->i_sem);
+        mutex_unlock(&inode->i_mutex);
 
         mlog_exit(ret);
         return ret;