IB/qib: backport qib_fs.c to RHEL6.2

Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>

diff --git a/backports/2.6.32-EL6.2/23-qib_fs_RHEL6.2_backports.patch b/backports/2.6.32-EL6.2/23-qib_fs_RHEL6.2_backports.patch
new file mode 100644 (file)
index 0000000..18dc17d
--- /dev/null
+++ b/backports/2.6.32-EL6.2/23-qib_fs_RHEL6.2_backports.patch
@@ -0,0 +1,77 @@
+diff -rup a/drivers/infiniband/hw/qib/qib_fs.c b/drivers/infiniband/hw/qib/qib_fs.c
+--- a/drivers/infiniband/hw/qib/qib_fs.c       2012-05-21 10:14:13.000000000 -0400
++++ b/drivers/infiniband/hw/qib/qib_fs.c       2012-05-21 10:51:08.000000000 -0400
+@@ -58,7 +58,9 @@ static int qibfs_mknod(struct inode *dir
+               goto bail;
+       }
+ 
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,36))
+       inode->i_ino = get_next_ino();
++#endif
+       inode->i_mode = mode;
+       inode->i_uid = 0;
+       inode->i_gid = 0;
+@@ -453,14 +455,27 @@ static int remove_file(struct dentry *pa
+               goto bail;
+       }
+ 
++#if (LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,36))
++      spin_lock(&dcache_lock);
++#endif
+       spin_lock(&tmp->d_lock);
+       if (!(d_unhashed(tmp) && tmp->d_inode)) {
++#if (LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,36))
++              dget_locked(tmp);
++#else
+               dget_dlock(tmp);
++#endif
+               __d_drop(tmp);
+               spin_unlock(&tmp->d_lock);
++#if (LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,36))
++              spin_unlock(&dcache_lock);
++#endif
+               simple_unlink(parent->d_inode, tmp);
+       } else {
+               spin_unlock(&tmp->d_lock);
++#if (LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,36))
++              spin_unlock(&dcache_lock);
++#endif
+       }
+ 
+       ret = 0;
+@@ -552,6 +567,7 @@ bail:
+       return ret;
+ }
+ 
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,36))
+ static struct dentry *qibfs_mount(struct file_system_type *fs_type, int flags,
+                       const char *dev_name, void *data)
+ {
+@@ -559,6 +575,15 @@ static struct dentry *qibfs_mount(struct
+       ret = mount_single(fs_type, flags, data, qibfs_fill_super);
+       if (!IS_ERR(ret))
+               qib_super = ret->d_sb;
++#else
++static struct dentry *qibfs_get_sb(struct file_system_type *fs_type, int flags,
++                      const char *dev_name, void *data, struct vfsmount *mnt)
++{
++      int ret = get_sb_single(fs_type, flags, data,
++                                      qibfs_fill_super, mnt);
++      if (ret >= 0)
++              qib_super = mnt->mnt_sb;
++#endif
+       return ret;
+ }
+ 
+@@ -600,7 +625,11 @@ int qibfs_remove(struct qib_devdata *dd)
+ static struct file_system_type qibfs_fs_type = {
+       .owner =        THIS_MODULE,
+       .name =         "ipathfs",
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,36))
+       .mount =        qibfs_mount,
++#else
++      .get_sb =        qibfs_get_sb,
++#endif
+       .kill_sb =      qibfs_kill_super,
+ };
+