lustre/kernel_patches/patches/vfs_intent-reduce-stack-usage-2.6-suse-newer.patch

   1 ---
   2  fs/namei.c            |    5 +----
   3  include/linux/namei.h |    7 +++++++
   4  2 files changed, 8 insertions(+), 4 deletions(-)
   5
   6 --- linux-2.6.5-7.282.orig/fs/namei.c
   7 +++ linux-2.6.5-7.282/fs/namei.c
   8 @@ -2369,7 +2369,6 @@ static inline int
   9  __vfs_follow_link(struct nameidata *nd, const char *link)
  10  {
  11         int res = 0;
  12 -       struct lookup_intent it = nd->intent;
  13         char *name;
  14
  15         if (IS_ERR(link))
  16 @@ -2382,9 +2381,7 @@ __vfs_follow_link(struct nameidata *nd,
  17                         goto out;
  18         }
  19
  20 -       intent_init(&nd->intent, it.it_op);
  21 -       nd->intent.it_flags = it.it_flags;
  22 -       nd->intent.it_create_mode = it.it_create_mode;
  23 +       intent_reset_fs_part(&nd->intent);
  24         res = link_path_walk(link, nd);
  25  out:
  26         if (current->link_count || res || nd->last_type!=LAST_NORM)
  27 --- linux-2.6.5-7.282.orig/include/linux/namei.h
  28 +++ linux-2.6.5-7.282/include/linux/namei.h
  29 @@ -37,6 +37,13 @@ struct lookup_intent {
  30         } d;
  31  };
  32
  33 +static inline void intent_reset_fs_part(struct lookup_intent *it)
  34 +{
  35 +        memset(&it->d, 0, sizeof(it->d));
  36 +        it->it_magic = INTENT_MAGIC;
  37 +        it->it_op_release = NULL;
  38 +}
  39 +
  40  static inline void intent_init(struct lookup_intent *it, int op)
  41  {
  42         memset(it, 0, sizeof(*it));