staging/lustre: adapt proc_dir_entry change

In 3.10 merge window, proc_dir_entry is now private to proc. However,
Lustre lprocfs depends heavily on it and its now-gone read_proc_t and
write_proc_t members.

The patch largely changed the fact, and made lprocfs depend on none of
proc_dir_entry private members. All lprocfs callers are converted to
use the new seq_file scheme.

Also lprocfs_srch is removed so that we can drop lprocfs_lock. All callers
are changed to save created pde in proper place.

See https://jira.hpdd.intel.com/browse/LU-3319 for more details.

Signed-off-by: Peng Tao <tao.peng@emc.com>
Signed-off-by: Andreas Dilger <andreas.dilger@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 3 insertions, 2 deletions

diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_hash.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_hash.h
index c5b371569da8..f6361b3f0a0c 100644
--- a/drivers/staging/lustre/include/linux/libcfs/libcfs_hash.h
+++ b/drivers/staging/lustre/include/linux/libcfs/libcfs_hash.h
@@ -792,8 +792,9 @@ static inline void __cfs_hash_set_theta(cfs_hash_t *hs, int min, int max)
 }
 
 /* Generic debug formatting routines mainly for proc handler */
-int cfs_hash_debug_header(char *str, int size);
-int cfs_hash_debug_str(cfs_hash_t *hs, char *str, int size);
+struct seq_file;
+int cfs_hash_debug_header(struct seq_file *m);
+int cfs_hash_debug_str(cfs_hash_t *hs, struct seq_file *m);
 
 /*
  * Generic djb2 hash algorithm for character arrays.