From: wangdi <wangdi>
Date: Fri, 29 Sep 2006 05:56:39 +0000 (+0000)
Subject: Branch: b_new_cmd
X-Git-Tag: v1_8_0_110~486^2~774
X-Git-Url: https://git.whamcloud.com/gitweb?a=commitdiff_plain;h=780cb7c533b873035763d7de39ad3f0c9269bf9a;p=fs%2Flustre-release.git

Branch: b_new_cmd
some cleanup and fixes for split after landing env stuff
---

diff --git a/lustre/cmm/cmm_device.c b/lustre/cmm/cmm_device.c
index 9ab3360..a0c2819 100644
--- a/lustre/cmm/cmm_device.c
+++ b/lustre/cmm/cmm_device.c
@@ -349,12 +349,21 @@ static void cmm_key_fini(const struct lu_context *ctx,
         OBD_FREE_PTR(info);
 }
 
-struct lu_context_key cmm_thread_key = {
+static struct lu_context_key cmm_thread_key = {
         .lct_tags = LCT_MD_THREAD,
         .lct_init = cmm_key_init,
         .lct_fini = cmm_key_fini
 };
 
+struct cmm_thread_info *cmm_env_info(const struct lu_env *env)
+{
+        struct cmm_thread_info *info;
+
+        info = lu_context_key_get(&env->le_ctx, &cmm_thread_key);
+        LASSERT(info != NULL);
+        return info;
+}
+
 static int cmm_type_init(struct lu_device_type *t)
 {
         return lu_context_key_register(&cmm_thread_key);
diff --git a/lustre/cmm/cmm_internal.h b/lustre/cmm/cmm_internal.h
index f5b9876..b60c86e 100644
--- a/lustre/cmm/cmm_internal.h
+++ b/lustre/cmm/cmm_internal.h
@@ -93,6 +93,7 @@ struct cmr_object {
 
 struct cmm_thread_info {
         struct md_attr  cmi_ma;
+        struct lu_buf   cmi_buf;
 };
 
 static inline struct cmm_device *cmm_obj2dev(struct cmm_object *c)
@@ -117,6 +118,7 @@ static inline struct md_object *cmm2child_obj(struct cmm_object *o)
         return (o ? lu2md(lu_object_next(&o->cmo_obj.mo_lu)) : NULL);
 }
 
+struct cmm_thread_info *cmm_env_info(const struct lu_env *env);
 /* cmm_object.c */
 struct lu_object *cmm_object_alloc(const struct lu_env *env,
                                    const struct lu_object_header *hdr,
diff --git a/lustre/cmm/cmm_object.c b/lustre/cmm/cmm_object.c
index 799a6ee..aad8e05 100644
--- a/lustre/cmm/cmm_object.c
+++ b/lustre/cmm/cmm_object.c
@@ -36,8 +36,6 @@
 #include "cmm_internal.h"
 #include "mdc_internal.h"
 
-extern struct lu_context_key cmm_thread_key;
-
 static int cmm_fld_lookup(struct cmm_device *cm,
                           const struct lu_fid *fid, mdsno_t *mds,
                           const struct lu_env *env)
@@ -458,7 +456,7 @@ static int __cmm_mode_get(const struct lu_env *env, struct md_device *md,
         if (IS_ERR(mo_s))
                 RETURN(PTR_ERR(mo_s));
 
-        cmi = lu_context_key_get(&env->le_ctx, &cmm_thread_key);
+        cmi = cmm_env_info(env);
         LASSERT(cmi);
         tmp_ma = &cmi->cmi_ma;
         tmp_ma->ma_need = MA_INODE;
@@ -532,7 +530,7 @@ static int cmm_is_subdir(const struct lu_env *env, struct md_object *mo,
         int rc;
         ENTRY;
 
-        cmi = lu_context_key_get(&env->le_ctx, &cmm_thread_key);
+        cmi = cmm_env_info(env);
         rc = __cmm_mode_get(env, md_obj2dev(mo), fid, &cmi->cmi_ma);
         if (rc)
                 RETURN(rc);
@@ -779,7 +777,7 @@ static int cmr_create(const struct lu_env *env, struct md_object *mo_p,
 
         ENTRY;
         /* check the SGID attr */
-        cmi = lu_context_key_get(&env->le_ctx, &cmm_thread_key);
+        cmi = cmm_env_info(env);
         LASSERT(cmi);
         tmp_ma = &cmi->cmi_ma;
         tmp_ma->ma_need = MA_INODE;
diff --git a/lustre/cmm/cmm_split.c b/lustre/cmm/cmm_split.c
index 3ac1c21..051e2a0 100644
--- a/lustre/cmm/cmm_split.c
+++ b/lustre/cmm/cmm_split.c
@@ -398,10 +398,22 @@ free_rdpg:
         RETURN(rc);
 }
 
+static struct lu_buf *cmm_buf_get(const struct lu_env *env, void *area,
+                                  ssize_t len)
+{
+        struct lu_buf *buf;
+        
+        buf = &cmm_env_info(env)->cmi_buf;
+        buf->lb_buf = area;
+        buf->lb_len = len;
+        return buf;
+}
+
 int cml_try_to_split(const struct lu_env *env, struct md_object *mo)
 {
         struct cmm_device *cmm = cmm_obj2dev(md2cmm_obj(mo));
         struct md_attr *ma;
+        struct lu_buf *buf;
         int rc = 0;
         ENTRY;
 
@@ -438,10 +450,9 @@ int cml_try_to_split(const struct lu_env *env, struct md_object *mo)
         if (rc)
                 GOTO(cleanup, ma);
 
+        buf = cmm_buf_get(env, ma->ma_lmv, ma->ma_lmv_size);
         /* step4: set mea to the master object */
-        rc = mo_xattr_set(env, md_object_next(mo), ma->ma_lmv,
-                          ma->ma_lmv_size, MDS_LMV_MD_NAME, 0);
-
+        rc = mo_xattr_set(env, md_object_next(mo), buf, MDS_LMV_MD_NAME, 0);
         if (rc == -ERESTART)
                 CWARN("Dir"DFID" has been split \n",
                                 PFID(lu_object_fid(&mo->mo_lu)));