- added patches from #5492 and 5654

[fs/lustre-release.git] / lustre / llite / symlink.c

diff --git a/lustre/llite/symlink.c b/lustre/llite/symlink.c
index 19d234e..6d8a38b 100644 (file)
--- a/lustre/llite/symlink.c
+++ b/lustre/llite/symlink.c
@@ -24,19 +24,18 @@
 #include <linux/stat.h>
 #include <linux/smp_lock.h>
 #include <linux/version.h>
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0))
-#include <asm/statfs.h>
-#endif
 #define DEBUG_SUBSYSTEM S_LLITE
 
 #include <linux/lustre_lite.h>
+#include "llite_internal.h"
 
 static int ll_readlink_internal(struct inode *inode,
-                                struct ptlrpc_request **request, char **symname)
+                                struct ptlrpc_request **request,
+                                char **symname)
 {
         struct ll_inode_info *lli = ll_i2info(inode);
         struct ll_sb_info *sbi = ll_i2sbi(inode);
-        struct ll_fid fid;
+        struct lustre_id id;
         struct mds_body *body;
         int rc, symlen = inode->i_size + 1;
         ENTRY;
@@ -49,12 +48,14 @@ static int ll_readlink_internal(struct inode *inode,
                 RETURN(0);
         }
 
-        ll_inode2fid(&fid, inode);
-        rc = mdc_getattr(&sbi->ll_mdc_conn, &fid,
-                         OBD_MD_LINKNAME, symlen, request);
+        ll_inode2id(&id, inode);
+        rc = md_getattr(sbi->ll_md_exp, &id, OBD_MD_LINKNAME, NULL, 0, symlen,
+                        request);
+
         if (rc) {
-                CERROR("inode %lu: rc = %d\n", inode->i_ino, rc);
-                RETURN(rc);
+                if (rc != -ENOENT)
+                        CERROR("inode %lu: rc = %d\n", inode->i_ino, rc);
+                GOTO(failed, rc);
         }
 
         body = lustre_msg_buf ((*request)->rq_repmsg, 0, sizeof (*body));
@@ -91,7 +92,7 @@ static int ll_readlink_internal(struct inode *inode,
 
  failed:
         ptlrpc_req_finished (*request);
-        RETURN (-EPROTO);
+        RETURN(rc);
 }
 
 static int ll_readlink(struct dentry *dentry, char *buffer, int buflen)
@@ -117,82 +118,52 @@ static int ll_readlink(struct dentry *dentry, char *buffer, int buflen)
         RETURN(rc);
 }
 
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
-static int ll_follow_link(struct dentry *dentry, struct nameidata *nd,
-                          struct lookup_intent *it)
+static int ll_follow_link(struct dentry *dentry, struct nameidata *nd)
 {
         struct inode *inode = dentry->d_inode;
         struct ll_inode_info *lli = ll_i2info(inode);
+        struct lookup_intent *it = ll_nd2it(nd);
         struct ptlrpc_request *request;
-        int op = 0, mode = 0, rc;
+        int rc;
         char *symname;
         ENTRY;
 
-        CDEBUG(D_VFSTRACE, "VFS Op\n");
         if (it != NULL) {
-                op = it->it_op;
-                mode = it->it_mode;
+                int op = it->it_op;
+                int mode = it->it_create_mode;
 
-                ll_intent_release(dentry, it);
+                ll_intent_release(it);
+                it->it_op = op;
+                it->it_create_mode = mode;
         }
 
+        CDEBUG(D_VFSTRACE, "VFS Op\n");
         down(&lli->lli_open_sem);
         rc = ll_readlink_internal(inode, &request, &symname);
         up(&lli->lli_open_sem);
-        if (rc)
+        if (rc) {
+                path_release(nd); /* Kernel assumes that ->follow_link()
+                                     releases nameidata on error */
                 GOTO(out, rc);
-
-        if (it != NULL) {
-                it->it_op = op;
-                it->it_mode = mode;
         }
 
-        rc = vfs_follow_link_it(nd, symname, it);
-        ptlrpc_req_finished(request);
- out:
-        RETURN(rc);
-}
-#else
-static int ll_follow_link(struct dentry *dentry, struct nameidata *nd)
-{
-        struct inode *inode = dentry->d_inode;
-        struct ll_inode_info *lli = ll_i2info(inode);
-        struct ptlrpc_request *request;
-        int op = 0, mode = 0, rc;
-        char *symname;
-        ENTRY;
-
-        op = nd->it.it_op;
-        mode = nd->it.it_mode;
-
-        ll_intent_release(dentry, &nd->it);
-
-        down(&lli->lli_open_sem);
-
-        rc = ll_readlink_internal(inode, &request, &symname);
-        if (rc)
-                GOTO(out, rc);
-
-        nd->it.it_op = op;
-        nd->it.it_mode = mode;
-
         rc = vfs_follow_link(nd, symname);
         ptlrpc_req_finished(request);
  out:
-        up(&lli->lli_open_sem);
-
         RETURN(rc);
 }
-#endif
 
-extern int ll_inode_revalidate(struct dentry *dentry);
-extern int ll_setattr(struct dentry *de, struct iattr *attr);
 struct inode_operations ll_fast_symlink_inode_operations = {
-        readlink:       ll_readlink,
-        setattr:        ll_setattr,
-        setattr_raw:    ll_setattr_raw,
-        follow_link2:   ll_follow_link,
+        .readlink       = ll_readlink,
+        .setattr        = ll_setattr,
+        .follow_link    = ll_follow_link,
+        .setxattr       = ll_setxattr,
+        .getxattr       = ll_getxattr,
+        .listxattr      = ll_listxattr,
+        .removexattr    = ll_removexattr,
 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
-        revalidate:     ll_inode_revalidate
+        .revalidate_it  = ll_inode_revalidate_it
+#else 
+        .getattr        = ll_getattr
 #endif
 };