From 97807e75956a2d240282bc64fab1b71762de0546 Mon Sep 17 00:00:00 2001
From: Pranith K <pranithk@gluster.com>
Date: Thu, 14 Jul 2011 06:31:47 +0000
Subject: storage/posix: Remove the interim fix that handles the gfid race

Signed-off-by: Pranith Kumar K <pranithk@gluster.com>
Signed-off-by: Anand Avati <avati@gluster.com>

BUG: 2745 (failure to detect split brain)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=2745
---
 xlators/storage/posix/src/posix-helpers.c | 68 -------------------------------
 xlators/storage/posix/src/posix.c         |  2 +-
 2 files changed, 1 insertion(+), 69 deletions(-)

(limited to 'xlators')

diff --git a/xlators/storage/posix/src/posix-helpers.c b/xlators/storage/posix/src/posix-helpers.c
index 43a5a7053..484e38c71 100644
--- a/xlators/storage/posix/src/posix-helpers.c
+++ b/xlators/storage/posix/src/posix-helpers.c
@@ -784,74 +784,6 @@ unlock:
         UNLOCK (&priv->lock);
 }
 
-static int
-is_fresh_file (struct stat *stat)
-{
-        struct timeval tv;
-
-        gettimeofday (&tv, NULL);
-
-        if ((stat->st_ctime >= (tv.tv_sec - 1))
-            && (stat->st_ctime <= tv.tv_sec))
-                return 1;
-
-        return 0;
-}
-
-
-int
-posix_gfid_heal (xlator_t *this, const char *path, dict_t *xattr_req)
-{
-        /* The purpose of this function is to prevent a race
-           where an inode creation FOP (like mkdir/mknod/create etc)
-           races with lookup in the following way:
-
-                   {create thread}       |    {lookup thread}
-                                         |
-                                         t0
-                      mkdir ("name")     |
-                                         t1
-                                         |     posix_gfid_set ("name", 2);
-                                         t2
-             posix_gfid_set ("name", 1); |
-                                         t3
-                      lstat ("name");    |     lstat ("name");
-
-          In the above case mkdir FOP would have resulted with GFID 2 while
-          it should have been GFID 1. It matters in the case where GFID would
-          have gotten set to 1 on other subvolumes of replciate/distribute
-
-          The "solution" here is that, if we detect lookup is attempting to
-          set a GFID on a file which is created very recently, but does not
-          yet have a GFID (i.e, between t1 and t2), then "fake" it as though
-          posix_gfid_heal was called at t0 instead.
-        */
-
-        uuid_t       uuid_curr;
-        int          ret = 0;
-        struct stat  stat = {0, };
-
-        if (!xattr_req)
-                goto out;
-
-        if (sys_lstat (path, &stat) != 0)
-                goto out;
-
-        ret = sys_lgetxattr (path, GFID_XATTR_KEY, uuid_curr, 16);
-        if (ret != 16) {
-                if (is_fresh_file (&stat)) {
-                        ret = -1;
-                        errno = ENOENT;
-                        goto out;
-                }
-        }
-
-        ret = posix_gfid_set (this, path, xattr_req);
-out:
-        return ret;
-}
-
-
 int
 posix_acl_xattr_set (xlator_t *this, const char *path, dict_t *xattr_req)
 {
diff --git a/xlators/storage/posix/src/posix.c b/xlators/storage/posix/src/posix.c
index 8e613ff20..6b7168338 100644
--- a/xlators/storage/posix/src/posix.c
+++ b/xlators/storage/posix/src/posix.c
@@ -113,7 +113,7 @@ posix_lookup (call_frame_t *frame, xlator_t *this,
 
         MAKE_REAL_PATH (real_path, this, loc->path);
 
-        posix_gfid_heal (this, real_path, xattr_req);
+        posix_gfid_set (this, real_path, xattr_req);
 
         op_ret   = posix_lstat_with_gfid (this, real_path, &buf);
         op_errno = errno;
-- 
cgit