diff --git a/hgext/convert/hg.py b/hgext/convert/hg.py
--- a/hgext/convert/hg.py
+++ b/hgext/convert/hg.py
@@ -225,7 +225,7 @@ class mercurial_sink(converter_sink):
 
     def hascommit(self, rev):
         if not rev in self.repo and self.clonebranches:
-            raise util.Abort(_('revision %s not be found in destination '
+            raise util.Abort(_('revision %s not found in destination '
                                'repository (lookups with clonebranches=true '
                                'are not implemented)') % rev)
         return rev in self.repo
diff --git a/hgext/convert/subversion.py b/hgext/convert/subversion.py
--- a/hgext/convert/subversion.py
+++ b/hgext/convert/subversion.py
@@ -1194,5 +1194,5 @@ class svn_sink(converter_sink, commandli
         if rev in self.childmap:
             return True
         raise util.Abort(_('splice map revision %s not found in subversion '
-                           'child map (revision lookups are not implemented')
+                           'child map (revision lookups are not implemented)')
                          % rev)
diff --git a/hgext/largefiles/basestore.py b/hgext/largefiles/basestore.py
--- a/hgext/largefiles/basestore.py
+++ b/hgext/largefiles/basestore.py
@@ -8,8 +8,6 @@
 
 '''base class for store implementations and store-related utility code'''
 
-import os
-import tempfile
 import binascii
 import re
 
@@ -75,13 +73,8 @@ class basestore(object):
             ui.note(_('getting %s:%s\n') % (filename, hash))
 
             storefilename = lfutil.storepath(self.repo, hash)
-            storedir = os.path.dirname(storefilename)
-
-            # No need to pass mode='wb' to fdopen(), since mkstemp() already
-            # opened the file in binary mode.
-            (tmpfd, tmpfilename) = tempfile.mkstemp(
-                dir=storedir, prefix=os.path.basename(filename))
-            tmpfile = os.fdopen(tmpfd, 'w')
+            tmpfile = util.atomictempfile(storefilename,
+                                          createmode=self.repo.store.createmode)
 
             try:
                 hhash = binascii.hexlify(self._getfile(tmpfile, filename, hash))
@@ -93,14 +86,11 @@ class basestore(object):
                 if hhash != "":
                     ui.warn(_('%s: data corruption (expected %s, got %s)\n')
                             % (filename, hash, hhash))
-                tmpfile.close() # no-op if it's already closed
-                os.remove(tmpfilename)
+                tmpfile.discard() # no-op if it's already closed
                 missing.append(filename)
                 continue
 
-            if os.path.exists(storefilename): # Windows
-                os.remove(storefilename)
-            os.rename(tmpfilename, storefilename)
+            tmpfile.close()
             lfutil.linktousercache(self.repo, hash)
             success.append((filename, hhash))
 
diff --git a/hgext/largefiles/lfutil.py b/hgext/largefiles/lfutil.py
--- a/hgext/largefiles/lfutil.py
+++ b/hgext/largefiles/lfutil.py
@@ -13,7 +13,6 @@ import errno
 import platform
 import shutil
 import stat
-import tempfile
 
 from mercurial import dirstate, httpconnection, match as match_, util, scmutil
 from mercurial.i18n import _
@@ -237,11 +236,11 @@ def copytostoreabsolute(repo, file, hash
     if inusercache(repo.ui, hash):
         link(usercachepath(repo.ui, hash), storepath(repo, hash))
     else:
-        dst = util.atomictempfile(storepath(repo, hash))
+        dst = util.atomictempfile(storepath(repo, hash),
+                                  createmode=repo.store.createmode)
         for chunk in util.filechunkiter(open(file, 'rb')):
             dst.write(chunk)
         dst.close()
-        util.copymode(file, storepath(repo, hash))
         linktousercache(repo, hash)
 
 def linktousercache(repo, hash):
@@ -439,13 +438,6 @@ def islfilesrepo(repo):
     return ('largefiles' in repo.requirements and
             util.any(shortname + '/' in f[0] for f in repo.store.datafiles()))
 
-def mkstemp(repo, prefix):
-    '''Returns a file descriptor and a filename corresponding to a temporary
-    file in the repo's largefiles store.'''
-    path = repo.join(longname)
-    util.makedirs(path)
-    return tempfile.mkstemp(prefix=prefix, dir=path)
-
 class storeprotonotcapable(Exception):
     def __init__(self, storetypes):
         self.storetypes = storetypes
diff --git a/hgext/largefiles/proto.py b/hgext/largefiles/proto.py
--- a/hgext/largefiles/proto.py
+++ b/hgext/largefiles/proto.py
@@ -20,23 +20,22 @@ def putlfile(repo, proto, sha):
     user cache.'''
     proto.redirect()
 
-    fd, tmpname = lfutil.mkstemp(repo, prefix='hg-putlfile')
-    tmpfp = os.fdopen(fd, 'wb+')
+    tmpfp = util.atomictempfile(lfutil.storepath(repo, sha),
+                                createmode=repo.store.createmode)
     try:
         try:
             proto.getfile(tmpfp)
-            tmpfp.seek(0)
-            if sha != lfutil.hexsha1(tmpfp):
+            tmpfp._fp.seek(0)
+            if sha != lfutil.hexsha1(tmpfp._fp):
                 raise IOError(0, _('largefile contents do not match hash'))
             tmpfp.close()
-            lfutil.copytostoreabsolute(repo, tmpname, sha)
+            lfutil.linktousercache(repo, sha)
         except IOError, e:
             repo.ui.warn(_('largefiles: failed to put %s into store: %s') %
                          (sha, e.strerror))
             return wireproto.pushres(1)
     finally:
-        tmpfp.close()
-        os.unlink(tmpname)
+        tmpfp.discard()
 
     return wireproto.pushres(0)
 
diff --git a/mercurial/cmdutil.py b/mercurial/cmdutil.py
--- a/mercurial/cmdutil.py
+++ b/mercurial/cmdutil.py
@@ -1024,8 +1024,15 @@ def walkchangerevs(repo, match, opts, pr
 
             return reversed(revs)
         def iterfiles():
+            pctx = repo['.']
             for filename in match.files():
-                yield filename, None
+                if follow:
+                    if filename not in pctx:
+                        raise util.Abort(_('cannot follow file not in parent '
+                                           'revision: "%s"') % filename)
+                    yield filename, pctx[filename].filenode()
+                else:
+                    yield filename, None
             for filename_node in copies:
                 yield filename_node
         for file_, node in iterfiles():
diff --git a/mercurial/commands.py b/mercurial/commands.py
--- a/mercurial/commands.py
+++ b/mercurial/commands.py
@@ -2605,7 +2605,7 @@ def graft(ui, repo, *revs, **opts):
             repo.dirstate.setparents(current.node(), nullid)
             repo.dirstate.write()
             # fix up dirstate for copies and renames
-            cmdutil.duplicatecopies(repo, ctx.rev(), current.node())
+            cmdutil.duplicatecopies(repo, ctx.rev(), ctx.p1().rev())
             # report any conflicts
             if stats and stats[3] > 0:
                 # write out state for --continue
diff --git a/tests/test-check-code-hg.t b/tests/test-check-code-hg.t
--- a/tests/test-check-code-hg.t
+++ b/tests/test-check-code-hg.t
@@ -3,7 +3,7 @@
 
   $ hg manifest | xargs "$check_code" || echo 'FAILURE IS NOT AN OPTION!!!'
 
-  $ hg manifest | xargs "$check_code" --warnings --nolineno --per-file=0
+  $ hg manifest | xargs "$check_code" --warnings --nolineno --per-file=0 || true
   contrib/check-code.py:0:
    > #    (r'^\s+[^_ \n][^_. \n]+_[^_\n]+\s*=', "don't use underbars in identifiers"),
    warning: line over 80 characters
@@ -654,4 +654,3 @@
   tests/test-walkrepo.py:0:
    >         print "Found %d repositories when I should have found 3" % (len(reposet),)
    warning: line over 80 characters
-  [123]
diff --git a/tests/test-convert-hg-startrev.t b/tests/test-convert-hg-startrev.t
--- a/tests/test-convert-hg-startrev.t
+++ b/tests/test-convert-hg-startrev.t
@@ -115,6 +115,7 @@ Convert from merge parent
   o  0 "1: add c" files: a b c
   
   $ cd conv1
+  $ hg up -q
 
 Check copy preservation
 
diff --git a/tests/test-convert-splicemap.t b/tests/test-convert-splicemap.t
--- a/tests/test-convert-splicemap.t
+++ b/tests/test-convert-splicemap.t
@@ -203,7 +203,7 @@ Test clonebranches
   >   --splicemap splicemap ordered ordered-hg3
   initializing destination ordered-hg3 repository
   scanning source...
-  abort: revision 717d54d67e6c31fd75ffef2ff3042bdd98418437 not be found in destination repository (lookups with clonebranches=true are not implemented)
+  abort: revision 717d54d67e6c31fd75ffef2ff3042bdd98418437 not found in destination repository (lookups with clonebranches=true are not implemented)
   [255]
 
 Test invalid dependency
diff --git a/tests/test-largefiles-cache.t b/tests/test-largefiles-cache.t
--- a/tests/test-largefiles-cache.t
+++ b/tests/test-largefiles-cache.t
@@ -1,3 +1,5 @@
+  $ "$TESTDIR/hghave" unix-permissions || exit 80
+
 Create user cache directory
 
   $ USERCACHE=`pwd`/cache; export USERCACHE
@@ -70,3 +72,50 @@ Update working directory to tip, again.
   0 largefiles updated, 0 removed
   $ hg status
   ! large
+
+Portable way to print file permissions:
+
+  $ cd ..
+  $ cat > ls-l.py <<EOF
+  > #!/usr/bin/env python
+  > import sys, os
+  > path = sys.argv[1]
+  > print '%03o' % (os.lstat(path).st_mode & 0777)
+  > EOF
+  $ chmod +x ls-l.py
+
+Test that files in .hg/largefiles inherit mode from .hg/store, not
+from file in working copy:
+
+  $ cd src
+  $ chmod 750 .hg/store
+  $ chmod 660 large
+  $ echo change >> large
+  $ hg commit -m change
+  $ ../ls-l.py .hg/largefiles/e151b474069de4ca6898f67ce2f2a7263adf8fea
+  640
+
+Test permission of with files in .hg/largefiles created by update:
+
+  $ cd ../mirror
+  $ rm -r "$USERCACHE" .hg/largefiles # avoid links
+  $ chmod 750 .hg/store
+  $ hg pull ../src --update -q
+  $ ../ls-l.py .hg/largefiles/e151b474069de4ca6898f67ce2f2a7263adf8fea
+  640
+
+Test permission of files created by push:
+
+  $ hg serve -R ../src -d -p $HGPORT --pid-file hg.pid \
+  >          --config "web.allow_push=*" --config web.push_ssl=no
+  $ cat hg.pid >> $DAEMON_PIDS
+
+  $ echo change >> large
+  $ hg commit -m change
+
+  $ rm -r "$USERCACHE"
+
+  $ hg push -q http://localhost:$HGPORT/
+
+  $ ../ls-l.py ../src/.hg/largefiles/b734e14a0971e370408ab9bce8d56d8485e368a9
+  640
diff --git a/tests/test-log.t b/tests/test-log.t
--- a/tests/test-log.t
+++ b/tests/test-log.t
@@ -1,20 +1,28 @@
   $ "$TESTDIR/hghave" execbit || exit 80
 
+The g is crafted to have 2 filelog topological heads in a linear
+changeset graph
+
   $ hg init a
-
   $ cd a
   $ echo a > a
+  $ echo f > f
   $ hg ci -Ama -d '1 0'
   adding a
+  adding f
 
   $ hg cp a b
+  $ hg cp f g
   $ hg ci -mb -d '2 0'
 
   $ mkdir dir
   $ hg mv b dir
+  $ echo g >> g
+  $ echo f >> f
   $ hg ci -mc -d '3 0'
 
   $ hg mv a b
+  $ hg cp -f f g
   $ echo a > d
   $ hg add d
   $ hg ci -md -d '4 0'
@@ -23,7 +31,7 @@
   $ hg ci -me -d '5 0'
 
   $ hg log a
-  changeset:   0:8580ff50825a
+  changeset:   0:9161b9aeaf16
   user:        test
   date:        Thu Jan 01 00:00:01 1970 +0000
   summary:     a
@@ -32,34 +40,34 @@
 -f, directory
 
   $ hg log -f dir
-  abort: cannot follow nonexistent file: "dir"
+  abort: cannot follow file not in parent revision: "dir"
   [255]
 
 -f, but no args
 
   $ hg log -f
-  changeset:   4:66c1345dc4f9
+  changeset:   4:7e4639b4691b
   tag:         tip
   user:        test
   date:        Thu Jan 01 00:00:05 1970 +0000
   summary:     e
   
-  changeset:   3:7c6c671bb7cc
+  changeset:   3:2ca5ba701980
   user:        test
   date:        Thu Jan 01 00:00:04 1970 +0000
   summary:     d
   
-  changeset:   2:41dd4284081e
+  changeset:   2:f8954cd4dc1f
   user:        test
   date:        Thu Jan 01 00:00:03 1970 +0000
   summary:     c
   
-  changeset:   1:784de7cef101
+  changeset:   1:d89b0a12d229
   user:        test
   date:        Thu Jan 01 00:00:02 1970 +0000
   summary:     b
   
-  changeset:   0:8580ff50825a
+  changeset:   0:9161b9aeaf16
   user:        test
   date:        Thu Jan 01 00:00:01 1970 +0000
   summary:     a
@@ -67,11 +75,12 @@
 
 one rename
 
+  $ hg up -q 2
   $ hg log -vf a
-  changeset:   0:8580ff50825a
+  changeset:   0:9161b9aeaf16
   user:        test
   date:        Thu Jan 01 00:00:01 1970 +0000
-  files:       a
+  files:       a f
   description:
   a
   
@@ -79,8 +88,9 @@ one rename
 
 many renames
 
+  $ hg up -q tip
   $ hg log -vf e
-  changeset:   4:66c1345dc4f9
+  changeset:   4:7e4639b4691b
   tag:         tip
   user:        test
   date:        Thu Jan 01 00:00:05 1970 +0000
@@ -89,26 +99,26 @@ many renames
   e
   
   
-  changeset:   2:41dd4284081e
+  changeset:   2:f8954cd4dc1f
   user:        test
   date:        Thu Jan 01 00:00:03 1970 +0000
-  files:       b dir/b
+  files:       b dir/b f g
   description:
   c
   
   
-  changeset:   1:784de7cef101
+  changeset:   1:d89b0a12d229
   user:        test
   date:        Thu Jan 01 00:00:02 1970 +0000
-  files:       b
+  files:       b g
   description:
   b
   
   
-  changeset:   0:8580ff50825a
+  changeset:   0:9161b9aeaf16
   user:        test
   date:        Thu Jan 01 00:00:01 1970 +0000
-  files:       a
+  files:       a f
   description:
   a
   
@@ -117,35 +127,36 @@ many renames
 
 log -pf dir/b
 
+  $ hg up -q 3
   $ hg log -pf dir/b
-  changeset:   2:41dd4284081e
+  changeset:   2:f8954cd4dc1f
   user:        test
   date:        Thu Jan 01 00:00:03 1970 +0000
   summary:     c
   
-  diff -r 784de7cef101 -r 41dd4284081e dir/b
+  diff -r d89b0a12d229 -r f8954cd4dc1f dir/b
   --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
   +++ b/dir/b	Thu Jan 01 00:00:03 1970 +0000
   @@ -0,0 +1,1 @@
   +a
   
-  changeset:   1:784de7cef101
+  changeset:   1:d89b0a12d229
   user:        test
   date:        Thu Jan 01 00:00:02 1970 +0000
   summary:     b
   
-  diff -r 8580ff50825a -r 784de7cef101 b
+  diff -r 9161b9aeaf16 -r d89b0a12d229 b
   --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
   +++ b/b	Thu Jan 01 00:00:02 1970 +0000
   @@ -0,0 +1,1 @@
   +a
   
-  changeset:   0:8580ff50825a
+  changeset:   0:9161b9aeaf16
   user:        test
   date:        Thu Jan 01 00:00:01 1970 +0000
   summary:     a
   
-  diff -r 000000000000 -r 8580ff50825a a
+  diff -r 000000000000 -r 9161b9aeaf16 a
   --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
   +++ b/a	Thu Jan 01 00:00:01 1970 +0000
   @@ -0,0 +1,1 @@
@@ -155,39 +166,53 @@ log -pf dir/b
 log -vf dir/b
 
   $ hg log -vf dir/b
-  changeset:   2:41dd4284081e
+  changeset:   2:f8954cd4dc1f
   user:        test
   date:        Thu Jan 01 00:00:03 1970 +0000
-  files:       b dir/b
+  files:       b dir/b f g
   description:
   c
   
   
-  changeset:   1:784de7cef101
+  changeset:   1:d89b0a12d229
   user:        test
   date:        Thu Jan 01 00:00:02 1970 +0000
-  files:       b
+  files:       b g
   description:
   b
   
   
-  changeset:   0:8580ff50825a
+  changeset:   0:9161b9aeaf16
   user:        test
   date:        Thu Jan 01 00:00:01 1970 +0000
-  files:       a
+  files:       a f
   description:
   a
   
   
 
 
+-f and multiple filelog heads
+
+  $ hg up -q 2
+  $ hg log -f g --template '{rev}\n'
+  2
+  1
+  0
+  $ hg up -q tip
+  $ hg log -f g --template '{rev}\n'
+  3
+  2
+  0
+
+
 log copies with --copies
 
   $ hg log -vC --template '{rev} {file_copies}\n'
   4 e (dir/b)
-  3 b (a)
+  3 b (a)g (f)
   2 dir/b (b)
-  1 b (a)
+  1 b (a)g (f)
   0 
 
 log copies switch without --copies, with old filecopy template
@@ -203,16 +228,16 @@ log copies switch with --copies
 
   $ hg log -vC --template '{rev} {file_copies_switch}\n'
   4 e (dir/b)
-  3 b (a)
+  3 b (a)g (f)
   2 dir/b (b)
-  1 b (a)
+  1 b (a)g (f)
   0 
 
 
 log copies with hardcoded style and with --style=default
 
   $ hg log -vC -r4
-  changeset:   4:66c1345dc4f9
+  changeset:   4:7e4639b4691b
   tag:         tip
   user:        test
   date:        Thu Jan 01 00:00:05 1970 +0000
@@ -223,7 +248,7 @@ log copies with hardcoded style and with
   
   
   $ hg log -vC -r4 --style=default
-  changeset:   4:66c1345dc4f9
+  changeset:   4:7e4639b4691b
   tag:         tip
   user:        test
   date:        Thu Jan 01 00:00:05 1970 +0000
@@ -259,15 +284,15 @@ log copies, execute bit set
 log -p d
 
   $ hg log -pv d
-  changeset:   3:7c6c671bb7cc
+  changeset:   3:2ca5ba701980
   user:        test
   date:        Thu Jan 01 00:00:04 1970 +0000
-  files:       a b d
+  files:       a b d g
   description:
   d
   
   
-  diff -r 41dd4284081e -r 7c6c671bb7cc d
+  diff -r f8954cd4dc1f -r 2ca5ba701980 d
   --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
   +++ b/d	Thu Jan 01 00:00:04 1970 +0000
   @@ -0,0 +1,1 @@
@@ -278,18 +303,18 @@ log -p d
 log --removed file
 
   $ hg log --removed -v a
-  changeset:   3:7c6c671bb7cc
+  changeset:   3:2ca5ba701980
   user:        test
   date:        Thu Jan 01 00:00:04 1970 +0000
-  files:       a b d
+  files:       a b d g
   description:
   d
   
   
-  changeset:   0:8580ff50825a
+  changeset:   0:9161b9aeaf16
   user:        test
   date:        Thu Jan 01 00:00:01 1970 +0000
-  files:       a
+  files:       a f
   description:
   a
   
@@ -298,10 +323,10 @@ log --removed file
 log --removed revrange file
 
   $ hg log --removed -v -r0:2 a
-  changeset:   0:8580ff50825a
+  changeset:   0:9161b9aeaf16
   user:        test
   date:        Thu Jan 01 00:00:01 1970 +0000
-  files:       a
+  files:       a f
   description:
   a