Linux 3.4 compat, d_make_root() replaces d_alloc_root()

torvalds/linux@adc0e91ab1 introduced
introduced d_make_root() as a replacement for d_alloc_root(). Further
commits appear to have removed d_alloc_root() from the Linux source
tree. This causes the following failure:

  error: implicit declaration of function 'd_alloc_root'
  [-Werror=implicit-function-declaration]

To correct this we update the code to use the current d_make_root()
interface for readability.  Then we introduce an autotools check
to determine if d_make_root() is available.  If it isn't then we
define some compatibility logic which used the older d_alloc_root()
interface.

Signed-off-by: Richard Yao <ryao@gentoo.org>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #776
This commit is contained in:
Richard Yao
2012-06-06 17:08:00 +00:00
committed by Brian Behlendorf
parent ab85f8455b
commit 6a0936babc
61 changed files with 182 additions and 1 deletions
+1
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@@ -64,6 +64,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-blkdev-get-by-path.m4 \
$(top_srcdir)/config/kernel-check-disk-size-change.m4 \
$(top_srcdir)/config/kernel-create-umode-t.m4 \
$(top_srcdir)/config/kernel-d-make-root.m4 \
$(top_srcdir)/config/kernel-d-obtain-alias.m4 \
$(top_srcdir)/config/kernel-evict-inode.m4 \
$(top_srcdir)/config/kernel-fallocate.m4 \
+1
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@@ -65,6 +65,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-blkdev-get-by-path.m4 \
$(top_srcdir)/config/kernel-check-disk-size-change.m4 \
$(top_srcdir)/config/kernel-create-umode-t.m4 \
$(top_srcdir)/config/kernel-d-make-root.m4 \
$(top_srcdir)/config/kernel-d-obtain-alias.m4 \
$(top_srcdir)/config/kernel-evict-inode.m4 \
$(top_srcdir)/config/kernel-fallocate.m4 \