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* Re: dkms build error
@ 2010-06-13  3:51 Jim Ursetto
  0 siblings, 0 replies; 2+ messages in thread
From: Jim Ursetto @ 2010-06-13  3:51 UTC (permalink / raw)
  To: linux-btrfs

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On Mon, 31 May 2010 09:20:22 +0200 Andreas Philipp wrote:

> I did not succeed to compile a btrfs module via dkms from btrfs-unstable...
> For the exact error message, please see the make.log...

> /var/lib/dkms/btrfs/git/build/extent-tree.c:1699: error: 
>   ‘DISCARD_FL_BARRIER’ undeclared (first use in this function)

The problem is the blkdev flag name change that occurred in this commit from
Linus' tree around 2.6.35:;a=commitdiff;h=fbd9b09a177a481eda256447c881f014f29034fe

which is not in btrfs-unstable.  That patch doesn't apply cleanly to the
btrfs-unstable tree so attached is one that just modifies extent-tree.c.


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diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index b34d32f..c6a4f45 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -1589,7 +1589,7 @@ static void btrfs_issue_discard(struct block_device *bdev,
 				u64 start, u64 len)
 	blkdev_issue_discard(bdev, start >> 9, len >> 9, GFP_KERNEL,
 static int btrfs_discard_extent(struct btrfs_root *root, u64 bytenr,

^ permalink raw reply related	[flat|nested] 2+ messages in thread

* dkms build error
@ 2010-05-31  7:20 Andreas Philipp
  0 siblings, 0 replies; 2+ messages in thread
From: Andreas Philipp @ 2010-05-31  7:20 UTC (permalink / raw)
  To: linux-btrfs


Unfortunately, I did not succeed to compile a btrfs module via dkms fro=
btrfs-unstable (commit 9aeead73782c4b8e2a91def36dbf95db28605c95) for ke=
version 2.6.34-git16. For the exact error message, please see the make.=
attached. If I replace the symlink to btrfs-unstable/fs/btrfs by a suml=
to the corresponding subdirectory of the kernel tree everything works w=

Andreas Philipp

aph@thor ~ $ cat /var/lib/dkms/btrfs/git/build/make.log
DKMS make.log for btrfs-git for kernel 2.6.34-git16 (x86_64)
Sun May 30 20:37:43 CEST 2010
make: Entering directory `/usr/src/linux-2.6.34-git16'
  LD      /var/lib/dkms/btrfs/git/build/built-in.o
  CC [M]  /var/lib/dkms/btrfs/git/build/super.o
/var/lib/dkms/btrfs/git/build/super.c: In function =91btrfs_fill_super=92=
/var/lib/dkms/btrfs/git/build/super.c:446: warning: assignment from inc=
ompatible pointer type
  CC [M]  /var/lib/dkms/btrfs/git/build/ctree.o
  CC [M]  /var/lib/dkms/btrfs/git/build/extent-tree.o
/var/lib/dkms/btrfs/git/build/extent-tree.c: In function =91btrfs_issue=
/var/lib/dkms/btrfs/git/build/extent-tree.c:1699: error: =91DISCARD_FL_=
BARRIER=92 undeclared (first use in this function)
/var/lib/dkms/btrfs/git/build/extent-tree.c:1699: error: (Each undeclar=
ed identifier is reported only once
/var/lib/dkms/btrfs/git/build/extent-tree.c:1699: error: for each funct=
ion it appears in.)
make[1]: *** [/var/lib/dkms/btrfs/git/build/extent-tree.o] Error 1
make: *** [_module_/var/lib/dkms/btrfs/git/build] Error 2
make: Leaving directory `/usr/src/linux-2.6.34-git16'

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