Re: [PATCH] Btrfs-progs: convert: do not clear header rev
On Fri, Jun 30, 2017 at 04:52:54PM +0200, David Sterba wrote: >On Tue, Jun 27, 2017 at 12:07:13PM -0700, Liu Bo wrote: >> On Mon, Jun 26, 2017 at 05:55:02PM -0600, Liu Bo wrote: >> > So btrfs_set_header_flags() vs btrfs_set_header_flag, the difference is >> > sort of >> > similar to "=" vs "|=", when creating and initialising a new extent buffer, >> > convert uses the former one which clears header_rev by accident. >> > >> >> Here is the regression test script, >> >> mkfs.ext4 -F /disk >> btrfs-convert -d /disk >> mount /disk /mnt >> xfs_io -f -c "pwrite 0 4K" /mnt/foobar >> umount /disk >> >> --- >> It'd end up with 'unable to find ref blabla" shown in dmesg log. > >I can't reproduce it, is there something else needed? Tested kernel is >4.11.6. Check does not complain either. Excuse me, is your btrfs-progs already applied this patch? I'm sure that I can reproduce it in my test environment. 1. kernel 4.11.6 2. btrfs-progs kdave/devel(drop this patch) -- Thanks, Lu -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [PATCH] Btrfs-progs: convert: do not clear header rev
On Tue, Jun 27, 2017 at 12:07:13PM -0700, Liu Bo wrote: > On Mon, Jun 26, 2017 at 05:55:02PM -0600, Liu Bo wrote: > > So btrfs_set_header_flags() vs btrfs_set_header_flag, the difference is > > sort of > > similar to "=" vs "|=", when creating and initialising a new extent buffer, > > convert uses the former one which clears header_rev by accident. > > > > Here is the regression test script, > > mkfs.ext4 -F /disk > btrfs-convert -d /disk > mount /disk /mnt > xfs_io -f -c "pwrite 0 4K" /mnt/foobar > umount /disk > > --- > It'd end up with 'unable to find ref blabla" shown in dmesg log. I can't reproduce it, is there something else needed? Tested kernel is 4.11.6. Check does not complain either. -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [PATCH] Btrfs-progs: convert: do not clear header rev
On Mon, Jun 26, 2017 at 05:55:02PM -0600, Liu Bo wrote: > So btrfs_set_header_flags() vs btrfs_set_header_flag, the difference is sort > of > similar to "=" vs "|=", when creating and initialising a new extent buffer, > convert uses the former one which clears header_rev by accident. > Here is the regression test script, mkfs.ext4 -F /disk btrfs-convert -d /disk mount /disk /mnt xfs_io -f -c "pwrite 0 4K" /mnt/foobar umount /disk --- It'd end up with 'unable to find ref blabla" shown in dmesg log. thanks, -liubo > Signed-off-by: Liu Bo> --- > convert/common.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/convert/common.c b/convert/common.c > index 40bf32c..f0dd2cf 100644 > --- a/convert/common.c > +++ b/convert/common.c > @@ -167,7 +167,7 @@ static int setup_temp_extent_buffer(struct extent_buffer > *buf, > btrfs_set_header_generation(buf, 1); > btrfs_set_header_backref_rev(buf, BTRFS_MIXED_BACKREF_REV); > btrfs_set_header_owner(buf, owner); > - btrfs_set_header_flags(buf, BTRFS_HEADER_FLAG_WRITTEN); > + btrfs_set_header_flag(buf, BTRFS_HEADER_FLAG_WRITTEN); > write_extent_buffer(buf, chunk_uuid, btrfs_header_chunk_tree_uuid(buf), > BTRFS_UUID_SIZE); > write_extent_buffer(buf, fsid, btrfs_header_fsid(), BTRFS_FSID_SIZE); > -- > 2.5.0 > > -- > To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in > the body of a message to majord...@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [PATCH] Btrfs-progs: convert: do not clear header rev
At 06/27/2017 07:55 AM, Liu Bo wrote: So btrfs_set_header_flags() vs btrfs_set_header_flag, the difference is sort of similar to "=" vs "|=", when creating and initialising a new extent buffer, convert uses the former one which clears header_rev by accident. Thanks for catching this one. Reviewed-by: Qu WenruoThanks, Qu Signed-off-by: Liu Bo --- convert/common.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/convert/common.c b/convert/common.c index 40bf32c..f0dd2cf 100644 --- a/convert/common.c +++ b/convert/common.c @@ -167,7 +167,7 @@ static int setup_temp_extent_buffer(struct extent_buffer *buf, btrfs_set_header_generation(buf, 1); btrfs_set_header_backref_rev(buf, BTRFS_MIXED_BACKREF_REV); btrfs_set_header_owner(buf, owner); - btrfs_set_header_flags(buf, BTRFS_HEADER_FLAG_WRITTEN); + btrfs_set_header_flag(buf, BTRFS_HEADER_FLAG_WRITTEN); write_extent_buffer(buf, chunk_uuid, btrfs_header_chunk_tree_uuid(buf), BTRFS_UUID_SIZE); write_extent_buffer(buf, fsid, btrfs_header_fsid(), BTRFS_FSID_SIZE); -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html