PATCH: btrfs defrag ioctl, override extent count and size checks compression enabled.

modified - I assumed it would not be useful to compress inline extents. -- Andrew Mahone andrew DOT mahone AT gmail DOT com\ btrfs_defrag_compress.patch Description: Binary data

[PATCH] btrfs: ignore unfragmented file checks in defrag when compression enabled

Inform should_defrag_range if BTRFS_DEFRAG_RANGE_COMPRESS is set. If so, skip checks for adjacent extents and extent size when deciding whether to defrag, as these can prevent an uncompressed and unfragmented file from being compressed as requested. Signed-off-by: Andrew Mahone --- fs/btrfs

[PATCH] Ignore unfragmented file checks in defrag when compression enabled

I noticed that btrfs fi defrag -c can't be used to compress files unless they are fragmented. This patch corrects the problem, by informing should_defrag_range if compression is enabled, and skipping tests for extent and adjacent extents if it is. Andrew Mahone (1): btrfs: ignore unfragm

[PATCH] btrfs: ignore unfragmented file checks in defrag when compression enabled - rebased

-by: Andrew Mahone --- fs/btrfs/ioctl.c |8 +--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c index 0e92e57..9ec23b9 100644 --- a/fs/btrfs/ioctl.c +++ b/fs/btrfs/ioctl.c @@ -832,7 +832,8 @@ static bool defrag_check_next_extent(struct

[PATCH 0/5] btrfs: lz4/lz4hc compression

203.70MB lz4hc 20270 8280 171.68MB A large portion of the work was done by Dave Sterba, but in flattening the commits attribution has been lost. My contribution has been in debugging some of the cases in which it could crash or produce incorrect data, and cleaning it up for the ML. Andrew Maho

[PATCH 1/5] btrfs: lz4: import lz4/lz4hc C and header files

Signed-off-by: Andrew Mahone --- fs/btrfs/lz4.c | 843 +++ fs/btrfs/lz4.h | 128 + fs/btrfs/lz4hc.c | 685 fs/btrfs/lz4hc.h | 58 4 files changed, 1714 insertions(+) create mode

[PATCH 2/5] btrfs: lz4: add incompat flags and compression types

Signed-off-by: Andrew Mahone --- fs/btrfs/ctree.h | 16 fs/btrfs/disk-io.c | 4 fs/btrfs/ioctl.c | 5 + fs/btrfs/super.c | 22 +- 4 files changed, 42 insertions(+), 5 deletions(-) diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index

[PATCH 3/5] btrfs: lz4: add lz4_wrapper implementing btrfs compression interface

Signed-off-by: Andrew Mahone --- fs/btrfs/lz4_wrapper.c | 419 + 1 file changed, 419 insertions(+) create mode 100644 fs/btrfs/lz4_wrapper.c diff --git a/fs/btrfs/lz4_wrapper.c b/fs/btrfs/lz4_wrapper.c new file mode 100644 index 000..60854de

[PATCH 4/5] btrfs: lz4: add lz4 files in Makefile

Signed-off-by: Andrew Mahone --- fs/btrfs/Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/btrfs/Makefile b/fs/btrfs/Makefile index 0c4fa2b..ba5dd55 100644 --- a/fs/btrfs/Makefile +++ b/fs/btrfs/Makefile @@ -8,7 +8,7 @@ btrfs-y += super.o ctree.o extent-tree.o

[PATCH 5/5] btrfs: enable lz4/lz4hc compression

Signed-off-by: Andrew Mahone --- fs/btrfs/compression.c | 2 ++ fs/btrfs/compression.h | 2 ++ fs/btrfs/super.c | 6 -- 3 files changed, 4 insertions(+), 6 deletions(-) diff --git a/fs/btrfs/compression.c b/fs/btrfs/compression.c index 86eff48..3ed7251 100644 --- a/fs/btrfs

[PATCH 2/5] btrfs: lz4: add incompat flags and compression types

Signed-off-by: Andrew Mahone --- fs/btrfs/ctree.h | 16 fs/btrfs/disk-io.c | 4 fs/btrfs/ioctl.c | 5 + fs/btrfs/super.c | 22 +- 4 files changed, 42 insertions(+), 5 deletions(-) diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index