[PATCH 0/3] btrfs-progs: receive: fix a silent data loss bug with encoded writes

[fdmanana@kernel.org]

From: Filipe Manana <fdmanana@suse.com>

When using a v2 stream, with encoded writes, if the receiver fails to
perform an encoded write, it fallbacks to decompressing the data and then
write it using regular buffered IO. However that logic is currenty buggy,
and it can result in writing less data than expected or no data at all.
This results in a silent data loss.

Patch 3/3 fixes that bug and has all the details about how/why it happens,
while previous patches just added debug messages to the callbacks for
encoded writes and fallocate, which are currently missing and are very
useful for debugging.

Filipe Manana (3):
  btrfs-progs: receive: add debug messages when processing encoded writes
  btrfs-progs: receive: add debug messages when processing fallocate
  btrfs-progs: receive: fix silent data loss after fall back from encoded write

 cmds/receive.c | 31 ++++++++++++++++++++++++-------
 1 file changed, 24 insertions(+), 7 deletions(-)

-- 
2.35.1