Go back to $PWD in fsstress.sh if compiling from source.

Although fsstress was being called with a static path the directory
it was writing to was in the current directory so doing a cd to the
source directory that is made in /tmp and then removing it later
caused it to be unable to write the files in a non-existent dir.

This change gets the current path first and cd's back into it after
it is done compiling fsstress.

Issue #6479.

Signed-off-by: Sandon Van Ness <sandon@inktank.com>
Reviewed-by: Alfredo Deza <alfredo.deza@inktank.com>
librados: drop reference to completion in container destructor

Move the PoolAsyncCompletionImpl reference drop from
C_PoolAsync_Safe::finish() to ~C_PoolAsyncSafe(), as finish() is only
called when the async request is actually sent.

Signed-off-by: Yehuda Sadeh <yehuda@inktank.com>
Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
librados: add some clarifying comments

about async pool operation handle

Signed-off-by: Yehuda Sadeh <yehuda@inktank.com>
Merge branch 'wip-6444' into next

Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
rgw: swift update obj metadata also add generic attrs

Fixes: #6462
We were missing the generic attributes when we updated the object
metadata (operation that only exists in the swift api).

Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
Signed-off-by: Yehuda Sadeh <yehuda@inktank.com>
Merge remote-tracking branch 'gh/next'