commit 9078882dbe568c97a3b7eeab6792405e0a7dadbf
author Roman Arutyunyan <arut@nginx.com> Wed Jul 19 20:38:17 2017 +0300
committer Roman Arutyunyan <arut@nginx.com> Wed Jul 19 20:38:17 2017 +0300
tree 1d4d7f06ebc82d68bc47bdb598c1f285b508ebd6
parent dc1598f43ad3bf5a0549878a6eeec11816c68721

Upstream: keep request body file from removal if requested.

The new request flag "preserve_body" indicates that the request body file should
not be removed by the upstream module because it may be used later by a
subrequest.  The flag is set by the SSI (ticket #585), addition and slice
modules.  Additionally, it is also set by the upstream module when a background
cache update subrequest is started to prevent the request body file removal
after an internal redirect.  Only the main request is now allowed to remove the
file.