These two patches are necessary for the throttle plugin to function.
The first adds a new prctl to hint to the underlying SFS a read will be done that bypasses the SFS (i.e., a sendfile call). This is necessary for the throttle to keep proper accounting. It also adds the proper handling of a redirect on read, including monitoring.
The second is just a few Atomics fixups; the throttle plugin requires a proper return value from atomic operations.
You can merge this Pull Request by running:
git pull https://github.com/bbockelm/xrootd-1 throttles_v3
Or you can view, comment on it, or merge it online at:
https://github.com/xrootd/xrootd/pull/22
-- Commit Summary --
* Add prctl for pre-read; useful to inform lower SFS monitoring layers that a read will occur which bypasses the standard read path (for example, when sendfile is used).
* Fix return values of atomics.
-- File Changes --
M src/XrdSfs/XrdSfsInterface.hh (5)
M src/XrdSys/XrdSysAtomics.hh (4)
M src/XrdXrootd/XrdXrootdFile.cc (4)
M src/XrdXrootd/XrdXrootdFile.hh (2)
M src/XrdXrootd/XrdXrootdMonData.hh (7)
M src/XrdXrootd/XrdXrootdXeq.cc (14)
-- Patch Links --
https://github.com/xrootd/xrootd/pull/22.patch
https://github.com/xrootd/xrootd/pull/22.diff
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