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| author | Chuck Lever <chuck.lever@oracle.com> | 2017-06-08 11:51:56 -0400 |
|---|---|---|
| committer | Anna Schumaker <Anna.Schumaker@Netapp.com> | 2017-07-13 16:00:10 -0400 |
| commit | 4b196dc6fee9ba838ebabf824e294a429c79b27d (patch) | |
| tree | 075fb31c1d415171267a652574eea3b139c96253 /net/sunrpc/Makefile | |
| parent | 04d25b7d5d1b43fbaffe4ad4bb21288f0f305338 (diff) | |
| download | linux-4b196dc6fee9ba838ebabf824e294a429c79b27d.tar.bz2 | |
xprtrdma: Pre-mark remotely invalidated MRs
There are rare cases where an rpcrdma_req and its matched
rpcrdma_rep can be re-used, via rpcrdma_buffer_put, while the RPC
reply handler is still using that req. This is typically due to a
signal firing at just the wrong instant.
As part of closing this race window, avoid using the wrong
rpcrdma_rep to detect remotely invalidated MRs. Mark MRs as
invalidated while we are sure the rep is still OK to use.
BugLink: https://bugzilla.linux-nfs.org/show_bug.cgi?id=305
Fixes: 68791649a725 ('xprtrdma: Invalidate in the RPC reply ... ')
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Diffstat (limited to 'net/sunrpc/Makefile')
0 files changed, 0 insertions, 0 deletions