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| author | Doug Oucharek | 2016-08-16 22:19:29 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman | 2016-08-21 15:57:39 +0200 |
| commit | e426f0d24e1c92f54098758cc83eb16989c48855 (patch) | |
| tree | 66c87b9a2dd563dc14e99d0381cbd5695d681414 | |
| parent | staging: lustre: llite: set op_max_pages (diff) | |
| download | kernel-qcow2-linux-e426f0d24e1c92f54098758cc83eb16989c48855.tar.gz kernel-qcow2-linux-e426f0d24e1c92f54098758cc83eb16989c48855.tar.xz kernel-qcow2-linux-e426f0d24e1c92f54098758cc83eb16989c48855.zip | |
staging: lustre: lnet: Do not drop message when shutting down LNet
There is a case in lnet_parse() where we discover that LNet
is shutting down but we continue to use the NI when we drop the
message and end up calling ko2iblnd_check_send_locked() which tries to
allocate from the Tx pool which has been cleaned up already.
This triggers a NULL pointer dereference.
This fix just returns from lnet_parse() when we disover LNet is
shutting down.
Signed-off-by: Doug Oucharek <doug.s.oucharek@intel.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-8106
Reviewed-on: http://review.whamcloud.com/19993
Reviewed-by: James Simmons <uja.ornl@yahoo.com>
Reviewed-by: Liang Zhen <liang.zhen@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/staging/lustre/lnet/lnet/lib-move.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/staging/lustre/lnet/lnet/lib-move.c b/drivers/staging/lustre/lnet/lnet/lib-move.c index 6a3f2e116ff6..5598fa876426 100644 --- a/drivers/staging/lustre/lnet/lnet/lib-move.c +++ b/drivers/staging/lustre/lnet/lnet/lib-move.c @@ -2002,6 +2002,9 @@ lnet_parse(lnet_ni_t *ni, lnet_hdr_t *hdr, lnet_nid_t from_nid, libcfs_nid2str(from_nid), libcfs_nid2str(src_nid), lnet_msgtyp2str(type), rc); lnet_msg_free(msg); + if (rc == -ESHUTDOWN) + /* We are shutting down. Don't do anything more */ + return 0; goto drop; } |