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| author | Peng Tao <tao.peng@primarydata.com> | 2015-06-23 19:52:03 +0800 |
|---|---|---|
| committer | Trond Myklebust <trond.myklebust@primarydata.com> | 2015-06-24 10:53:11 -0400 |
| commit | 1bfe3b259ff2e579b2acb190f874397d53274497 (patch) | |
| tree | cd7d4aa60d108f6abaecdfa1399d7994f705b8c8 /fs/nfs/nfs42proc.c | |
| parent | 27c430644369ccd9a2272492ba6d0e85e2e4800b (diff) | |
| download | blackbird-op-linux-1bfe3b259ff2e579b2acb190f874397d53274497.tar.gz blackbird-op-linux-1bfe3b259ff2e579b2acb190f874397d53274497.zip | |
nfs42: serialize LAYOUTSTATS calls of the same file
There is no need to report concurrently.
Reviewed-by: Jeff Layton <jeff.layton@primarydata.com>
Signed-off-by: Peng Tao <tao.peng@primarydata.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Diffstat (limited to 'fs/nfs/nfs42proc.c')
| -rw-r--r-- | fs/nfs/nfs42proc.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/nfs/nfs42proc.c b/fs/nfs/nfs42proc.c index ee0248340a42..06c74cd93875 100644 --- a/fs/nfs/nfs42proc.c +++ b/fs/nfs/nfs42proc.c @@ -204,6 +204,9 @@ nfs42_layoutstat_release(void *calldata) nfss->pnfs_curr_ld->cleanup_layoutstats(data); pnfs_put_layout_hdr(NFS_I(data->args.inode)->layout); + smp_mb__before_atomic(); + clear_bit(NFS_INO_LAYOUTSTATS, &NFS_I(data->args.inode)->flags); + smp_mb__after_atomic(); nfs_iput_and_deactive(data->inode); kfree(data->args.devinfo); kfree(data); |
