locks: add a dedicated spinlock to protect i_flctx lists
We can now add a dedicated spinlock without expanding struct inode.
Change to using that to protect the various i_flctx lists.
Signed-off-by: Jeff Layton <jlayton@primarydata.com>
Acked-by: Christoph Hellwig <hch@lst.de>
diff --git a/fs/nfs/delegation.c b/fs/nfs/delegation.c
index 3fb1caa..8cdb2b2 100644
--- a/fs/nfs/delegation.c
+++ b/fs/nfs/delegation.c
@@ -93,22 +93,22 @@
goto out;
list = &flctx->flc_posix;
- spin_lock(&inode->i_lock);
+ spin_lock(&flctx->flc_lock);
restart:
list_for_each_entry(fl, list, fl_list) {
if (nfs_file_open_context(fl->fl_file) != ctx)
continue;
- spin_unlock(&inode->i_lock);
+ spin_unlock(&flctx->flc_lock);
status = nfs4_lock_delegation_recall(fl, state, stateid);
if (status < 0)
goto out;
- spin_lock(&inode->i_lock);
+ spin_lock(&flctx->flc_lock);
}
if (list == &flctx->flc_posix) {
list = &flctx->flc_flock;
goto restart;
}
- spin_unlock(&inode->i_lock);
+ spin_unlock(&flctx->flc_lock);
out:
return status;
}