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/write.c b/fs/nfs/write.c
index 784c134..4ae66f41 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -1206,7 +1206,7 @@
/* Check to see if there are whole file write locks */
ret = 0;
- spin_lock(&inode->i_lock);
+ spin_lock(&flctx->flc_lock);
if (!list_empty(&flctx->flc_posix)) {
fl = list_first_entry(&flctx->flc_posix, struct file_lock,
fl_list);
@@ -1218,7 +1218,7 @@
if (fl->fl_type == F_WRLCK)
ret = 1;
}
- spin_unlock(&inode->i_lock);
+ spin_unlock(&flctx->flc_lock);
return ret;
}