XArray: Change xa_insert to return -EBUSY

Userspace translates EEXIST to "File exists" which isn't a very good
error message for the problem.  "Device or resource busy" is a better
indication of what went wrong.

Signed-off-by: Matthew Wilcox <willy@infradead.org>

1 files changed, 2 insertions, 2 deletions

diff --git a/lib/test_xarray.c b/lib/test_xarray.c
index 671a93ee09e6..9d894e93456c 100644
--- a/lib/test_xarray.c
+++ b/lib/test_xarray.c
@@ -346,7 +346,7 @@ static noinline void check_cmpxchg(struct xarray *xa)
 
         XA_BUG_ON(xa, !xa_empty(xa));
         XA_BUG_ON(xa, xa_store_index(xa, 12345678, GFP_KERNEL) != NULL);
-        XA_BUG_ON(xa, xa_insert(xa, 12345678, xa, GFP_KERNEL) != -EEXIST);
+        XA_BUG_ON(xa, xa_insert(xa, 12345678, xa, GFP_KERNEL) != -EBUSY);
         XA_BUG_ON(xa, xa_cmpxchg(xa, 12345678, SIX, FIVE, GFP_KERNEL) != LOTS);
         XA_BUG_ON(xa, xa_cmpxchg(xa, 12345678, LOTS, FIVE, GFP_KERNEL) != LOTS);
         XA_BUG_ON(xa, xa_cmpxchg(xa, 12345678, FIVE, LOTS, GFP_KERNEL) != FIVE);
@@ -388,7 +388,7 @@ static noinline void check_reserve(struct xarray *xa)
         /* But xa_insert does not */
         xa_reserve(xa, 12345678, GFP_KERNEL);
         XA_BUG_ON(xa, xa_insert(xa, 12345678, xa_mk_value(12345678), 0) !=
-                        -EEXIST);
+                        -EBUSY);
         XA_BUG_ON(xa, xa_empty(xa));
         XA_BUG_ON(xa, xa_erase(xa, 12345678) != NULL);
         XA_BUG_ON(xa, !xa_empty(xa));