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| author | Matthew Wilcox <willy@infradead.org> | 2019-02-06 13:07:11 -0500 |
|---|---|---|
| committer | Matthew Wilcox <willy@infradead.org> | 2019-02-06 13:12:15 -0500 |
| commit | fd9dc93e36231fb6d520e0edd467058fad4fd12d (patch) | |
| tree | aa7dc07e911ece5d69304e9e4bba1f9b937d8ce2 /lib | |
| parent | 809ab9371ca0a96b44d9866ad82849410759a45b (diff) | |
| download | linux-fd9dc93e36231fb6d520e0edd467058fad4fd12d.tar.bz2 | |
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>
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/test_xarray.c | 4 | ||||
| -rw-r--r-- | lib/xarray.c | 4 |
2 files changed, 4 insertions, 4 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)); diff --git a/lib/xarray.c b/lib/xarray.c index fb783bf2a441..1b97ca58bd15 100644 --- a/lib/xarray.c +++ b/lib/xarray.c @@ -1451,7 +1451,7 @@ EXPORT_SYMBOL(__xa_cmpxchg); * * Context: Any context. Expects xa_lock to be held on entry. May * release and reacquire xa_lock if @gfp flags permit. - * Return: 0 if the store succeeded. -EEXIST if another entry was present. + * Return: 0 if the store succeeded. -EBUSY if another entry was present. * -ENOMEM if memory could not be allocated. */ int __xa_insert(struct xarray *xa, unsigned long index, void *entry, gfp_t gfp) @@ -1471,7 +1471,7 @@ int __xa_insert(struct xarray *xa, unsigned long index, void *entry, gfp_t gfp) if (xa_track_free(xa)) xas_clear_mark(&xas, XA_FREE_MARK); } else { - xas_set_err(&xas, -EEXIST); + xas_set_err(&xas, -EBUSY); } } while (__xas_nomem(&xas, gfp)); |