From f7ed15eb177ffd55e97c5817e2ccaacc364be4cd Mon Sep 17 00:00:00 2001 From: Nathan Chancellor Date: Tue, 12 Sep 2023 12:15:39 -0700 Subject: [PATCH] bcachefs: Fix -Wformat in bch2_btree_key_cache_to_text() When building bcachefs for 32-bit ARM, there is a compiler warning in bch2_btree_key_cache_to_text() due to use of an incorrect format specifier: fs/bcachefs/btree_key_cache.c:1060:36: error: format specifies type 'size_t' (aka 'unsigned int') but the argument has type 'long' [-Werror,-Wformat] 1060 | prt_printf(out, "nr_freed:\t%zu", atomic_long_read(&c->nr_freed)); | ~~~ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | %ld fs/bcachefs/util.h:223:54: note: expanded from macro 'prt_printf' 223 | #define prt_printf(_out, ...) bch2_prt_printf(_out, __VA_ARGS__) | ^~~~~~~~~~~ 1 error generated. On 64-bit architectures, size_t is 'unsigned long', so there is no warning when using %zu but on 32-bit architectures, size_t is 'unsigned int'. Use '%lu' to match the other format specifiers used in this function for printing values returned from atomic_long_read(). Fixes: 6d799930ce0f ("bcachefs: btree key cache pcpu freedlist") Signed-off-by: Nathan Chancellor Signed-off-by: Kent Overstreet --- fs/bcachefs/btree_key_cache.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/bcachefs/btree_key_cache.c b/fs/bcachefs/btree_key_cache.c index 505e7c365ab73..a74ee6d8a7cfd 100644 --- a/fs/bcachefs/btree_key_cache.c +++ b/fs/bcachefs/btree_key_cache.c @@ -1053,7 +1053,7 @@ int bch2_fs_btree_key_cache_init(struct btree_key_cache *bc) void bch2_btree_key_cache_to_text(struct printbuf *out, struct btree_key_cache *c) { - prt_printf(out, "nr_freed:\t%zu", atomic_long_read(&c->nr_freed)); + prt_printf(out, "nr_freed:\t%lu", atomic_long_read(&c->nr_freed)); prt_newline(out); prt_printf(out, "nr_keys:\t%lu", atomic_long_read(&c->nr_keys)); prt_newline(out); -- 2.30.2