fs: fc_log replace magic number 7 with ARRAY_SIZE()

Replace the hardcoded value `7` in `put_fc_log()` with `ARRAY_SIZE`.
This improves maintainability by ensuring the loop adapts to changes
in the buffer size.

Signed-off-by: Guo Weikang <guoweikang.kernel@gmail.com>
Link: https://lore.kernel.org/r/20241202081146.1031780-1-guoweikang.kernel@gmail.com
Signed-off-by: Christian Brauner <brauner@kernel.org>

diff --git a/fs/fs_context.c b/fs/fs_context.c
index 98589aae52085c82d4e8951ca63be928cb33cec8..582d33e8111739402d38dc9fc268e7d14ced3c49 100644 (file)
--- a/fs/fs_context.c
+++ b/fs/fs_context.c
@@ -493,7 +493,7 @@ static void put_fc_log(struct fs_context *fc)
        if (log) {
                if (refcount_dec_and_test(&log->usage)) {
                        fc->log.log = NULL;
-                       for (i = 0; i <= 7; i++)
+                       for (i = 0; i < ARRAY_SIZE(log->buffer) ; i++)
                                if (log->need_free & (1 << i))
                                        kfree(log->buffer[i]);
                        kfree(log);