fs: ext2: update CONFIG_MAX_FILES name

Add the `EXT2` prefix to `config MAX_FILES` to more appropriately
namespace the symbol.

Signed-off-by: Jordan Yates <[email protected]>

Author: JordanYates

doc/releases/migration-guide-4.1.rst

@@ -446,6 +446,12 @@ Other Subsystems
 Flash map
 =========
 
+Filesystem
+==========
+
+* The EXT2 Kconfig symbol ``CONFIG_MAX_FILES`` has been renamed to
+  :kconfig:option:`CONFIG_EXT2_MAX_FILES`.
+
 hawkBit
 =======
 

subsys/fs/ext2/Kconfig

@@ -18,7 +18,7 @@ if FILE_SYSTEM_EXT2
 menu "Ext2 file system Settings"
 	visible if FILE_SYSTEM_EXT2
 
-config MAX_FILES
+config EXT2_MAX_FILES
 	int "Maximum number of opened inodes"
 	default 10
 

subsys/fs/ext2/ext2_ops.c

@@ -18,7 +18,8 @@
 
 LOG_MODULE_DECLARE(ext2);
 
-K_MEM_SLAB_DEFINE(file_struct_slab, sizeof(struct ext2_file), CONFIG_MAX_FILES, sizeof(void *));
+K_MEM_SLAB_DEFINE(file_struct_slab, sizeof(struct ext2_file), CONFIG_EXT2_MAX_FILES,
+		  sizeof(void *));
 
 /* File operations */
 
@@ -28,7 +29,7 @@ static int ext2_open(struct fs_file_t *filp, const char *fs_path, fs_mode_t flag
 	struct ext2_file *file;
 	struct ext2_data *fs = filp->mp->fs_data;
 
-	if (fs->open_files >= CONFIG_MAX_FILES) {
+	if (fs->open_files >= CONFIG_EXT2_MAX_FILES) {
 		LOG_DBG("Too many open files");
 		return -EMFILE;
 	}

subsys/fs/ext2/ext2_struct.h

@@ -224,7 +224,7 @@ struct ext2_backend_ops {
 	int (*sync)(struct ext2_data *fs);
 };
 
-#define MAX_INODES (CONFIG_MAX_FILES + 2)
+#define MAX_INODES (CONFIG_EXT2_MAX_FILES + 2)
 
 struct ext2_data {
 	struct ext2_superblock sblock; /* superblock */