fs: replace remaining __FUNCTION__ occurrences

__FUNCTION__ is gcc-specific, use __func__

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

fs/fat/file.c

@@ -208,7 +208,7 @@ static int fat_free(struct inode *inode, int skip)
 		} else if (ret == FAT_ENT_FREE) {
 			fat_fs_panic(sb,
 				     "%s: invalid cluster chain (i_pos %lld)",
-				     __FUNCTION__, MSDOS_I(inode)->i_pos);
+				     __func__, MSDOS_I(inode)->i_pos);
 			ret = -EIO;
 		} else if (ret > 0) {
 			err = fat_ent_write(inode, &fatent, FAT_ENT_EOF, wait);